The final SIM and IC card adapter arrived. The mini SIM footprint is correct, and the other sockets all work. Putting this into production now. Thank you all for so much testing and feedback.
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You keep coming up with so many great things! I canât wait to get this.
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This has been available for a while âunofficiallyâ, but Iâve finally got the docs posted so here we go:
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Yeah! Finally received the â4G SIM card for testingâ. This is a 3RMB (0.50cents) SIM card intended for some kind of testing. The supplier said it is blank, but will it still respond to an ATR?
Yes! It has an ATR response.
Letâs decode the ATR. Lots of stuff there.
Look at that, identified as a XLB.5G CTC Test Card. Maybe we can find a datasheet or something. The manufacturerâs website (https brokenâŚ) isnât much help, but it seems to be one of these (donât know which one).
If anyone is interested in exploring these cards further, I can pop some in the shop. Iâm still not sure what they are, but they do come in 3/4/5G and other varieties (newer Gs are more $$$).
Edit: The first time I did this I had two cards in the adapter, so the values were wrong. Updated with fresh values.
I ordered a day to soonâŚ
Private message me and Iâll send you one via stamp mail! I have 5, maybe need to keep 2.