STM32L562-DK STMCubeProgrammer-Error:Initializing the option bytes failed Error: Uploading option bytes bank:0 failed.. How to recover the board?

[Pkhot.1]

I am following the very first step with STM32L562E-DK, to run a .bat file ..

But I received error: Initializing the option bytes failed

Same in CLI too..

How can I recover my board? any hardware reset?

 

[ChahinezC]

Hello @PAVAN KUMAR KOTIKE,

I recommend you following the steps mentioned in the "​9.1.2 TZEN/RDP regression with a boot from RSS" section of the Arm TrustZone features for STM32L5 and STM32U5 Series application note.

Regards,

Chahinez.

[Istillaga]

Hello,

I have the same problem, did you manage to solve the problem? If you could tell me what you did, you could really help me out.

[Amit_Korgaonkar]

Hello,
Did anybody managed to solve this?
any solution for this or any idea about doing this right , could really be a big help to us.

[sofiapaiva]

Hi @Amit_Korgaonkar,

It may be a little late, but since there has been no reply in this thread, I thought my reply would help other people who come to this.

I had a NUCLEO-L552ZE-Q with a similar problem, Trustzone was enabled as well as RPD, and couldn't connect to it normally through the STM32CubeProgrammer with the same error as in the origin of this thread. I've followed @ChahinezC advice and looked at the document/section suggested. It worked, on the NUCLEO I think it's a little easier to set the BOOT0 pin to high on reset, but that did the trick. I was able to change RDP to Level 0 (option 0xAA) and disable TZEN option on User Configuration, reverting my STM32L55.