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Question: COULD NOT CALL AFTER UPDATE to OS10.3.3

Hello Apple support,

I have an iPhone 5 been using for a while and now I could not use after I updated to

OS 10.3.3, when people called me they only heard voicemail no ringing at all, when

I call out I have to wait for 20 sec. to hear other phone to ring. I don't know what

when wrong ? Can I downgrade the OS or throw the apple phone away.

Please give me a real good advice Thank you very much.

iPhone 5, iOS 10.3.3

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Mar 2, 2018 12:48 PM in response to thientam116921 In response to thientam116921

Hello thientam116921,


Thanks for asking the Apple Support Communities for help with your iPhone and the trouble with calls since the last update. Since this started after an update, I recommend verifying if your device needs an update to the carrier settings.


This article will help: Update your carrier settings on your iPhone or iPad - Apple Support


Thanks and have a wonderful day.

Mar 2, 2018 12:48 PM

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Question: COULD NOT CALL AFTER UPDATE to OS10.3.3