CyanogenMod 11 [UNOFFICIAL] for i777 with Stagefright Fix

[dimoochka]

For all those who aren't yet ready to upgrade to Lollipop but would like to close this vulnerability on their device, I have built the latest CM11 i9100 source as of 9/1/15 (since CM11 nightlies for this device are no longer released for download). This build is unofficial but I have not modified it in any way**. It includes all StageFright fixes that the CM development team has implemented.

All required downloads are located here.

Works well as a daily driver with Lanchon's i777 Crossflash Kernel on my device.

Installation instructions can be found on CM's website or on Lanchon's kernel thread (above).

I recommend wiping cache/system/data prior to flashing (dirty flash with only a cache wipe did not work on my device when upgrading from the last public nightly).

Good luck!

** I did manually modify the updater-script to allow this ROM to be flashed on any device (because i9100 ROMs refuse to flash on the i777/S959G). Flashing this ROM on anything other than an i9100/i777/S959G WILL brick your device.

XDA:DevDB Information
CyanogenMod 11 [UNOFFICIAL] for i777 with Stagefright Fix, ROM for the AT&T Samsung Galaxy S II SGH-I777

Contributors
dimoochka
ROM OS Version: 4.4.x KitKat
Based On: CyanogenMod

Version Information
Status: Nightly

Created 2015-08-31
Last Updated 2015-08-31

 

[dimoochka]

Apparently the crossflash kernel is incompatible with this build (not sure why - was working ok on my device). A compatible version was rebuilt by Lanchon on 9/4/15 (can be found on his thread or in the download link in the first post).

 

[cyril279]

Very considerate, and good of you to take the time to present this. Cheers, and build-on!
-Cyril

 

[mmystere68]

Stagefright bug still present

Flashed it yesterday.....all works fine.....except bug isn't fully patched

 

[dimoochka]

Flashed it yesterday.....all works fine.....except bug isn't fully patched

I just started a rebuild. Will try to upload when it's finished tonight - maybe that vulnerability has been patched since the last time I built this (months ago).

 

[dimoochka]

Flashed it yesterday.....all works fine.....except bug isn't fully patched

Rebuilt and uploaded. Give it a shot - I'm not sure if it'll work or if that bug is patched but it shouldn't hurt to try. Just make a backup first.

 

[mmystere68]

Rebuilt and uploaded. Give it a shot - I'm not sure if it'll work or if that bug is patched but it shouldn't hurt to try. Just make a backup first.

i just dirty flash it. right?

 

[dimoochka]

i just dirty flash it. right?

If you're coming from a prior version of CM11 dirty flash should be fine.

 

[Edgarhighmen]

Coming from omnirom 4.4.4 with TWRP, safe or no? There's a newer thread by Lanchon... my eMMC chip is VYL00M Firmware revision 19 (which can have superbrick bug?) ugh... Typically.... I softbrick my phone a few days til I sort things out when upgrading from GB>ICS>JB>kitkat (kitkat softbricked me)

All this partitioning stuff has me a bit sketched, but I hate how kitkat disabled USB mass storage (without me knowing or I wouldn't have upgraded) any custom ways around this with new roms?

ATT i777 here

 

[dimoochka]

Coming from omnirom 4.4.4 with TWRP, safe or no? There's a newer thread by Lanchon... my eMMC chip is VYL00M Firmware revision 19 (which can have superbrick bug?) ugh... Typically.... I softbrick my phone a few days til I sort things out when upgrading from GB>ICS>JB>kitkat (kitkat softbricked me)

All this partitioning stuff has me a bit sketched, but I hate how kitkat disabled USB mass storage (without me knowing or I wouldn't have upgraded) any custom ways around this with new roms?

ATT i777 here

The official builds of CM11 and CM12.1 are safe to use with the i777. So are my unofficial builds (that don't include TWRP). Lanchon's kernels (with TWRP included) are safe to use as well. I highly recommend using one of Lanchon's modern kernels with whatever ROM you end up installing (they are basically stock kernels that contain bug fixes and are TRIM enabled). TRIM functionality is really essential to maintain good performance on this device (especially considering the i777 is now a few years old and runs a lot of current apps sluggishly).

I have an S959G (slight variation of the i777 - ROMs are interchangeable between these two models) with VYL00Mx19. I used @Lanchon's i777 kernels for years without a device superbrick. My understanding is that the superbrick bug basically occurred under one type of firmware TRIM command called Secure Erase. As far as I know, secure erase still remains bugged and dangerous, and for this reason is NOT used. Lanchon's TRIM kernels enable regular (unsecure) erase that is understood to be safe and still gives you the benefit of TRIM .

 

[Edgarhighmen]

The official builds of CM11 and CM12.1 are safe to use with the i777. So are my unofficial builds (that don't include TWRP). Lanchon's kernels (with TWRP included) are safe to use as well. I highly recommend using one of Lanchon's modern kernels with whatever ROM you end up installing (they are basically stock kernels that contain bug fixes and are TRIM enabled). TRIM functionality is really essential to maintain good performance on this device (especially considering the i777 is now a few years old and runs a lot of current apps sluggishly).

I have an S959G (slight variation of the i777 - ROMs are interchangeable between these two models) with VYL00Mx19. I used @Lanchon's i777 kernels for years without a device superbrick. My understanding is that the superbrick bug basically occurred under one type of firmware TRIM command called Secure Erase. As far as I know, secure erase still remains bugged and dangerous, and for this reason is NOT used. Lanchon's TRIM kernels enable regular (unsecure) erase that is understood to be safe and still gives you the benefit of TRIM .

Thanks dimoochka, i'm probably going to give it a go this weekend.

 

[Rhaegon]

Before I found this thread nothing worked; I tried 11,12 and 13 from other post and had weird things happen, 1st I lost my CWM 6.0.51 screen and was stuck with CM boot creen. 2nd E: failed to verify whole-file signature. 3rd it said I couldn't flash because I was on a i9100!? I think my device is possessed ... I have had issues with everything but cm-11-20150901-UNOFFICIAL-i9100 from your link, somehow this one worked! Thank you for posting this! I was about to buy a new phone :good:

 

[dimoochka]

Before I found this thread nothing worked; I tried 11,12 and 13 from other post and had weird things happen, 1st I lost my CWM 6.0.51 screen and was stuck with CM boot creen. 2nd E: failed to verify whole-file signature. 3rd it said I couldn't flash because I was on a i9100!? I think my device is possessed ... I have had issues with everything but cm-11-20150901-UNOFFICIAL-i9100 from your link, somehow this one worked! Thank you for posting this! I was about to buy a new phone :good:

Glad this helped! Just so you're aware I haven't rebuilt this ROM for a good 9 months (and I am not even sure if the CM team is still patching old bugs in versions 11/12). If you're unable to get CM13 on the i777, I would definitely suggest buying a newer device for the sake of security. Nexus devices are basically the only option I'm aware of here since none of the other manufacturers actively maintain their ROMs. I retired my i777 in leiu of a Nexus 5X about 6 months ago.

Best of luck!