General discussion

Changing provider

I have an Iphone 4S and am changing service provider.
I have never done this before with an Iphone, and believe it can be a nightmare Shocked

Any tips? I believe my sim card holds no data, and everything is on the phone.

Do I just change sim cards?



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I have the 5s

And if I change providers there are settings called "APN" settings that you change to get your data flowing again for the apps. This is not an offer to write what APN entries to use or how. That changes with the carrier but is documented widely.

I can see what some folk scream it's hard or complicated and have the change done at the carrier.

Something about your post worries me. You do backup your phone? I found iTunes to be good enough for me.

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Yes I back up using Itunes.

BUT! I have never done anything with it! I have never restored. I have no music, no videos, no nothing! only photos.

I cannot see my address book on Itunes, and do not want to link to my computer address book. So how do I check my address book, as I cannot see it?


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That's a very hard question.
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More information needed.......

Who is your current provider and which carrier do you want to use your phone on. For instance, a Verizon iPhone 4S cannot be used on At&t or T-mobile due to technology incompatibility. The Verizon iPhone 4s does not use a SIM card.

Post was last edited on October 20, 2016 5:43 AM PDT

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Should have said, this is the UK!!

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More detailed information.

The APN settings are tied to your carrier, not a country. Your carrier usually has the APN settings and how to change them on their web site.

I find some find this too hard so they just go to the carrier's support and tell them to change the settings.

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