I'm trying to unlock bootloader of my redmi note 4 sd since 9 months but till now no success.I tried different mi accounts or dev/stable globle roms as well but can't able to unlock help me out...|
There are many theories that u have second hand phone or previously logged in different mi account.
but none of them mine i bout it from mi.com. but cant able to unlock it. Waited for too long from 2017.
Unlocking bootloader [error code: 20091]
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