How to disable the No SIM Card Installed warning in iPad when using it without SIM? I have not managed to find a way to disable the warning No Sim Card Installed while using iPad Air without sim-card. I disabled using Mobile data in all parts of settings. I have done this now in three generation of iPads unsuccessfully. The notice window looks like this 



How can you disable the warning No Sim Card in iPads?
Ask Siri to "turn off mobile data".
Worked for me on an iPad 4 with iOS 10.2.
Found in this Apple discussion.