I have set flash read protection --Level 1 - on chip STM32G431CBU6 Then I turn off this protection (set level 0). But after that I see zeros (not FF) in all flash and I can't to full erase chip

[SGlag.1]

Fixed the problem. The ST company is silent because the STlink utility does not normally work with the G4 series microcontrollers. It destroys the microcontroller. To solve the problem, I filled in the values ​​as in the picture and gave an entry.

[Tesla DeLorean · Accepted solution]

The ST-LINK Utilities have been deprecated for several years.