[AT&T Samsung Galaxy S II SGH-I777] Nevuly:
[IMG="LineageOSLogo"]http://lineageos.org/images/logo.png[/IMG]

Lineage OS 14.1 for Galaxy S2​

LineageOS 14.1 is a free, community built, aftermarket firmware distribution of Android 7.x (Marshmallow), which is designed to increase performance and reliability over stock Android for your device.

Disclaimer

/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*
* Submitting bug reports on nightly builds is the leading
* cause of male impotence.
*/

LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

Supported Device

SGH-I777 (u1att)

IMPORTANT INFORMATIONS

You must virtually repartition your device, otherwise you can't install this ROM! Please see the 2nd post for more details.

Don't use Custom Pit. Or you'll get errors to install this ROM! You Must use stock Pit file!

Root is now disabled by default on Lineage OS 14.1. To enable it go to here and download addonsu and flash it on recovery.

Google is your friend.

Download ROM

Basic first time installation instructions:

Backup your data.

Download lineage-14.1-XXXXXXXX-UNOFFICIAL-u1att.zip to your sdcard

Download GApps (optional)

Reboot into download mode

Flash Resize pit in odin.

Reboot into recovery

Wipe all your data

Flash ROM from sdcard

Flash Google Apps from sdcard (optional)

Reboot and enjoy!

Freeze! Bug report!

Please use top of Bug reports menu on this thread :)

Known Bugs

Outcall mic issues.

MTP Crash.

Changelogs

2017.10.08

Merge source codes from LineageOS.

Stabilize.

Final Build.

2017.09.30

Merge source codes from LineageOS.

Virtual Repartition.

2017.07.23

Merge source codes from LineageOS.

Use Linaro GCC Toolchain 7.1.1

2017.06.07

Merge source codes from LineageOS.

Support Odin Installation for LineageOS.

Support OTA Service. (It is slowy, Because I use github release page. I try to find more better file host service.)

Add Roaster Devices: SC-02C (u1dcm)

2017.05.20

Merge source codes from LineageOS.

Remove Multiuser Service.

2017.05.06

Merge source codes from LineageOS.

2017.04.29

Merge source codes from LineageOS.

Fix mic on outgoing call. (Need for test)

Stable Release.

Weekly build release.

2017.03.05

Merge source codes from LineageOS

2017.01.29

Initial Release

Open Source

https://github.com/OnyxClover-OSRC

If you want to help me, please request your own commit to add more tweaks, fix bugs, improve source code... etc

It always open to accept your own commit. :)

Special Really Big Thanks To

Mir - Support Device. Thanks!

Special Thanks To

Lineage OS

[MENTION=5811506]gsstudios[/MENTION]

[MENTION=4141005]Lanchon[/MENTION]

[MENTION=2222292]rINanDO[/MENTION]

Donation

If you donation to me, I'll use buy new devices or buy coffee to focus my work :)

Donators

Miguel Pearson ($60)

Mir ($12)

XDA:DevDB Information

Lineage OS 14.1 Unoffical Build, ROM for the AT&T Samsung Galaxy S II SGH-I777

Contributors

CNBLACK

Source Code: https://github.com/CNBLACK-Factory

ROM OS Version: 7.x Nougat

ROM Kernel: Linux 3.0.x

Based On: Lineage OS

Version Information

Status: No Longer Updated

Stable Release Date: 2017-10-08

Created 2016-07-15

Last Updated 2018-02-01