EVB NUCLEO-U575ZI-Q is not responding, when trying to run/debug. Besides that, LED6 and LED4 are red.

[bmn]

My EVB NUCLEO-U575ZI-Q is not responding. 

When trying to run/debug, I get the following message:

Target no device found

Error in initializing ST-LINK device.

Reason: No device found on target.

Besides that, LED6 and LED4 are red.

How can it be fixed? Is the board ruined?

[Javier1]

Sometimes the GDB debugger does this.

Restart your PC

[bmn]

Hi, thank you for the reply. I restarted my PC.

LED4 was yellow for a while and eventually returned to be red.

LED6 stayed red all the way.

[Mike_ST · Accepted solution]

Hello,

LD6 is on when U2 detects a fault and shuts down, i.e the board is drawing too much current (>500mA).

You may have a short-circuit somewhere.