bootloader is the component or code in the operating system that is executed before the start of any android device. A locked bootloader device would not allow you to modify that bootloader and thus you are stuck with using (booting) the same operating system 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.
In this article you will learn how You can unlock bootloader on your Vivo Y31 without obtaining the permission from manufactures.
Note:
- before using the tool Read all device partitions
- all userdata will be erased Make a backup of userdata and move it to PC or any other drive
- issue after unlock: fingerprint (Solution available), No Readback via EDL, No fastboot boot .img’
- work after unlock: flashing via fastboot, EDL via Fastboot no More test Point
Download Links:
- Vivo QCOM Bootloader unlocker V3: Download
Steps to unlock bootloader on Vivo Y31 (QCOM):
- Download Vivo QCOM Bootloader unlocker V3 & extract it
- Install adb fastboot driver on your computer
- on Phone enable usb debugging and OEM unlock from developers options
- connect Phone in fastboot mod and Click ‘unlock Now‘ & wait for Result’s, done
- if any tool Related error, Open task manager and end any running adb.exe or fastboot.exe process.