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Hello!
At first, try to connect USB-2-UART converter to that port and connect it to PC. Open a terminal both on pi and PC and try to connect. If this doesn't work, there could be problems with using the UART in that image.
When I was faced with the same problem, I solved it by changing my image (you can try armbian). If that didn't work out, you can try to build your own linux image for pi. |
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