Why does my Note5 keep telling me it can't find the SIM Card? I have removed, replaced, and rebooted the card, and the error will show up again in 10 minutes, or 10 days .............basically no pattern to it!
maybe the card's bad....remove & replace in the slot.
after replacing the card, if you get the same message, stop in to a verizon store for a new card.
Reboot the phone and put it in the microwave. DO NOT TURN MICROWAVE ON!!! It sounds really crazy, but do it. When your phone has finished booting (2 to 5 minutes) take it out. It should then attempt to reestablish a connection. If it does not do so automatically restart again, but do not put it in the microwave this time. This will force it to relearn the Verizon connection and clear any bad cache the phone may have.