Maybe someone has had this problem before: My iPhone 13 mini no longer recognises my sim card. It's not the SIM, it's definitely the device itself.
What surprised me a bit is that the device doesn't register when the sim tray is used. There is no message like "no sim" or something like that. It just says "no network" at the top all the time. No matter if I plug in a sim, pull out the tray or plug in with or without a card. It also does not ask for a PIN or anything similar.
I have tried to clean the slot, but can't really get to it....
Maybe someone has an idea?