Hi, i am facing a very annoying problem, i am using STM32H755ZI-Q 144 NUCLEO KIT, when i connect it get STLink, but not receiving chip, can anyone help me, thanks thank you very much

[Tesla DeLorean]

What does the error message actually say? Target Not Found?

Did you get the LDO/SMPS settings wrong?

Try power cycling the board with BOOT0 HIGH, see if it will connect, and then erase the broken user code.​

[NGUYEN-VAN NHI]

Yes, the real error is "Target not found". I am trying to try the way you suggested. Thank you.

[Andrew Neil]

Please don't put the entire post in the Title - see:

https://community.st.com/s/article/How-to-Post

Limit the title to ~ 70 characters.

#KeepTitleShort

[NGUYEN-VAN NHI]

Oh my bad mistake, thanks for the reminder.