Huawei STK-L21M FRP Android 10 Downgrade

Huawei Y9 Prime 2019 Bypass FRP on Android 10. How to Downgrade Android 10 to 9.0.1 and remove FRP on Huawei STK-L21. Download Huawei STK-L21M Downgrade firmware. How to Safely Downgrade firmware on STK-L21.

Remember this post is for educational purposes only and not to intend for any illegal activities. Make sure to backup everything and we are not responsible for any loss do this on your own.

Huawei STK-L21 frp can not be removed by the test point. This security is only supported to downgrade the firmware and then use safe mode to bypass frp permanently. Here is the complete procedure

Huawei STK-L21M FRP Bypass


Downgrade to 9.0.1

  • First of all, Download EFT PRO and other required files.
  • Install Huawei Drivers and restart PC
  • Open EF File Extractor V5.0 and select STK-L21M 10.0.0(C185) Downgrade For FRP Bypass By EFT Pro (AOD).EF to extract
  • Open EFT PRO and select Huawei>FRP>Downgrade to reset FRP(Upgrade Mode)
  • Select STK-L21M model and add A.APP, O.APP, D.APP from the extracted folder
  • Turn off the phone and then turn on the phone in recovery mode(Volume UP+Power Button)
  • Select Upgrade mode and Start
  • It will unlock bootloader temporary and need to reboot again upgrade mode

Bypass FRP

  • After Downgrade(Flashing) Complete restart your phone in recovery mode and make Factory reset
  • After Factory Reset complete tap on “Safe Mode”
  • After completely turning on the phone restart phone once to remove safe mode watermark
  • All done!

Hasnain Siddiqui

Hasnain Siddiqui is a blog writer and Programmer. His Vision is to Make things possible for everyone.

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