Why would you want to update the software Xiaomi Redmi 4 Prime?
1 When your phone is completely dead, then whenever you change the EMMC of your mobile, then you need this file.
2 With the help of this file, you can restore your phone
3 If the network problem comes after the file is written, then you can repair your IMEI number by using the ENG QCN file.
Keep these things in mind while writing flash or lock file Xiaomi Redmi 4 Prime
1 The battery of the phone must be at least 30% charged
Because if while the flashing process continues, if the battery is discharged, then your phone can be turned off.
2 Use the same model file as your model
Because if this is not the case, there may be an error in the tool or your phone may be bricked.
3 Plug the USB cable into the back of your computer CPU
so that the power supply works properly
4 If you use a laptop, then keep the battery charge of the laptop
5 If your phone still has a warranty then give it to the service center
Now let's know how to flash Xiaomi Redmi 4 Prime
Download all files from the above links And
Extract all files, Tool, and Driver
Install Qualcomm USB Driver
Install Qualcomm Flash Tool
Open the Qfill tool Then Select
Select prog emmc File
Rawprogram and patch0 also Select
Now OFF Mobile Then Press and hold Both Volume Key Then Insert USB Cable
Or Most Important If Not Connect to Qualcomm Port
Open Back Cover OF Your Smart Phone Then Search EDL Point On Google
Now Sort Both EDL Points Then Connect USB
After Connect Qualcomm Port Now Click Start Button
Now Wait Until Pass