ColtOS R v7.1 Android 11 for Samsung Galaxy A50 – Custom ROM

February 22, 2021 | By androidhowto@youtube | Filed in: Custom ROM.

How to Install ColtOS R v7.1 Android 11 on Samsung Galaxy A50. ColtOS R v7.1 comes with ROM OS Android 11 and basic feature only, Brought to you by: igors1974@sourceforge. This ROM Required: TWRP, It worked with TWRP based on OneUI 2.5 firmware. Status: ColtOS-R-v7.1-GsiTestProjects ( ARM64-AB ). Use at your own risk, I’m not responsible for bricking your device.

Download

  1. Your phone must be Installed TWRP Recovery for Android 10. If not, you can read TWRP v3.5.0 for Samsung Galaxy A50 Android 10 ( Recommended )
  2. Download ColtOS-R-v7.1-GsiTestProjects-arm64-ab-GApps.img.xz ( extract it to get img file, use 7-zip )
  3. Download latest open_gapps-arm64-11.0-nano-20210110-TEST.zip ( if necessary )
  4. Copy ROM OS img and GApps to SD Card (recommended)

How to Install DotOS v5.0.0-1 on Samsung Galaxy A50:

  1. Enter TWRP Recovery Mode: Turn power off; Press and hold Volume Up key + Power key, when samsung logo appears release power key only, keep pressing volume up until TWRP recovery appears
  2. Select Wipe – Advanced wipe ( select “Dalvik, Cache, System” ) – Swipe to wipe
  3. Copy image file to phone, ignore this if you have copied to SD card
  4. Select Install – Install Image – select ColtOS-R-v7.1-GsiTestProjects-arm64-ab-GApps.img – select “System Image” and Swipe to confirm flash
  5. Select Wipe – Format data ( type “yes” and confirm )
  6. Select Reboot – System

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 open_gapps-arm64-11.0-nano-20210110-TEST.zip Swipe to confirm Flash
  • Select Reboot – System

Watch this Video!

ColtOS R v7.1 Android 11 for Samsung Galaxy A50 - Custom 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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