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