Monday, August 20, 2012

CM9 Stable for Epic 4G

CM9 stable for Epic 4G was released a while ago at Cyanogenmod.  Get the latest stable build from get.cm.  The install instructions in our CM9 Install Guide still apply.

Update 12/21/2012: CM10.1 Preview for Epic 4G.

Update 9/29/2012: If you are running CM10, you will need the temporary FC09 utility v4 in order to update Profile and PRL.  Thanks to mkasick and bbelos for fixing it!

The same team works on CM10, news is posted elsewhere on the Google+ page.

Tuesday, June 26, 2012

CM9 RC1 for Epic 4G Release Notes

UPDATE: CM9 RC2 Warning
CM9 RC2 for Epic has been released.  Unfortunately, it has a major bug where it fails to retain addon .zip's, causing folks to have problems like broken gapps or losing Sprint VVM after they upgrade.  You are fine if you manually flash addons immediately after upgrading RC2.  You may want to wait for the next release if you want a stable experience.


The CyanogenMod Project has released CM9 RC1 for all supported devices including Sprint's Samsung Epic 4G. CM9 RC1 contains primarily stability and branding changes since Epic 4G's beta4.  Please follow CM for Epic 4G development on Google+ and Facebook!

Release Notes
  • If you have trouble with auto rotation after enabling the settings in the Customization Guide, try calibrating your sensors with the temporary FC09 sdcard utility.
  • If you use any 3rd party kernels, mods or "tweaks", please do not report any bugs to the CM team.  We are not able to help you if you have modified your operating system in any way.
  • CM9 RC1 is officially supported by the CyanogenMod project.  So if you are using the CM9 RC1 build, you may now report bugs directly here.  See CyanogenMod's official announcement of CM9 RC1.
Changelog of CM9 RC1 (see previous)
    • One cause of the keyboard backlight failing to turn on when desired has been fixed.  It is possible other causes have not been fixed.  Please report if you continue to run into issues with the keyboard backlight.
    • Switch from binary libsensor to source-built libsensor from aries.  Theoretically it should behave identical to the old libsensor.  Please report any differences you notice with sensors.
    • Rescaled signal levels to fit AOSP's signal bar thresholds.  It should be roughly equivalent to the behavior in beta4.  Please report if you experience any major problems with signal bar behavior.
    • The new CM9 boot animation featuring the Cid mascot is now included.  If you want the old boot animation, download the flashable .zip from the boot animation page.
    Links
    See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

    If you appreciate this work, please consider supporting the Team Epic. Thank you!

    Tuesday, June 12, 2012

    Testing toward CM9 RC1 for Samsung Epic 4G


    Nightly Builds
    Download nightly builds of CM9 for Epic 4G from get.cm.


    News

    • Big News!  6/18/2012:
      • noobnl got the crespo4g modem (from the Nexus S 4G) to mostly work on Epic 4G, allowing CM9 to Update PRL and Profile natively for the first time!  Currently it has stability problems that noobnl is attempting to fix.  This is very experimental and unstable so no test builds are available yet.
      • If public testing of the crespo4g modem on Epic 4G does commence, it will initially be for advanced users only.  Flashing the crespo4g modem means you cannot use any other ROM on your phone.  Even temporary stock from sdcard will no longer work.  Users will need to know how to manually flash the crespo4g or Epic 4G modem with Odin or Heimdall in order to safely test the upcoming test CM9 builds.
    • Update: 6/16/2012: Fixed MMS Sending
      • Download [1]
      • md5sum d8af976c1cfec0c272984fbf5658dad6
      • Read below for changelog.  Please test and report here on Google+.
    • Update 6/12/2012: CM9 beta5-pre1
      • Download [1][2]
      • md5sum 29cf30a6b2f138cd01944f4e00af0285
    Changelog
    • Fixed MMS sending.
    • Switch from binary libsensor to source-built libsensor from aries.  Theoretically it should behave identical to the old libsensor.  Please report any differences you notice with sensors.
    • Rescaled signal levels to fit AOSP's signal bar thresholds.  It should be roughly equivalent to the behavior in beta4.  Please report if you experience any major problems with signal bar behavior.
    • The new CM9 boot animation featuring the Cid mascot is now included.  If you want the old boot animation, download the flashable .zip from the boot animation page.

    Wednesday, June 6, 2012

    CM9 beta4 for Epic 4G Release Notes

    CyanogenMod's Team Epic is proud to announce the release of CM9 beta4 for Sprint's Samsung Epic 4G. CM9 beta4 is contains mainly new features merged into CM9 since beta3.  Please follow us on Google+ and Facebook as we post the latest news and test builds there quite often.

    Release Notes
    • If you have trouble with auto rotation after enabling the settings in the Customization Guide, try calibrating your sensors with the temporary FC09 sdcard utility.
    • If you use any 3rd party kernels, mods or "tweaks", please do not report any bugs to the CM team.  We are not able to help you if you have modified your operating system in any way.


