Apple 5s shows no SIM card installed? What about the 5s display without a SIM card?

Reseat the SIM card

1. It could be a long time. Sim is loose. We can try to get it out of the SIM card and reinstall it again.

2. So we can repeat the multiple inserts several times to see if the SIM has a bad contact situation.

3. We can try restarting the phone after a few tries and we are prompted not to install the SIM card.

change another person's SIM card

Check to see if the SIM card is broken, this we can try to use a friend of the SIM card access to see it, I hope the example will bring some help to friends.

Restore network Settings

1. The most explosive method, we are in "settings"-"General"-"restore"-"Restore network Settings" Try to see if the problem can be solved oh.