Even though my iPhone 5c shows my provider and 3G - the phone is not connected to cellular data. When opening mail for example I get the popup msg: "Could not activate cellular data network - You are not subscribed to a cellular data service.

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A few more details. This problem came up when I switched back from another SIM when travelling abroad. A clean restore solves the problem, restoring from a backup does not. What can I do to solve this while restoring from a backup?

Cellular data is on.


User profile for user: Janseeksupport

I got the solution!

Problem: use of other/foreign SIM

This solved it: Settings/General. Above "Reset" there was "Profile" - deleting this profile made the cellular data work again.


User profile for user: KiltedTim
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User profile for user: ChrisJ4203
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User profile for user: Janseeksupport

My carrier doesn"t say anything… but I also don"t think that the problem is related to my carrier.

I did Reset Network Settings.


User profile for user: Lawrence Finch
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The problem is 100% related to your carrier. Cellular data is not provisioned on your account, or has been deactivated. Calling the carrier should resolve it.


Since you report just going from a foreign carrier, did you happen to install a carrier update to the phone when using this new carrier? If you go to Settings>General>About>Carrier. Does it display the current carrier that you have a SIM installed for, or the foreign carrier you were using? This could explain it, and restoring from the backup is putting that foreign carrier file back in. Try going to Settings>General>Reset>Reset All Settings. If that does not do it, then you are going to have to restore as new and sync your data back manually if your carrier cannot correct the issue. They should be able to push the carrier back to your phone if necessary.


But why does it work instantly when I restore my iPhone? This is what makes me think that it isn"t related to my carrier.


Hi chris,

just saw your reply.

I did install a carrier update when using this new/foreign one

in Settings>General>About>Carrier it shows the correct carrier.

How can I sync my data back manually?

thx!


Either via iTunes or iCloud, depending on what you sync your data to. I"m talking about wherever you sync your calendar, contacts, other data, and then music and apps through iTunes.


can I sync back any settings? Or do I have to set up everything again? This is so lame. Now I have to reenter all my passwords, my email-accounts, rearrange my apps, … I really can"t believe that changing a SIM would cost me so much precious time… this *****. But thanks for your help.


You can try restoring the backup. If that breaks it then there is no other option. You probably backed it up while on the other network, so the carrier settings were in the backup and get restored when you restore the backup. You should still be able to update the carrier settings with your "home" carrier; I"m surprised that didn"t work. To do that (if you haven"t already) go to Settings/General/About and tap on the carrier name.


I got the solution!

Problem: use of other/foreign SIM

This solved it: Settings/General. Above "Reset" there was "Profile" - deleting this profile made the cellular data work again.


That"s quite unusual, a profile installed by a carrier. I"d be worried about what that profile did. For example, did it steal data from your phone, or monitor your communications? Profiles have access to data on the phone that apps and normal carrier settings do not.

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I agree with Lawrence. What was the exact name of this profile? Supported carriers do not install profiles, just carrier updates. I"d be concerned as well.


User profile for user: Janseeksupport

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