bootloader code or Unlock Honor play
 

Hi, I tried to unlock my "Honor Play" phone several times but I could not and I received a "current security patch not supported" error.
I tested it several times with different ROMs and even downgraded the Android version to 8, but again I got the same error.

Please guide me what can I do to succeed?

Doesn't seem that you are using correct method: https://hcu-client.com/huawei-bootlo...via-testpoint/