    Tour of Android 4.0.4 ICS CM9 on Samsung Epic 4G

    Changelog of CM9 beta4 (see previous)
      • epicmtd: Fixed photo taking after video recording.
      • epicmtd Kernel: Add CIFS and FUSE.
      • Phantom Voicemail fix now merged in CM9.
        • Non-Sprint carrier users probably will want to enable Phone > Settings > Message Wait Indicator if they use non-visual voicemail.
      • Changes in CM9 since beta3.
        • Option to hide the IME switcher.  Settings > Language & input > Selector notification
        • Lockscreen Calendar.
        • Lockscreen Weather.
        • Apollo music app, although reportedly it needs more work to look good on smaller screens like Epic.
        • Lockscreen Shortcuts.
      • Key repeating in recovery enabled for epicmtd.
      Links
      See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

      If you appreciate this work, please consider supporting the Team Epic. Thank you!

      Friday, May 11, 2012

      Epic 4G Kernel 3.0.x Progress

      T
      This post documents our progress porting kernel-3.0.x to work on Epic 4G CM9.

      News
      • Update 6/23/2012:
        • Haptic feedback is now working, thanks to nubecoder.
        • Updated the test kernel download files.  If you were using a previous test kernel, redownload the zImage and boot.cpio.gz.
      • News 6/20/2012:
        • The orientation sensor has been fixed with the switch to CM9 libsensor source, although the test kernel is not yet updated for it.
        • WiMax is working, although there are still some big bugs to work out.  The test kernel will be released when it is stable enough to use.
      • News 6/18/2012:
        • nubecoder is working on porting the vibetonz driver to the 3.0.x kernel.
      • Update 6/9/2012:
        • Reverted display drivers to match stock 2.6 which results in much better colors.
        • Incorporated the 200MHz min frequency fix from 2.6.
        • Switched the default governor to Ondemand and added the ability to control the min/max cpu frequency via the Performance menu.
        • Added sysfs controls from 2.6 for disabling the capactive key backlights via the Advanced Settings menu.
        • Updated to 3.0.33
        • Updated the test kernel download files.  If you were using a previous test kernel, redownload the zImage and boot.cpio.gz.
      • Update 6/4/2012:  
        • Added a "Bugs" list. 
      • Update 6/3/2012:  
        • Capacitive key backlights are now timing out with the keyboard light.
      • Update 6/2/2012: 
        • Mic recording and proximity sensor now properly continue to work during calls.
        • Kexec test kernel posted under Links section with instructions. Feel free to test and report any findings as a comment to this blog post.
      • Update 5/19/2012:  
        • Fix light & proximity sensors.  This also allows for Autobrightness to function.  
        • Fixed camera snapshots.  Front facing camera still needs fixing.  Fixed front facing camera.
        • There appears to be a bug during calls where the mic recording gets disabled as the CPU goes to sleep.  Waking the phone with the power key re-enables the mic.  Calls are not dropped and you are still able to hear the other person, but they obviously won't hear you.  Using an app like Softlocker to disable deep sleep allows the mic to function continuously during the call. 
        • Proximity sensor fails to operate the screen after above mentioned suspend issue, until manually reactivating the sensor or after initiating a new call session.
      • Update 5/17/2012:  Call audio is now working.  
      • Update 5/11/2012:  Wifi is now working.
      What Works
      • Haptic Feedback
      • Call Audio
      • Wifi
      • SDCard
      • USB Mass Storage
      • 3g & Text Messaging
      • GPS
      • Light/Proximity Sensor
      • Bluetooth, A2DP
      • Ringtones, Notification Sounds, Media Audio (Speaker & Headset)
      • Incoming/Outgoing Calls
      • Recovery Mode
      • adb
      • Keyboard
      • Touchscreen & Softkeys
      • Autobrightness
      • Capacitive backlight timeout
      • Camera Snapshots (Front and Back)
      • Video Recording
      • Screenshots
      • /system, /data, /cache mounted as mtd/yaffs2
      • Suspend/Resume
      • Charging
      What Doesn't Work Yet
      • WiMAX - In progress.
      • Headphone mic (need to confirm)
      • More to add as we find it
      Bugs
      • Capacitive key backlights become dim at some point (happens after first suspend).
      • adb uses Google vendor id (18d1) during recovery mode instead of Samsung id (04e8).
        • Linux users may need to adjust your usb udev rules to recognize device. (Permanent flash only)
      • Registers a generic adb device serial number.
      • Charging bugs (seem to be tied together, but doesn't always happen)
        • Statusbar battery icon not properly reflecting actual charge state. (possibly occurs after first suspend, still unconfirmed.)
        • Phone enters deep sleep while on charger. (might have been a fluke, need to confirm)
        • Charge LED does not stay lit with screen off. (Presumably when enters deep sleep)
      • Powered off device on charger will automatically boot up (Permanent flash only)

      Links


      Temporary kexec test kernel instructions:
      Files last updated: 6/23/2012
      Note:  The orientation sensor should work if you are on Beta5-pre1 or newer.  If north is pointing the wrong direction, consider a quick calibration as seen here:

      1. Download the 3 files: zImage, boot.cpio.gz, & boot_zImage_with_boot.zip
      2. Place the files at the root of your sdcard (/sdcard/zImage, etc.)
      3. Flash boot_zImage_with_boot.zip from CWM.
      IMPORTANT:  The phone's stock browser saves zImage as zImage.bin.  You *must* rename it back to zImage.

