[ROM][FINAL][7.1.2][2017.10.08][U1] Lineage OS 14.1 Unofficial Build

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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.

 * 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 Devices
  • SC-02C (u1dcm)
  • GT-I9100 (u1xx)
  • GT-I9100P (u1nxx)
  • SHW-M250K (u1ktt) (Request Stock JellyBean Firmware.)
  • SHW-M250S (u1skt) (Request Stock JellyBean Firmware.)

  • You must virtually repartition your device, otherwise you can't install this ROM! Please see the 2nd post for more details.
  • Only for u1dcm, u1nxx, u1xx users: 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 ROMs
Basic first time installation instructions:
  • Backup your data.
  • Download to your sdcard
  • Download GApps (optional)
  • Reboot into download mode
  • Flash Resize pit in odin. (only for i9100, i9100p)
  • 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
  • MTP Crash.


  • Merge source codes from LineageOS.
  • Stabilize.
  • Final Build.

  • Merge source codes from LineageOS.
  • Virtual Repartition.

  • Merge source codes from LineageOS.
  • Use Linaro GCC Toolchain 7.1.1
  • only for u1ktt, u1skt: Add SamsungDoze Service (It is work partially. Because Proximity sensor not fixed yet.)

  • 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)

  • Merge source codes from LineageOS.
  • Remove Multiuser Service.

  • Merge source codes from LineageOS.
  • Removed Multi User service to fix MTP crash.

  • Merge source codes from LineageOS.
  • u1ktt & u1skt: Disable SamsungDoze service because they don't work proximity sensor well.
  • Stable Release.
  • Weekly build release.

  • Initial Release

Open Source
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 Thanks To

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

  • Miguel Pearson ($60)
  • Mir ($12)

XDA:DevDB Information
Lineage OS 14.1 Unofficial Build, ROM for the Samsung Galaxy S II

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 2016-05-18
Last Updated 2018-02-01
The Following 22 Users Say Thank You to Nevuly For This Useful Post: [ View ] Gift Nevuly Ad-Free
18th May 2016, 03:14 PM |#2  
Virtual Repartition Information and Installation Guide
After 2017.09.30 build, SGS2 applied virtual repartition.

Note: If you repartitioned your phone using a pit file, its recommended that you flash back the original unmodified pit to take full advantage of the increased space.

Download Virtual Repartition TWRP recovery

Before you begin, back up all of your internal storage!
I am not responsible for any problems with the internal repository data!

1. Make sure you have the latest OFFICIAL TWRP installed.
2. Backup your internal storage to your computer (The internal storage WILL BE ERASED)
3. In TWRP, go to Mount -> Enable MTP to access internal storage.
4. Copy the Virtual repartition recovery to your device.
5. Flash it.
6. Reboot recovery again.
7. Now, your device getting virtually repartition.
8. In TWRP, go to Wipe -> Swipe to Factory Reset.
9. In TWRP, go to Wipe -> Format Data -> type yes to format data partition.
10. In TWRP, go to Advanced Wipe -> Wipe all partition.
11. Now, Ready to install New Lineage OS!

This Virtual Repartition changed partition tables.

Now, you get 14.68 GB Data Storage.
The Following User Says Thank You to Nevuly For This Useful Post: [ View ] Gift Nevuly Ad-Free
18th May 2016, 05:26 PM |#3  
Syaani's Avatar
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Thank you!
18th May 2016, 08:49 PM |#4  
Junior Member
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Not install latest i9100 build, in twrp "/system is busy"
18th May 2016, 09:14 PM |#5  
arnab's Avatar
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Flag Nagpur
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Did u install the lzop using sudo apt install lzop ???
18th May 2016, 10:05 PM |#6  
Senior Member
Flag mawanella
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Any way fix radio on Korean galaxy s2
19th May 2016, 02:49 PM |#9  
Senior Member
Flag mawanella
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I have Korean galaxy s2 (shw-m250s) I am converted to gt-i9100 and flashed cm13 and now my phone gyro and compass sensor are not working properly any way to fix this
19th May 2016, 08:35 PM |#10  
Thanks Meter: 17
I would like to try flash this great rom to my girlfriends I9100 this weekend... The phone has never seen a custom rom before an is completly stock.
The only big question i have - and couldn't answer my self by reading through xda - is: which is the best way to resize the partitions?
Is it enough to flash the repit by lanchon??? I hope someone can help me with my decision or can give some advice!!!
Many Many Thanks in advance!!!
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