FlexUI v1.3.1 Unofficial for Samsung Galaxy A51 Android 14 GSI Update: 240315. Maintained by BDump. Changelog: Added Slim Version (2.8GB), Patches for Samsung (SoundFX, SMS, 5G). Use at your own risk, I’m not responsible for bricking your device.
Download FlexUI v1.3.1 for Galaxy A51
- Your phone must be Installed TWRP Recovery. If not, you can read How to Install Generic System Image (GSI) on Samsung Galaxy A51 – U8 Bootloader ( Recommended )
- Download FlexUI-1.3.1-ARM64-BGN-Slim.img.gz ( extract it to get img file )
- Download GrassKSU-OneUI-a51_20231215.zip
- Download DynaPatch-V2.0.zip
- Download GrapheneOS ( Apps-21.apk )
- Copy ROM OS img and GApps to SD Card (recommended)
How to Install FlexUI v1.3.1 on Samsung Galaxy A51
- Enter TWRP Recovery Mode: Turn power off; Connect phone to computer then quickly Press and hold Volume Down + Power Key, when Samsung Logo appears release all keys
- Select Wipe – Format data ( type “yes” and confirm )
- Select Wipe – Advanced wipe ( select “Dalvik, Data, Cache” ) – Swipe to wipe
- Copy image file to phone, ignore this if you have copied to SD card
- Select Install – Install Image – select FlexUI-1.3.1-ARM64-BGN-Slim.img – select “System Image” and Swipe to confirm flash ( If you can not see “system image” partition, you must install DynaPatch-V2.0.zip then reboot to recovery )
- Select Reboot – System
TroubleShooting
If you can not see “system image” partition, you must install DynaPatch-V2.0.zip then reboot to recovery and if you can not reboot to system, you must install GrassKSU-OneUI-a51_20231215.zip then reboot to system.
Rooting if necessary
- Connect Phone to Internet
- Install Magisk app and Open it. Magisk will ask to do additional setups. Let it do its job and the app will automatically reboot your device.
- Done
Install GApps if necessary
- Enter TWRP Recovery
- Select Wipe – Advanced Wipe ( select “System” ) – Repair or Change File System – Resize File System – Swipe to Resize
- Select Mount – ( select “System, Vendor” ), Back to home
- Select Install – select NikGapps-core-arm64-14-20231107-signed.zip, Swipe to confirm Flash
- Select Reboot – System
Watch this Video!
If you want to uninstall this custom ROM and back to stock ROM, just flash the stock ROM to your device. Flashing stock ROM will also uninstall TWRP Recovery and it will back to stock Android Recovery.
Notes / Warning!
- Use at your own risk, I’m not responsible for bricking your device.
- Using the incorrect file may brick your device.
- If your target device has a custom firmware flash counter, Rooting will trigger it. If you’re lucky, Triangle Away has support for your device and can be used to reset the counter.
- If you have a KNOX-enabled device, flash custom rom and Rooting will trip the KNOX WARRANTY VOID status!
- If your device storage is encrypted, Rooting will wipe your data !
- If you have locked bootloaders, flashing one of these will probably brick your device – with the exception of Nexus devices, which will usually automatically “OEM unlock” and wipe your data !
- Make sure to backup your important data before root it.