OK well moving on, I think the white wire on the ribbon cable is supposed to be pin 01, which is on the bottom right in this pucture. Most diagrams have the Pi the other way around, with the USB/eth ports facing down

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And the trace that goes to pin 01 goes to the 3.3v pin on the rfid reader, so it’s pretty easy to find

You can’t see it in this picture but there is a notch in the socket which determines which way the ribbon cable plugs in, I am just trying to make sure I don’t put it on backwards

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@LovesTha well that’s a relief, I’ll just order more boards now then

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