AospExtended v9.0 UNOFFICIAL for Redmi 3S Android 12 Update: 220106

February 19, 2022 | By androidhowto@youtube | Filed in: Custom ROM.

How to install AospExtended v9.0 UNOFFICIAL for Redmi 3S Android 12 Update: 220106. Maintained By : @Sairam60. Changelog: Fixed app info force close, Fixed wifi/hotspot issues, Added FM app, Added core gapps variant, Enable wallpaper zoom again. Use at your own risk, I’m not responsible for bricking your device.

Download AospExtended v9.0 for Redmi 3S

  1. Your phone must be Installed Custom Recovery. If not, you can read How to Install TWRP on Redmi 3S
  2. Download AospExtended-v9.0-land-UNOFFICIAL-20220106-1619.zip
  3. Download BiTGApps-arm64-12.0.0-R44_signed.zip ( if necessary )
  4. Copy ROM to SD Card ( Recommended )

TIPS: To Avoid fail when  flashing ROM

Extract the ROM, go to folder “\META-INF\com\google\android”.  Use notepad++ to edit file “updater-script” and remove this line below:

assert(getprop(“ro.product.device”) == “land” || getprop(“ro.build.product”) == “land” || abort(“E3004: This package is for device: land; this device is ” + getprop(“ro.product.device”) + “.”););

then Save it.  Then compress it to zip file.

Install Instructions AospExtended v9.0 for Redmi 3S

  1. If you come from Stock ROM: Enter TWRP recovery:  Turn Power off, Press and hold Volume Up + Power key for a while, when yellow menu screen appears select Recovery on the next screen select OK, you should in TWRP recovery
  2. If you come from custom ROM: Enter TWRP recovery: Turn power off, Press and hold volume UP + volume DOWN + Power Key together, when Mi logo appears release Power key only and keep pressing volume keys until TWRP recovery appears.
  3. Select Wipe – Format Data – type “yes” and confirm
  4. Select Wipe – Advanced ( Dalvik, Cache, Data, System ), Swipe to wipe
  5. Select Install – select AospExtended-v9.0-land-UNOFFICIAL-20220106-1619.zip, Swipe to confirm Flash
  6. Select Reboot – System

How to Install GApps ( if necessary )

  • Enter TWRP Recovery Mode: Turn Power off, Press and Hold Volume Up + Power key, When POCO logo appears release Power key only, keep pressing Volume Up until TWRP Recovery appears.
  • Select Install – select BiTGApps-arm64-12.0.0-R44_signed.zip, Swipe to confirm Flash
  • Select Reboot – System

How to Root ( if necessary )

  • Enter TWRP Recovery Mode: Turn Power off, Press and Hold Volume Up + Power key, When POCO logo appears release Power key only, keep pressing Volume Up until TWRP Recovery appears.
  • Install Magisk-v23.0.zip
  • Reboot to System
  • 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!

AospExtended v9.0 UNOFFICIAL for Redmi 3S Android 12 Update: 220106

Enter TWRP Recovery

You can enter TWRP recovery with 2 methods: via adb command by type “adb reboot recovery” and by pressing keys combinations ( Turn power off, press and hold volume up + Power key, when POCO logo appears release power key, keep pressing volume until TWRP recovery appears )

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. Make sure to backup your important data before root it.


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