Sim not working
Today I updated my phone after that cellular data not working.
i_harshuu_pndt Said:
"Sim not working: Today I updated my phone after that cellular data not working."
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Troubleshooting Cellular Data:
Whom to Contact:
Contact your Carrier, as they are the one who provide you with the service of Cellular.
"No Service":
I you see "No Service" on the top-left corner of your screen, go here to fix that: If you See No Service or Searching on your iPhone or iPad - Apple Support