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D
DDS
Associate II
July 19, 2025
Question

ST link V2 is not working after updating the firmware

  • July 19, 2025
  • 2 replies
  • 249 views

Hi,

I am using the ST link V2 debugger and i have updated the firmware using stm32 programmer software and used the stsw-link009 and when i tried connecting it  shows me some below errors. After updating the firmware it worked for few moments and then  it suddenly stopped.

 
 

image (3).png

Thank You

Deekshitha.

2 replies

Andrew Neil
Andrew Neil
Super User
July 19, 2025

Your target has no power:

AndrewNeil_0-1752915229152.png

 

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.
Tesla DeLorean
Tesla DeLorean
Guru
July 19, 2025

Check Pin 1 or 2 of the 20-pin JTAG Header, the board you're connecting too should present 3.3V, check your ground connections also.

Show the setup here, what's connected to what?

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