      Please test anything in the list above, whether we specify it working or not.  If something isn't working fully, or not working at all, please let us know in a comment.  Anytime you want to go back to your normal kernel, just reboot the phone.

      CM9 beta3 for Epic 4G Release Notes

      CyanogenMod's Team Epic is proud to announce the release of CM9 beta3 for Sprint's Samsung Epic 4G. Please follow us on Google+Facebook, or Twitter for the latest news. This release contains many new features and significant bug fixes!

      Release Notes
      • IMPORTANT! Before you upgrade to CM9 beta3, DO THIS to prevent possible issues.
        • Remove Voltage Control, SetCPU, and uncheck "Set on boot" in Settings > Performance > Processor.
        • If your GPS navigation was broken in CM9 beta2, uninstall and reinstall Google Maps.
        • If you have had trouble with Gallery displaying photos in the wrong order, or thumbnails matching to the wrong photo, see this thread for a tool to run before you upgrade to beta3.
      • If you have trouble with auto rotation after enabling the settings in the Customization Guide, try calibrating your sensors with the temporary FC09 sdcard utility.
      Project News
      • Launch of Team Epic - CyanogenMod's Sprint Samsung specialists
        • Due to the success of EpicCM and the generous support of the Epic 4G community, we were able to recruit many developers and non-dev leaders to help with QA testing, documentation and answering questions.  This has allowed us to purchase additional dev phones in order to aid development of Epic Touch, Nexus S 4G and Sprint Galaxy Nexus.  We also have productive teamwork with Epic 4G's AOKP developer Alias8818, allowing us fix bugs faster in both CM9 and AOKP.  We are now continuing fund raising to purchase additional dev phones including Sprint's upcoming SGS3.
      • kernel-3.0.x News
        • One of our long-term goals is port a newer 3.0.x kernel work on Epic, and to maintain that kernel together with the very similar hardware of the Nexus S 4G.  KalimAz (CyanogenMod's maintainer of Nexus S and Galaxy Nexus) received an Epic 4G in Spain on May 3rd.  Now KalimAz, mkasick and bbelos are slowly getting closer on this goal, most recently they were working on fixing the wifi driver.
      Tour of Android 4.0.4 ICS CM9 on Samsung Epic 4G

      Changelog of CM9 beta3 (see previous)
        • Theme Chooser
          • The ability to customize look and feel of CM9 to user choice using predefined themes or community driven user inspired ideas. Preview the theme before applying to make sure its exactly what your looking for in a theme before applying to the phone.
          • Lockscreen Shortcuts
            • Allows you to choose lock screen shortcuts (1-5) anything from browser, Facebook, twitter and messaging, the choice is yours, with customizable icon's.






