Why does my iPad say No SIM card installed?
When I plugged in my ipad to charge a message came up that said: No SIM card installed. Is this OK?
iPad (3rd gen) Wi-Fi
Check the right and left sides of your iPad for a small hole the size of a paper clip (remove your smart cover if you have one). If you see this, then you have the wifi + cellular model. If you do, use a paper clip to remove the sim tray (or the sim removal tool that came with your iPad if you have it) as shown in the image below.
If the tray has a sim card in it, push the sim tray back in to re-seat it in the side of the iPad, then turn it on to see if the error message re-appears. If it re-appears, take it to a Verizon store and have them give you a new sim card.
If you have a sim tray but it is empty, you'll need to go to a Verizon store to get a sim card for it.