I can’t make use of my data and I can’t make or receive calls why?
I can’t make use of my data or make or receive calls pleased I need help how can I make use of my cellular data
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See these Apple articles below:
If you can't make or receive calls on your iPhone
If you can't make or receive calls on your iPhone - Apple Support
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)