        • Capacitive Buttons/Keyboard Backlight Disable Option
          • One of the most exciting new features in CM9 beta3 for Epic 4G is the ability to disable the capacitive touchkey backlights.  Unlike other phones with multiple brightness levels, the touchkey lights on Epic 4G have only on and off.  Using the Epic in the dark would be often annoying as the touchkey lights are blindingly bright.
          • Settings > Advanced > Disable Touchkey Lights turns off lights after a 750ms delay since you last touched it.  We designed it this way on purpose so the user has enough time to recognize the location identity of the four buttons.
          • Settings > Display > Automatic backlight > Edit other levels... allows you to further customize when touchkey lights and even the keyboard backlight will be enabled based upon the light sensor levels.  0 means off and 255 means on.
        • Unique Bluetooth MAC Address Fix
          • Previously Epic CM9 used a generic MAC address instead of a unique per-device MAC address.  Since the bluetooth address has changed, all  users must re-pair their bluetooth devices before they may be used again.  This resolves several known issues with some newer bt devices.
        • Gallery Photo GPS Fix
          • All previous versions of CM9 for Epic 4G would an erroneous date of 1969 in the photo EXIF data if you have GPS enabled at the time of taking the photo.  This would cause the Gallery app to become confused and display photos in the wrong order.  All new photos taken by the Camera of CM9 for Epic 4G will no longer have this issue.  bbelos and Cyc of Team Epic wrote this tool and instructions for fixing your older photos.
        • Conservative Overclocking
          • CyanogenMod aims for maximum stability, so we have decided to include only the most conservative overclocking and no undervolting in the standard CM9 kernel.  Undervolting is known to work 99.99% of the time, but rare timings involving certain apps can cause the phone to spontaneously reboot.  It is our belief that many reports of random reboots are the result of unsafe overclocking or undervolting.  We will not ship the means for users to shoot themselves in the foot in the default operating system. 
          • We have added only the 1.2GHz step, disabled by default.  You enable it in Settings > Performance > Processor > Maximum CPU frequency.  Since voltages cannot be changed, no add-on tools like Voltage Control are necessary.
          • While 1.2Ghz maximum seems to be stable for most users, we do not recommend using it if you care about maximizing stability.
        • Smoother cpufreq scaling
          • All previous kernels have had trouble where it would no longer use the 100MHz step if you have changed your cpufreq or governor settings.  Major fixes were made to the kernel to allow cpufreq to scale more smoothly.  As a result, the cpufreq governors now behave differently.  The powersave governor has been removed as it causes extreme slowness, failures and consequential higher battery consumption. 
          • GPS Navigation and Google Maps Fix
            • CM9 beta2 added emulation for RotationVectorSensor2.  Unfortunately this exposed a race condition that can cause sensors to entirely deadlock, the cause of the rare reports of GPS Navigation failures we have been hearing lately.  beta3 contains teamhacksung's fix to the magnetometer driver to prevent this failure.
            • If your GPS was already broken in CM9 beta2, you may need to uninstall and reinstall Google Maps in order to fix it.
          • Camera Timer
            • The Camera app now has the ability to set a countdown timer before a photo is taken.  While in the Camera, hit the Settings button, then the action bar (three dots), then tap the camera button.  The on-screen camera button will turn red and you will see a red countdown in the top left.  When it reaches zero it will take a photo.
          Links
          See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

          If you appreciate this work, please consider supporting the Team Epic. Thank you!

          Thursday, May 10, 2012

          Team Epic Development Fund

          Dear Epic 4G community,

          We have merged the Epic 4G donor list to Team Epic's new blog.  Your support has made it possible to raise nearly $5,000 in funds toward build server upgrades, phones and other development expenses.  This generous community underwriting has made it possible for the team to expand and begin to support development of other flagship Samsung phones on Sprint like the Epic Touch and Galaxy Nexus.

          The team is is now fixing bugs to prepare for CM9 beta3 for Epic 4G.  A great many bugs have already been fixed and new features are working!  If you follow us on Google+ you can help us to test builds as we approach release.  Epic 4G is still a great phone and this team will continue to update CyanogenMod to support it for the foreseeable future.

          In an unusual but highly successful move, we have invited Alias8818 of Epic 4G AOKP to collaborate on common issues as a member of Team Epic.  This has turned out to be a healthy partnership as we have learned about fixes in AOKP to merge into CM, and AOKP relies on CM for device bug fixes.

          If you appreciate our work, please consider supporting our team with a tiny contribution of $5.  We are currently saving up reserves to purchase Sprint's upcoming SGS3 for our lead developers, as we believe it will be the best Android phone on Sprint.  We sincerely hope it will have a slider keyboard like the first generation SGS Epic 4G, but even without a keyboard it will be an awesome phone that we want CyanogenMod to work well with.

          Thank you!

          Monday, May 7, 2012

          Pictures Repair and Cleanup for Epic CM9

          Epic isn't that old!
          All pictures taken since the start of CM9 for the Epic have contained invalid GPS data that have affect how the pictures are shown in Gallery, this caused photos to appear out of order as Gallery thinks they were taken in year 1969.  Additionally there were previously issues with removable storage but people's thumbnails were still incorrect and not matching their respective pictures.  Also Beta2 and earlier suffered from an issue where if CPU minimum and maximum frequencies were modified they would lose 100Mhz setting so the phone would idle at 200MHz instead of dropping to 100MHz when idle.

          Beta 3 has all these issues resolved but the pictures already taken are still affected as well as settings saved for the processor.

          This patch does the following:
          • Removes ALL GPS data from CM9 and CM7 pictures
            • Pictures taken with Touchwiz ROMs are not affected
            • Pictures taken with GPS Location ON with Beta 3 and newer as well as CM7 WILL lose GPS data from those pictures if they are not backed up elsewhere before flashing!
          • Clears Gallery's thumbnail cache and databases so it can rescan all the images fresh
            • Gallery may show some of your pictures with GPS data in details but that is just stored in the database and not in the file and will be lost after the script is ran.
          • Wipes the /data/system/throttle folder so CPU governor and states will start at default frequencies
          Depending on the number of pictures this can take several minutes. I recommend keeping the phone plugged in while running to ensure the process is not interrupted.

