LineageOS 18.1 Unofficial 20210713 on Samsung Galaxy A50 GSI ROM

July 16, 2021 | By androidhowto@youtube | Filed in: Custom ROM.

How to Install LineageOS 18.1 Unofficial on Samsung Galaxy A50 GSI ROM. LineageOS 18.1 comes with several new features and enhancements. Update 20210713 unofficial and GAPPS does not include. LineageOS is an operating system for smartphones, tablet computers, and set-​top boxes, based on Android with mostly free and open-source software.  Use at your own risk, I’m not responsible for bricking your device.

Download and Term

  1. Your phone must be Installed Custom Recovery for Android 10. If not, you can read TWRP Recovery for Samsung Galaxy A50 SM-A505F Android 11
  2. Download lineage-18.1-20210713-UNOFFICIAL-treble_arm64_bvS.img.xz ( extract it to get img file, use 7-zip )
  3. Download A11_magisk_patch.zip
  4. Download latest open_gapps-arm64-11.0-nano-20210130-TEST.zip ( if necessary )
  5. Copy ROM OS img and GApps to SD Card (recommended)

How to Install Pixel Experience Plus on Samsung Galaxy A50:

  1. Enter TWRP Recovery Mode: Turn power off, Connect the phone with a USB cable, Press and hold Volume Up + Power Key until TWRP Recovery Mode Appears.
  2. Select Wipe – Format data ( type “yes” and confirm )
  3. Select Wipe – Advanced wipe ( select “Dalvik, Cache, System” ) – Swipe to wipe
  4. Select Install – Install Image – lineage-18.1-20210713-UNOFFICIAL-treble_arm64_bvS.img – select “System Image” and Swipe to confirm flash
  5. Select Reboot – System

Install GApps if necessary

  • Enter TWRP Recovery Mode: Turn power off, Connect the phone with a USB cable, Press and hold Volume Up + Power Key until TWRP Recovery Mode Appears.
  • 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 open_gapps-arm64-11.0-nano-20210130-TEST.zip Swipe to confirm Flash
  • Select Reboot – System

Rooting if necessary

  • Enter TWRP Recovery Mode: Turn power off, Connect the phone with a USB cable, Press and hold Volume Up + Power Key until TWRP Recovery Mode Appears.
  • Install A11_magisk_patch.zip
  • Select Reboot to Recovery
  • Connect to Internet
  • Update Magisk App
  • Done

Watch this Video!

LineageOS 18.1 Unofficial 20210713 on Samsung Galaxy A50 GSI ROM
Watch this video on YouTube.

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!

  1. Use at your own risk, I’m not responsible for bricking your device.
  2. Using the incorrect file may brick your device.
  3. 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.
  4. If you have a KNOX-enabled device, flash custom rom and Rooting will trip the KNOX WARRANTY VOID status!
  5. If your device storage is encrypted, Rooting will wipe your data !
  6. 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 !
  7. Make sure to backup your important data before root it.


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