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Error in initializing ST-LINK device

Mathan-Mukesh
Associate II

Hello everyone i had today while working with the NUCLEO H753ZI board and when i try to upload the code i had faced this error message when i try to connect with the cube programmer i faced this error and my LD6 pin is glowing with low intensity can you please tell me why i facing this issue whethere this could be any short problem or anything else

Screenshot (5).png

 

WhatsApp Image 2025-11-18 at 8.00.21 PM.jpeg

2 REPLIES 2
TDK
Super User

Probably you ran into this:

How to unbrick an STM32H7 after setting the wrong ... - STMicroelectronics Community

 

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mfgkw
Senior II

Or:

 

UM2407 says LD6 glows lit when an overcurrent happens (7.4.1 Power supply from ST-Link-V3E USB connector).

Do you consume too much power somewhere?

 

It is hard to tell from the 2nd pic. Is JP2 1-2 (STLINK) closed?