          Time stamps shown by Gallery will be off by your Time Zone (-4 hours to -6 hours here in the US). This is a bug affecting all android OSes to present and is NOT device specific. Even with the time-stamps being off the pictures have the correct order and will be read correctly when uploaded to the web or other devices.

          Download picture-gpsdate-fix-cwm.zip [1]
          Flash in CWM Recovery.

          If you appreciate this work, please consider supporting the Epic CM team. Thank you!

          Monday, April 23, 2012

          CM7 RC1-Update1 Released!

          Exciting news for some of you: A new CM7 update!
          This fixes some of the little bugs left in CM7:
          • Audio fixes:
            • The speaker volume has been boosted to match EL30 and CM9
            • The headset mic volume has also been boosted to match EL30 and CM9
            • Dock audio redirection has been enabled, but you'll need this app to use it
          • Liblight changes: Restored the Touchwiz stock 6 second softkey and keyboard backlight timeout
          • Sensors: A fix for a deadlock condition within the sensors, should fix issues with GPS navigation locking up
          • Tun: Tun is now built in, for anyone that uses a VPN
          Check the CM7 Status Page for download links and more!

          Coming soon: An optional kernel with a 1.2ghz step. There are some code conflicts to work out between the CM9 kernel implementation and the CM7 kernel, mostly due to the aggressive memory work for CM9. Check back later for status.

          Friday, April 13, 2012

          Update PRL and Calibrate Sensors for CM9 / CM10

          Utility for CM9 / CM10 Epic 4G
          This is a temporary ROM that boots Samsung's FC09 firmware entirely from sdcard without making any changes to the ROM installed on your phone.  Simply reboot to return to your normal ROM.  This sdcard ROM is useful for several purposes.
          • Settings > About Phone > System updates >
            • Update Profile.
            • Update PRL.
          • Settings > Display > Horizontal calibration
            • Do this if you have problems with auto rotate on CM9.
          • Sprint Activation.
          • Dial codes and diagnostic mode.
          • Test Samsung FC09 behavior to aid in CM development.
          Changelog
          • v4: September 28th, 2012
            • Fix kernel to boot from CM10.
          • v3: April 13th, 2012
            • FC09-based with working 3G, 4G, Update Profile, faster speed.
            • Uses 500MB on sdcard instead of 1GB.
            • Includes Connectbot and GPS Status.
          • v2: April 8th, 2012
            • Fixed 3G, 4G and Update Profile, and faster speed.
          • v1: January 25th, 2012
            • EL30-based
          Download
          How To Use
          1. Download the epic4g-fc09-sdcard-utility-v4.tar.xz tarball.
          2. Unpack using 7-Zip (Windows) or Keka (MacOS X) or any other xz capable archive software.  Recent versions of Linux can unpack it with tar xfvJ filename.tar.xz.
          3. If you have v1 or v2, you may want to delete /sdcard/multiboot/EL30.
          4. Plug your Epic 4G into your computer and mount as USB storage.  Copy the entire multiboot folder into the base of your sdcard.  Safely remove the USB storage device from your computer to ensure it wrote everything properly.
          5. Boot into CWM5 on your Epic 4G.
          6. Install zip from sdcard > choose zip from sdcard > multiboot > FC09 > boot_FC09.zip
          7. WAIT.  It will take a while to boot.  You might see a "com.android.phone is not responding", do not worry, it is harmless.  Wait until Media Scanning is complete before doing anything.
          Warnings!
          • DO NOT MOUNT USB STORAGE ON YOUR COMPUTER. BAD THINGS WILL HAPPEN.  DO NOT USE AS DAILY DRIVER.  It will be a bit slow because your sdcard is slow.
          [XDA Discussion] [Google+ Discussion] [Source]

          If this tip was helpful, please consider supporting the Epic CM Team with even a tiny contribution. 

          Monday, April 9, 2012

          CM9 beta2 Android 4.0.4 for Epic 4G Released

          The Epic CM team is proud to announce the release of CM9 beta2 for Sprint's Samsung Epic 4G. Please follow us on Google+Facebook, or Twitter for the latest news. This release contains bugfixes and a major version upgrade to Android 4.0.4!

          Tour of Android 4 CM9 on Samsung Epic 4G
            Changelog of CM9 beta2 (see previous)
              • Wired Headset Microphone volume now louder in calls.
              • Loud Speaker Volume now louder.  Both phone calls and media (music, Netflix, etc.) should both be louder.
              • Added emulation for RotationVectorSensor2.
              • Android 4.0.4 brings a few fixes and improvements.
                • Users report a smoother overall experience and better battery life than 4.0.3.
                • One user reported sync with Exchange server failed in 4.0.3 but now works with 4.0.4.
                • Camera pinch to zoom.
              • Updated to 4.0.4 crespo blobs.
              • Enabled tun in the kernel for VPN users.
              • mdnie re-enabled.
              News
              • The Epic CM team welcomes Alias8818 (AOKP developer) and gTan64 (Ubuntu developer) as new partners!  We have many of the same issues, so by collaborating hasten development of all three projects.
              • See bbelos' news update about progress on the kernel-3.0.x port.  gTan64 has been very helpful in fixing sdcard and audio!  Much work remains before kernel-3.0.x becomes usable on our phone.
              Release Notes
              Links
              See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

              If you appreciate this work, please consider supporting the Epic CM team. Thank you!

