Problem with error: Supported API: 3 E: Failed to clear BCB message

[irmacfa]

Hello
I have a Xiaomi Mi A1 phone
The developer option is not enabled
It is not unlocked either
Whatever I do, I can not fish.
It is not unlocked even through fast boot
There is an error in the recovery section

" Supported API: 3
E: Failed to clear BCB message: failed to fsync /dev/block/bootdevice/by-name/misc: operation not permitted"

 

[Yincen]

You have to flash rom using miflash 2019 with the latest stock rom pie, because the bootloader not unlocked use testpoint method

 

[gbussada]

I have same issue.
Did you find some fix?