Have you checked whether the slots look the same? Especially look for the small pins, there should be three in each slot. There’ve been a couple of people here on the forum who’ve reported they’ve broken one of their SIM slots using a nano SIM in an adapter - seems that the slots are quite delicate so I wouldn’t be surprised if there’s the odd one that is defective before it has even left the factory. More information and example pictures here.
1 Like