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Samsung Galaxy S21 Plus (Snapdragon)

Boris Li edited this page May 20, 2024 · 14 revisions

Steps to install

THIS WILL ERASE ALL YOUR DATA
AND VOID YOUR WARRENTY
AND OBVIOUSLY TRIP KNOX (NO SECURE FOLDER, NO SAMSUNG PASS)

Unlock Bootloader

  • Enable OEM unlocking and USB Debugging in developer settings
  • Turn Off Your Device
  • Boot into Download Mode (Press Up and Down Volume when Powered Off and Connect Cable to a Computer)
  • Long Press Volume Up to Unlock Bootloader

Install TWRP

Installing GSI (through TWRP)

  • Wipe data
  • Factory Reset
  • Clear Data + Cache + Dalvik/ART Cache
  • Navigate to Advanced -> Terminal; enter multidisabler
  • Reboot to Recovery Again
  • Push the img image from your computer to the device
  • Flash it as a System Image
  • Reboot

Brightness

  • Connect to a computer
  • adb shell into the device
  • su to use shell as superuser
  • Type either
    setprop persist.sys.qcom-brightness -1
    setprop persist.sys.qcom-brightness 255
    setprop persist.sys.qcom-brightness 4095
    and adjust the screen brightness on your phone

Hardware support

Component Status
Camera
Speaker / Mic
Bluetooth
WiFi
SIM / Mobile Data / Voice
Brightness *(Display is dimmed; Fix provided here)

@litszwaiboris - 2024/05/20

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