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st-link doesn't connect my laptop to the board

lzhan.21
Associate II

‎2022-06-16 9:20 PM

0693W00000Nrxf1QAB.pngI have stm32F407 discovery board and I have downloaded and installed the ST_LINK USB driver on my laptop running window 10, but when I plug in the discovery board, the error message pops up saying the USB driver is not recognized, in the device manager, it showed unknown USB device. I tried several ways,like uninstalling the unknown USB device, updating the driver, installing the driver again. Restart the computer and plug in another USB port, nothing seems to work. It worked before, right after I soldering the header pins onto the discovery board, My laptop couldn't connect to the board. I tried a new cable today, I still have the same problem. 0693W00000Ns3YQQAZ.pngCan you help me to find a way to solve this? It's really painful to be stuck in the same place again and again. Thanks!

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11 REPLIES 11
lzhan.21
Associate II
In response to Tesla DeLorean

‎2022-06-17 11:15 AM

Thanks a lot!

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Andrew Neil
Guru
In response to lzhan.21

‎2022-06-20 2:00 AM

As @Community member​ said, that suggests you have a boot-leg/clone board - as genuine ST Discovery boards usually come with all headers fitted.

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.
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