How to decrypt MaiMang10（CHC-AN10）screen pin?

[RockHu2012]

MaiMang10(MT6853，Android10)
I have use command extract full flash，and all the keys including RPMBKEY、RPMBKEY2、FDEKEY etc.
Then I build an configuration files and replace the keys, runing Oxydetective to decrypt the screen pin.
But it doesn't found out pin.Perhaps it is because of this device vendor is Huawei，the chipest is different?
Is there anyone can help me?
Thanks

[RockHu2012]

[bkerler]

These keys are only used for storage and have nothing to do with user pin/password. The user pin/password is encrypted using the trustzone and the android ecosystem.

If you have legally obtained oxygen forensic (which I hope you have), please do ask their support as we have no connection to their software (except that they obviously reuse my code violating my open source license which forbids commercial usage).