Galaxy S2 LineageOS 15 – Download and installation Guide

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September 3, 2024 at 12:56 PM #25408
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Android Oreo 8.0 ROM, LineageOS 15 for Galaxy S2 has now arrived via a development build. If you want the OFFICIAL LineageOS update or some more Android Oreo ROMs then stay tuned to the LineageOS 15 ROMs page or the AOSP Android Oreo ROMs list page. This LineageOS 15 for Galaxy S2 (i9100) is brought to you by developer rINanDO.
DONATION TO DEVELOPER:
No donation link found for rINanDO.
DISCLAIMER:
THIS IS AN INITIAL BUILD AND HIGHLY UNSTABLE. HAVE A BACKUP BEFORE FLASHING THIS ROM AND TRY AT YOUR OWN RISK. Installing a custom ROM on a Galaxy S2 (i9100) requires an unlocked bootloader on the Galaxy S2 (i9100), which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup all data on the phone. You are the only person doing changes to your phone and I cannot be held responsible for the mistakes done by you.
Content structure:
Status of Samsung LineageOS 15 for Galaxy S2 Oreo 8 ROM:
WHAT’S WORKING:
– Unknown
KNOWN ISSUES:
– Unknown

REQUIRED LINKS AND FILES FOR LineageOS 15 for Galaxy S2 OREO CUSTOM ROM:
- TWRP recovery download for Galaxy S2 (i9100)
  – Here is theTWRP update guide for the Galaxy S2 (i9100).
- ROM Download link of LineageOS 15 for Galaxy S2
- ROM Download link of LineageOS 15 for Galaxy S2
- LineageOS 15 GApps download link for LineageOS 15 for Galaxy S2 Oreo 8.0 ROM (Download the stock ARM32 GApps)
Root binary is NOT inbuilt in LineageOS 15, so you may need a separate SuperSu package or LineageOS su binary to install to gain ROOT access. Here is LineageOS Rooting guide
If there is no in-built ROOT or it does not work for some reason then you can try SuperSU rooting guide to enable ROOT access.
HOW TO INSTALL/DOWNLOAD/FLASH/UPDATE LineageOS 15 FOR Galaxy S2 OREO CUSTOM ROM:
1. Follow this if you are flashing LineageOS 15 for Galaxy S2 for the first time, or coming from another ROM:
  Points to NOTE:
  – Try to avoid restoring apps backup using Titanium Backup. It may break things up.
  – Don’t restore system data using Titanium Backup! It will definitely break the current installation.
  – It is also discouraged to Restoring Apps + Data using Titanium Backup.
  - Boot into Recovery. Make sure to have a Custom recovery like CWM or TWRP or any other custom recovery. If not then follow the Custom Recovery Installation Guide for Galaxy S2 (it’s a generic guide which will work for TWRP as well as CWM recovery or any other recovery)
  - Wipe data factory reset, Cache partition, Dalvik Cache and Format the System partition.
    – Here is a guide explaining how to wipe data using TWRP recovery.
    This will delete all your data on your phone. You may consider complete backup of your phone data or take a NANDROID backup of the current ROM
    – How to backup all data on your Android Device
    – how to take NANDROID backup using TWRP recovery
  - Download and Copy the LineageOS 15 GApps and LineageOS 15 for Galaxy S2 Oreo ROM ZIP file to your phone.
  - First flash the LineageOS 15 for Galaxy S2 Oreo ROM ZIP from device. Then flash the GApps for LineageOS 15 zip from your device memory.
    – Here is a post explaining how to install LineageOS
  - Then reboot into recovery (don’t skip this) and flash the Gapps for Oreo ROM package.
    – Here is a post explaining how to flash GApps using TWRP recovery.
  - Reboot and Enjoy the Oreo 8.0 LineageOS 15 ROM for Galaxy S2.
2. Upgrading from earlier version of LineageOS 15 for Galaxy S2 (i9100):
  - Copy the latest Galaxy S2 Lineage 15 ROM ZIP file to your phone.
  - Boot into Recovery.
  - Flash the latest LineageOS ROM ZIP from your phone.
    – Here is a post explaining how to install LineageOS
  - Then flash the GApps for LineageOS 15 package.
    – Here is a post explaining how to flash GApps using TWRP recovery.
  - Reboot and Enjoy
Complete the initial setup and enjoy Android Oreo 8.0 with LineageOS 15 for Galaxy S2. After the installation of LineageOS 15 for Galaxy S2 you may want to enable ROOT access on your phone and here is how you can do that:
How to Enable ROOT on LineageOS 15.
Stay tuned or Subscribe to the Galaxy S2 (i9100) LineageOS forum For other Android Oreo, Nougat ROMs, LineageOS 15 ROMs, other ROMs and all other device specific topics.

If you have any BUGs or any issues to report on this ROM then here is the dev thread for this ROM.
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