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nucleo-WL33CC1 bricked?

DirkH
Associate II

‎2026-05-15 6:32 AM

I have a Nucleo-WL33CC1 board which has been working fine, but after starting to work on a DEEP SLEEP implementation I can not connect any longer using SWD neither through Crossworks IDE nor CubeProgrammer. Any possibility to unbrick the board?

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2 REPLIES 2
Andrew Neil
Super User

‎2026-05-15 6:48 AM

@DirkH wrote:

after starting to work on a DEEP SLEEP implementation 

So are you disabling the SWD pins? Connecting under hardware reset should work

Have you adjusted any board links/jumpers/solder bridges?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
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DirkH
Associate II
In response to Andrew Neil

‎2026-05-15 7:11 AM

No, I have not changed any links/jumpers/solder bridges. I forgot to set PWR_CR2_DBGRET bit. I tried to connect CubeProgrammer in several ways:

Pushing RESET button before connecting tyrying Mode:Under reset and Reset mode:Hardware reset in the settings

Trying a jumper cable from CN3.7 to CN3.16 to pull BOOT0 high

But I can not get any connection. ST LINK and Board are still detected but after that Error:unable to detect core ID

 

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