No service

[Anonymous]

6 hours ago I got no service. Wifi ok but can't make calls. I went to a shop and got a new sim. After 2 hours I called O2 as no service and they activated the sim. Still no service so I have done a backup and restore backup. Still no service?

[Anonymous]

I have another iPhone and that works ok. I have tried to call the phone and it goes to voicemail.

[Anonymous]

As you have now activated the sim have you rebooted the phone a few times to get it to register on the network?

[MI5]

Is the other iPhone on o2 also?
If so, it sounds like your other phone went faulty or is barred.

[Cleoriff]

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@MI5 wrote:
Is the other iPhone on o2 also?
If so, it sounds like your other phone went faulty or is barred.

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Obviously not a network problem then if both phones are on O2?

[Anonymous]

Is the iPhone that isn't working one you have acquired recently? Perhaps from eBay or similar?

[Anonymous]

Take the sim out, wipe it with a dry cloth then turn the phone back on again or if you tried everything, try a full restore on the iPhone via iTunes

[Anonymous]

Hi

Did they say they've performed the sim swap for you in the shop which moves your tariff and number to the new SIM card ?

It can occasionally take up to 24 hours for the connection to network to settle.

If it has not connected after that then speak to O2 Customer Services. 202 for Contract. 4445 for PAYG. 8002 for Business. http://www.o2.co.uk/contactus to see if the sim swap has failed.

Try Settings - General - Reset - Reset Network Settings.

[Anonymous]

Both iPhones are on O2. The problem phone has been working fine for the last 3 years. I have tried rebooting. O2 unlocked it this morning for me but 2 advisors have said that this is not the problem

[Anonymous]

Ref Unlocking-> Have you completed the unlock by inserting a non O2 uk network SIM card.