              Monday, April 2, 2012

              EL30 to FC09 modem CWM upgrade Zip

              zanderman112 has taken the FC09 update.zip that was found on Google's servers and created a CWM flashable zip that will upgrade your EL30 modem to FC09. If you are currently on CyanogenMod (or any other mtd ROM), you will need to use the CWM5 BML kexec zip file found in this post.

              There has not been much testing as far as stability or performance on this modem, but if you would like to try it, here it is!

              Please note, if you decide to use the delta zip to upgrade your modem and you experience strange issues, you should assume your modem is corrupted and Odin back to EL30.  From past experience of delta flash upgrades EC05->EI22->EL30 it seems modem corruption happens 10-20% of the time, even with pure stock phones!  We have not seen any real difference with FC09 modem, so if your existing EI22 or EL30 modem is stable, you may be better off keeping your modem.  See this post if you need to flash the older modems.

              If you are on the FB15 modem, you must use Odin to load the EL30 modem if you want to upgrade to FC09 modem.

              Download EL30 to FC09 delta 
              Mirror: [1] | [2]

              Please reply in the comments or on Google+ with any issues you may have with the zip or with your experience with the new modem.

              Test Feedback Needed: Experimental Kernel saves 7MB RAM

              Update 4/7/2012: Due to code review we have decided to go with a more conservative 1.5MB RAM savings for the upcoming CM9 beta2.  We will further investigate for later releases if it is 100% safe to further reduce the RAM usage by reverting triple buffering to the video decoder double buffering behavior used in gingerbread.

              noobnl found a simple hack that reduces the kernel framebuffer memory, giving 7MB to userspace on Epic 4G.  We need your help to test this kernel and report any changes in behavior that you see.

              There *has* to be a drawback to this, perhaps in a very rare corner case.  If you find a failure case, please verify it by doing the reproducer on the previous kernel, then again on this kernel.

              Download
              This experimental kernel works with both CM9 beta1 and the experimental CM9 beta1-test-4.0.4 and contains the following changes since CM9 beta1's kernel.
              • mdnie enabled.
              • tun enabled for VPN users.
              • Kernel framebuffer memory reduced by 7MB.
              Please report any changes that you see here or in this Google+ thread.  Thanks!

              Friday, March 30, 2012

              Testing Feedback Needed: Android 4.0.4

              This is NOT A RELEASE!  This is our first working build of 4.0.4 and with very little testing so it may have hidden breakage.  Please test only if you plan on providing feedback to help us improve before CM9 beta2.  CWM backup is highly recommended!

              Help Needed - Advanced Users Only
              CM9 beta1-test-4.0.4 is CM9 beta1 with Android 4.0.4 built on March 30th, 2012.  The audio fix is not ready so it is not included in this build, although mdnie is enabled.  Please help by testing this ROM and reporting any of the following.
              • See anything different from CM9 beta1?  These are not bugs but just changes in behavior.
              • Any regressions since CM9 beta1?  These are ONLY new bugs.  If something worked in CM9 beta1 but no longer in this build, we need to know about it.  Important: Please post your feedback even if it is the same bug as someone else's report.  We need multiple reports to better confirm new bugs!
              Warning!  3rd party themes are known to break this ROM.  Do NOT use 3rd party kernels with this ROM or your test feedback may confuse the developers.

              Download CM9 beta1-test-4.0.4
              Mirror [1] [2] [3] [4] [5]
              md5sum b4543959168db320ea2c9f58f057c01b

              Please reply here in the blog or here on Google+.  Your feedback will help us to improve CM9 beta2.  Thank you!

              Monday, March 26, 2012

              Kernel 3.0.x Boots! (Sort of...)

              After weeks of effort, bbelos got the kernel-3.0.x to boot on the Epic 4G!

              Well... nothing works.  No radios.  No camera.  No sdcard.  It also crashes very quickly.

              Anyway, this is progress!  bbelos continues work on the kernel merge.  Still could be a few weeks before it is as stable as our existing 2.6.35 kernel.

              UPDATE 3/27/2012: I forgot to mention, we are not 100% sure this is possible yet, but we are hoping the crespo kernel merge will allow us to use crespo4g (Nexus S 4G) proprietary blobs including the crespo4g modem and menus that allow Activation, Profile, PRL Update and sensor calibration. If crespo4g's modem works on Epic with this new kernel, then we will be able to provide a complete flashable Heimdall image to flash any Epic directly to CM9, and you would have no reason to ever go back to TW rom.

