I received a massage to upgrade carrier, after upgradtion I am not able to view the APN setting which earlier was showing. Please advice how to resolve the problem as I am not able to use internet on my mobile with my data sim.

Hi,
I am using Qtel data sim at Doha - Qatar. I have receive a message to upgrade your carrier which I did.
Unfortunetly after upgradtion I am not able to view and edit the Cellular data setting & APN setting.
Please help me out as I am not able to access internet.

Hey Shaiju isac,
I'd take a look at the following article, it'll guide you though steps to you troubleshoot cellular data issues on your iPhone:
iPhone: Troubleshooting a cellular data connection
http://support.apple.com/kb/ts3780
Cheers,
David

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