AOSP 12 v400.d New Secure Variant for Samsung Galaxy A50s Android 12 GSI

December 10, 2021 | By androidhowto@youtube | Filed in: Custom ROM.

How to Install AOSP 12 v400.d New Secure Variant for Samsung Galaxy A50s Pre-Release Android 12 GSI. Brought to you by phhusson. New secure variant, with deleted su, and stuff to try to pass SafetyNet. Fixed device isn’t Play Protect certified. Use at your own risk, I’m not responsible for bricking your device.

Changelog

  • December SPL
  • (from AOSP) fix graphical glitches
  • Add alternative fix to disable audio effects that doesn’t disable all effects
  • OnePlus8 overlay
  • New secure variant, with deleted su, and stuff to try to pass SafetyNet
  • Fix radio on some devices
  • Possibly fix some key mappings
  • Fix VoLTE on Mediatek devices
  • Fixed device isn’t Play Protect certified

Download: AOSP 12 v400.d New Secure Variant for Samsung Galaxy A50s

  1. Your phone must be Installed Custom Recovery for Android 10. If not, you can read How to Install TWRP 3.5.1 on Samsung Galaxy A50s SM-A507FN Android 11
  2. Download system-squeak-arm64-ab-vndklite-gapps-secure.img.xz ( extract it to get img file, use 7-zip )
  3. Download latest BiTGApps-arm64-12.0.0-R39_signed.zip or latest ( if necessary )
  4. Download MagiskA11_PATH_fix.zip
  5. Copy ROM and GApps to SD Card (recommended)

Install Instructions: AOSP 12 v400.d New Secure Variant for Samsung Galaxy A50s

  1. Enter TWRP Recovery Mode: Turn power off, Connect the phone with a USB cable, Press and hold Volume Up + Power Key, when Galaxy Logo appears release power key only, keep pressing volume up 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 – system-squeak-arm64-ab-vndklite-gapps-secure.img – select “System Image” and Swipe to confirm flash
  5. Select Reboot – System

Install GApps 12 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 BiTGApps-arm64-12.0.0-R39_signed.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.
  • Select Install – select MagiskA11_PATH_fix.zip, Swipe to confirm Flash
  • Select Reboot to Recovery
  • 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

Watch this Video!

AOSP 12 v400.d New Secure Variant for Samsung Galaxy A50s Android 12 GSI
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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