• After more than 15 years covering everything Apple, it’s with a heavy heart we announce that we will no longer be publishing new content on iMore and the iMore forums will be closing as of November 1st, 2024.

iMore

Ipad air cannot connect with cellular network

My Ipad Air lost cellular network connection while in service
Since then, cellular network connection cannot be maid.
The message on the display says:"SIM CARD NOT INSTALLED"
What action should i take?