STM32F411 repair posibility

[Fleuve]

Hello,

       I've a STM32F411 board. Unfortunately, I was distract when I plug the SWD with ST-LINK. I've invert the VCC and the ground (Not really a good idea to plug VCC and GND at each opposite of 4 pin connector). Now, It's seem not working.. I mean will not connect to the board. Now, the simple question : Does it's possible to repair it?

Thanks.

Have great Christmas holiday and happy new year.

[TDK]

It depends what is fried on the board. You could power it correctly and then determine what isn't working. Possibly the 3.3V LDO is toast. Possibly the STM32F4 chip is toast. Either way, it's probably cheaper to get a new board unless you already have significant hot air rework tools and experience.

> Not really a good idea to plug VCC and GND at each opposite of 4 pin connector

The genuine ST-Link programmers have a polarized connector which makes connecting it incorrectly impossible.