Why the NUCLEO-G431RB start programmer ,Warning:the core is locked up

[Jzhan.81]

I want to konw how to unlock the flash,Thanks!

[Imen.D]

Hello @Jzhan.8​ ,

Did you check with other boards ? Maybe the problem is with your board !

Otherwise, after choose AA value in Read Out Protection option, try select PCROP and uncheck the box, then click apply.

Please keep me informed about your update on this issue.

Imen