              UPDATE 4/1/2012: bbelos wrote this status update on Google+.
              Just a quick update on the Epic4g Kernel 3.0.x port:

              What works
              MTD/YAFFS2 partitions, Calls / texts, 3G Data, GPS, Bluetooth (activates, device pairing untested), Touchscreen, Softkeys, 
              Keyboard (mostly), Reboot to recovery, adb

              what doesn't work yet
              Sleep issues (system is stable when connected to a pc), Audio, Wifi, sdcard

              Anything not listed has either not been attempted to date or has just gone untested.

              Sunday, March 18, 2012

              CM9 beta1 for Epic 4G Released

              The Epic CM team is proud to announce the release of CM9 beta1 for Sprint's Samsung Epic 4G. Please follow us on Google+, Facebook, or Twitter for the latest news!  This release contains bugfixes and a few minor features since beta0.
              Tour of Android 4 CM9 on Samsung Epic 4G
              Changelog of CM9 beta1 (see previous)
              • Voicemail Notification option for those suffering from the "Phantom Voicemail" bug.  Phone < menu button > Settings > Voicemail Notifications is disabled by default.  Epic users on non-Sprint or overseas CDMA carriers may want to enable this option if they want voicemail notifications.
              • CM9 boot animation version 2
              • Device Encryption kernel support enabled.
                • Currently Untested!  Not compatible with CWM! Do not use!
              • 1.9MB memory freed by disabling the FIMC1 mmap and reducing mmap usage for the JPEG driver.  It is unclear what if any negative effects this causes.  crespo is also testing this currently.
              • Disable Samsung's mdnie improves color quality.
              • New CM9 Features
                • Holding Volume Up/Down while screen is off will change the current playing music.
                • Settings>Profiles
                • Settings>Developer Options>Root Access allows you to choose your root access mode.
                • Settings>Display>Rotation now has additional rotation options.
              Release Notes
              • Thanks to user feedback, bbelos decided to leave the Dock Audio behavior as-is.  Alarm and ringtones will play from the phone's speaker, not the dock.
              • The newly working Sprint Visual Voicemail (see Customization Guide) has a few glitches, the most annoying of which is that it does not block the text messages from 9016 that you receive when there is a new voicemail.  We will fix this eventually.
              Known Bugs
              • When using a wired headset, users have reported that the microphone volume is too low, making it difficult to be understood on the phone.
              • These issues are targeted to be fixed by, or after the crespo kernel merge.  bbelos is making good progress on the kernel-3.0.x port.  Not booting yet but getting closer.
                • CM9 for Epic is missing 5 of the 8 motion sensors usable in Gingerbread.  This apparently is the cause of auto-rotation not working for the minority of users.  Many of these users are able to make auto-rotation work by calibrating sensors using the temporary sdcard EL30.  Thanks to Joseph Shugzda for identifying this issue!
                • Maximum speaker volume is much smaller than Samsung's ROMs.
              Links
              See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

              If you appreciate this work, please consider supporting the Epic CM team. Thank you!

              Wednesday, March 14, 2012

              Help Needed: Test Kernel for beta0

              boot_beta0_disable_mdnie_tempkernel.zip
              md5sum 851618ac07a41b4ef074012fe43e0732

              This is a temporary kernel with two of the experimental patches we are testing for the upcoming CM9 beta1.  You can boot it by "flashing" in CWM.  Nothing is actually flashed.  It just boots this alternate kernel and your phone behaves like normal except with these changes below.  When you want to switch back to the beta0 kernel, just reboot.  Your feedback will help to determine if we will keep these changes for beta1 or not.
              • Disable Samsung's mdnie.
                • I have no idea what mdnie does, but noobnl says it "makes the color look bad".  I personally think it makes some fonts look bad.  What changes do you notice?  Which do you prefer, beta0 or the way things look with this temporary kernel?
              • Free more RAM by disabling FIMC1 mmap and reduce mmap usage for JPEG driver. 1.9 MB is freed.
                • This has something to do with the camera, but we don't know what.  It seems to work.  Can you find anything that this breaks or slows down?
              Please reply with your feedback here or on our Google+ page!

              Monday, March 12, 2012

              CM7 Beta 1 Released

              Well folks, its that time!
              Yes, for those of you still using good ol' CM7, there's a new version for you!
              The Epic CM team is proud to announce CM7 beta 1 for the Samsung Epic 4g. This new build has very few bugs, and some fixes backported from CM9. This is the last chance to test before RC1!

              Changelog
              • Radio Fixes, such as the 'Ring of death' issue and the "Call has been lost" dialog on a far-end call hangup
              • Audio fixes, which improve sound quality and allow better in-call volume changing
              • Disappearing sdcard ringtone fix. Changes to the media provider to keep ringtones from disappearing randomly.

              Links
              Check the CM7 Status page for download links and installation directions.
              If you still have any issues with CM7, you can report them to the thread on xda.

