mi9 unlock bootloader

[CadyDesign]

Hello,
if i unlock a mi9 EEA rom bootloader and go with xiaomieu rom can i go back to stock and lock bootloader for the warranty.
If is a way, is any tutorial because i dont find anything about that.
Thanks.

 

[Kugumin]

Unlocking BL doesn't void warranty, neither installing EU ROMs

 

[MeiGuddet]

Hello,
if i unlock a mi9 EEA rom bootloader and go with xiaomieu rom can i go back to stock and lock bootloader for the warranty.
If is a way, is any tutorial because i dont find anything about that.
Thanks.

If you flash an original fastboot ROM with Xiaomiflash-tool and choose option "clean all and lock", it will relock your bootlader again and replace TWRP with stock recovery.

 

[CadyDesign]

Thanks, one more question...if i go to to xiaomi.eu rom can use my ing homebank account and nfc payment?

 

[MeiGuddet]

Thanks, one more question...if i go to to xiaomi.eu rom can use my ing homebank account and nfc payment?

As far as I know yes, SafetyNet check is ok. With NFC there are some problems from time to time, depends on device. You need to check the device specific threads of the forum to get further information.