SMS Service Number change
How to change SMS Message service center change in I Phone 6S Plus. I tried lot but not working. Anyone pls advise to check SMS Message service center number.
iPhone 6s Plus, iOS 15
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The SMS Message service center number depends on your carrier.
If your SIM card works properly, as soon as you insert your SIM card, the SMS Message service center number is automatically set up on the iPhone (will be activated).
Maybe the SIM card is damaged, go to your Carrier, ask for a new card, normally it is free.
Please contact your Carrier.