Have had exactly the same problem. Bought a replacement usb board of aliexpress - Gldron Store. On installing the board, microphone doesn't work, on reinstalling the old board the microphone again works. Have now just soldered a new usb socket into old board to fix original problem. As a side note I will not buy off this seller, no help, didn't want to recognise the usb board was the problem.
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Have had exactly the same problem. Bought a replacement usb board of aliexpress - Gldron Store. On installing the board, microphone doesn't work, on reinstalling the old board the microphone again works. Have now just soldered a new usb socket into old board to fix original problem. The board was correct in shape and connections. As a side note I will not buy off this seller, no help, didn't want to recognise the usb board was the problem.
Have had exactly the same problem. Bought a replacement usb board of aliexpress - Gldron Store. On installing the board, microphone doesn't work, on reinstalling the old board the microphone again works. Have now just soldered a new usb socket into old board to fix original problem. As a side note I will not buy off this seller, no help, didn't want to recognise the usb board was the problem.