Huawei STK-L21 Downgrade File For FRP Bypass

Huawei STK-L21 Downgrade File

You’ve come to the correct spot if you need the Huawei STK-L21 Downgrade File for the Huawei Y9 Prime 2019. This smartphone Kirin 710F, 4GB RAM, IPS LCD, Battery 4000mAh, attempt to install this file if you have the newest version flash tool. This may be useful if your phone’s FRP is stuck, it’s sluggish, or you’ve accidently locked yourself out of the device.

The stock ROM is the software that came with your phone. The file STK-L21 FRP Bypass file is safe and has no bugs. Fixing the FRP Google account lock on a smartphone or tablet is as easy as updating the Huawei Y9 Prime 2019 Firmware. Because there are so many ways to change Android, delay, boot loops, and soft bricks can all happen. You need to have this guide.

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Stock-ROM Value

This Stock Firmware is what you require if you have any sort of software issue problem on your device and it has to be flashed on a Huawei Y9 Prime 2019. Issues relating to the network should be fixed, as should your device’s Hang On Logo problem; you should also unroot your device and solve the system defect that caused the camera to fail. Fix your Unknown Baseband and IMEI issue, get Huawei id on your device, address the problem of having your custom binary prevented by FRP lock, get your Frp or Gmail Lock issue fixed, and much more.


  • Bypass FRP/ Google Account from your Huawei Y9 Prime 2019.
  • Fix any difficulties with the device, including any hang on logo, lag or stuttering.
  • STK-L21 C185 reset FRP downgrade firmware.
  • You may upgrade and downgrade the software on the smartphone.

Sign in to your STK-L21 using your Google account if you already have one. Your mobile device has the FRP feature activated. To disable the FRP lock, all that is required of you is to remove your Google Account. If you follow my Guide, gaining access will not be difficult at all. The factory reset protection (FRP) function is included in all of the most recent releases of Android, including Marshmallow, Nougat, Oreo, and Pie. Because each device, operating system, and version of Google’s Android has a unique method for bypassing FRP, the process is becoming more difficult. It is simple to remove the FRP from your Huawei Y9 Prime 2019 if you know the Google account ID associated with that device.


  • This will only work with the STK-L21.
  • Your battery must have at least 35 percent of its life left before you can use your smartphone.
  • You’ll need a good USB data cable and a desktop PC.
  • we recommend that readers create a full backup of the device’s Personals data.
  • Download the Update Huawei Multi-Download Tool.
  • Put the USB drivers for Huawei on your PC.

Collections of Huawei STK-L21 Downgrade File

If you’re looking for the Huawei STK-L21 FRP Bypass File, here’s a direct download link. Additionally, ensure that the USB driver is installed.

File Password:

Download LinkSoftware Details
Google DriveSTK-L21MDV EMUI10.0.0_05016NWE

How to Install Firmware on Huawei STK-L21

  • First You will need a microSD card or enough space on your device to test any Factory ROM.
  • There should be a microSD card with 8GB on hand.
  • The strength of the battery should be greater than 35%, as advised.
  • After an update, it’s possible that all customer information will be lost.
  • So, before you do the update, you should make a copy of any important files or data. If you want to make a copy of your device.
  • To get your SD card ready for flashing, extract the parts of the SDupdate_Package.tar.gz file and run the UPDATE.APP.
  • Then The main file, which has the whole operating system, is always part of the package, which we may sometimes send to you. Where can you find Huawei’s information files?
  • Then look at the list of files that are linked. Dload >STK-L21> > UPDATE.APP

I am hoping that you were able to install the Huawei STK-L21 Downgrade File successfully. We would appreciate it if you could rate this page and leave a comment. We are always interested in hearing your comments.

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