We have this printer at work, where we have to scan our card to copy/print etc.
It reads my work badge great, and the diagnostic card lights up like a christmas tree. - but no matter what direction I try, the xFD doesn’t light up at all. (nor do I manage to get a read on my xM1)
@yeka already had a few good ones, but failing those,
Is it possible to pop open the reader to see where the antenna lays.
With your Diagnostic Card, the HF antenna runs the perimeter, can you use just a little bit of the short edge to work out where the readers antenna is, so you can then focus your attention with the xFD. (it is not as precise as the xFD, but it will give you a pretty good idea.)
I think that is a good idea, If it can read a card, and a Flex but not the xM1 it will almost prove that it is an xSeries range / reader output power issue, and hopefully we can come up with a solution for you .
If it doesn’t work on the flex, it may be a very low power reader, but doesn’t sound like it.
It could be a data write issue or compatibility issue. (detects “magic” mifares )
Do you have gen1a or gen2 ?
So I cloned my workcard to the FlexM1 and tried again, and no result whatsoever
I found the brocheure for the reader on the printer, and see that it supports a whole bunch of card technologies… so my suspicion is that my workID contains both a standard mifare chip and something else as well, that the printer reads. - that the diagnostic card lights up because the reader supports mifare, but might be configured for something else
The interresting thing is: if I place the diagnostic card on top of the reader or underneath my card, it refuses to scan my card.
Next step is to clone my workID to a full sized magic card and see if that works.
Edit: on a sidenote, the reader to the door of my officebuilding is scanned fine both with my flex and glassie, - and I have a good guess on where the antenna is inside the reader; but my xFD does not light up there either. - only the diagnostic card. (the xFD works fine when holding it to my phone, so it’s not faulty)
Can I ask if your flexM1 is also a Gen 1a? If so, it might be that the reader has magic chipset detection built in, which despite the perfect clone prevents it from working. Alternatively, there’s a chance that some specific manufacturer / block 0 / non-changeable attribute is different (ATQA, SAK, PRNG type, RATS response)