Sim not detected
After switch on my device network is there. But once going to use any app on the device, network is not detecting.
iPhone 12 mini, iOS 15
Question marked as
Try first to optimize the range of the mobile network, read this Apple article:
If you see No Service or Searching on your iPhone or iPad
If you see No Service or Searching on your iPhone or iPad - Apple Support
- Contact your carrier.
- If your carrier confirms that there's no issue with your account or network, but you still can't connect to a cellular network, contact Apple Support.
See these Apple articles below:
Manually update your carrier settings on your iPhone or iPad
Manually update your carrier settings on your iPhone or iPad - Apple Support
Update your network provider settings manually on your iPhone or iPad
Update your network provider settings manually on your iPhone or iPad – Apple Support (UK)
How to unlock your iPhone for use with a different carrier
How to unlock your iPhone for use with a different carrier - Apple Support
- Apple can't unlock your iPhone for use with a different carrier. Only your carrier can unlock your iPhone.