bootloader聽is the聽component or code聽in the operating system that is executed before the start of any android device. A locked聽bootloader聽device would not allow you to modify that bootloader and thus you are stuck with using (booting) the聽same operating system聽that the device Originally came with. once you unlock the bootloader on your device it will give you ability to Install other versions of the operating system on your Phone.
Note:
follow Instructions carefully
make a backup before process
all userdata will be erased Including Internal Storage
Download Links:
ROM2box : Download
USBDK Driver:聽Download
Mediatek Driver:聽Download
Steps to unlock bootloader on Redmi A1/ A1 Plus:
Make a full backup聽and move it safe place
Install USBDK and聽Mediatek Driver
Run聽ROM2Box.exe
Click聽Mediatek/ Firmware Reader!
Click ‘Read Full Firmware” for safety (it will take 15minut)
Once the process Started, turn Phone OFF, Now together聽Press Volume up + down key & Insert USB, Once Phone detected Immediate Release key聽(make sure your phone stable in device manager)
once done You can collect backup in out folder
disconnect device
Now to Go to聽Mediatek/Service and bootloader unlock/
Click ‘First Click Me to erase Requirement‘
again connect phone聽Press Volume up + down key & Insert USB, Once Phone detected Immediate Release key
once done
disconnect device
Click ‘unlock Method 1‘
again connect phone聽Press Volume up + down key & Insert USB, Once Phone detected Immediate Release key
once done, Go to Firmware Flasher/flash a Single Partition, Click ‘Select File‘
browse tool folder and Select聽vbmeta.img.empty, then click聽vbmeta.img
again connect phone聽Press Volume up + down key & Insert USB, Once Phone detected Immediate Release key
Success
wipe userdata from recovery or tool (your choice)
disconnect device
again connect device once charging started unplug and Switch it ON.
Note:
follow Instructions carefully to Prevent brick. have any issue聽Watch Video
for Root, Read boot.img via Firmware Reader, patch it using Magisk and then write it using firmware flasher single partition under boot partition.
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