              Wednesday, March 7, 2012

              CM9 beta0 for Epic 4G released

              The Epic CM team is proud to announce the release of CM9 beta0 for Sprint's Samsung Epic 4G. Please follow us on Google+ or Facebook for the latest news!  This is an exciting new release as we now consider CM9 for Epic 4G to be of beta quality because all critical bugs are now fixed.  What remains are only annoyances or missing non-core functionality not yet implemented upstream in CM9.

              Tour of Android 4 CM9 on Samsung Epic 4G
              Changelog
              • 36MB memory has been freed!  Upgraded the MFC driver to match crespo, then found the minimum amount of cache necessary to allow camera, camcorder and video playback to work.  This allowed us to free 36MB memory from the kernel.
              • Fixed the annoying disappearing sdcard ringtone issue.  Thanks to everyone who contributed discussion and logs on the problem!
              • Fixed visible artifacts during video playback.  Youtube, Netflix and other videos should be less distorted now.
              • Fixed 720p video playback skipping caused by the video artifacts fix.
              • Fixed the signal bars to behave like stock ROM.  No real change in signal, it just makes users feel better about the signal bars and Time Without Signal percentage.
              • Dock audio kernel support.  Requires the Galaxy Dock Sound Redirector app from Market.
              • Fixed (one cause of) data reconnection failures that otherwise aren't remedied by toggling mobile data or airplane mode, but only by reboot.
              • Quiet Hours settings allow you to customize the behavior of notifications during the night.
              • XZ compression of kernel shrinks the ROM size by 1MB.
              • Improvements to kernel build and debug support scripts.  Not relevant to users, but helpful to Epic kernel developers.
                Known Bugs (The Most Annoying)
                • Gallery: There is a serious bug in the Gallery app where it thinks certain recent photos are from year 1969.  This affects both CM9 Gallery2.apk and Google's GalleryGoogle.apk.  We are trying to diagnose this problem.
                • Battery: Sometimes the camera is stuck on after you are no longer using the camera app, causing the battery to drain quickly even when the CPU is in deep sleep.  Until we fix this bug, please reboot the phone if you notice faster battery drain after using the camera.  Camera and Google Talk have been known to trigger this bug.
                • Battery: If your sdcard has many files you should add .nomedia files to all directories that do not contain media like photos or music so the media scanner will skip them.  You especially want .nomedia in directories containing CWM or Titanium backups.  For most people media scanning takes only a few seconds, but some experience 30+ minutes of 100% CPU usage during media scanning due to a rare bug that we have not yet been able to isolate.
                Links
                See the CM9 Status page for more details. Then proceed to the CM9 Install Guide.  Please check if your bugs are already filed in the Epic CM Issue Tracker.

                If you appreciate this work, please consider supporting the Epic CM team. Thank you!

                Customization Guide

                Updated 9/30/2013:This guide is a menu of options to customize your experience after you have installed CM9 on the Samsung Epic 4G.

                Battery Optimization Guide

                Updated June 2nd, 2012
                This guide gives recommendations on Epic 4G batteries, explains the many options you can customize to improve battery life and how to diagnose battery drain problems on CM9 for the Samsung Epic 4G.  Some of this advice is based upon our current understanding of bugs in CM9 and how to best workaround causes of battery drain until the developers are able to fix their causes.  We will update this guide as we learn more.  If you have suggestions for further improve this guide, please reply in the comments below.

                Tuesday, March 6, 2012

                Shipping Epic 4G to Spain

                Today we bought an Epic 4G from Craigslist for $60.  It works fine but the glass is cracked.  Tomorrow we are shipping it to Spain!  Makes total sense, right?

                Sometimes I wish I had a real camera...

                The CM9 crespo maintainer KalimochoAz will help us with our kernel-3.0.x port.  We will merge the Epic and Nexus S kernel into the same kernel tree, currently based on kernel-3.0.23.  Epic uses many of the same hardware drivers as crespo.  By merging our kernel source, we can more easily benefit from the combined efforts of our two sizable development and testing teams.  In the medium term we can explore the possibility of merging in other Samsung Galaxy S phones.  In the long-term, we hope to rebase the kernel to upstream kernel-3.4+ after Android mainlining is complete.  Perhaps we will one day be able to push our device drivers to the linux-next staging tree.  That is the vision.

                Meanwhile, bbelos will have our team's Nexus S 4G.  He will work with KalimochoAz on the kernel-3.0.x port.  That way both developers will be able to verify that changes made to one phone does not break the other phone.

                Should we begin calling it the Nexus Slide? =)

                Update 4/25/2012:
                This March 6th attempt to ship an Epic 4G to Spain seems to have disappeared in the mail.  We have now shipped another Epic, this time USPS Express Mail International with tracking and insurance.

                Update 5/3/2012:
                KalimAz finally received an Epic 4G in Spain!