Hi,
i want go back to stock rom and re-lock the bootloader.
I tried to flash the fastboot rom "lmi_eea_global_images_V12.5.1.0.RJKEUXM" via MiFlash (2018.5.28.0), but it failed because of anti rollback.
Current installed rom is xiaomi.eu weekly 21.7.28 (miui 12.6). TWRP is also installed...