Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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iPhone 6 shows 4G but no cellular data

I've got an iPhone 6 that shows 4G up top but will not connect to cellular data. Phone calls can be made, but cannot access the internet. If connected to wifi, internet can be accessed.

Background info:

Screen replacement previously done on this phone. Phone has been working fine for few months. This issue occurred right around the same time that plan was changed with ATT. The phone used to show LTE but now shows 4G up top. AT&T says it is nothing on their end.

Any ideas??

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Deck the Halls
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2 Answers

Chosen Solution

Sounds like a provisioning problem. Go to Settings > General > Reset > tap "Reset Network Settings". The phone will automatically restart. Let me know if this solves your issue.

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Unfortunately that did not work. Any other ideas?

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What does it say on Settings > General > Network Status? Hopefully not 'Phone not allowed.' Have you tried another sim card to test cellular data from sim?

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I'm fairly certain it's the SIM card then. If AT&T is confident they have entered the correct information ,and resetting network settings did not work... Try a different SIM card or purchase a new one.

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Ben, I do not show a "network status" under settings > general

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Christopher, SIM has been replaced by ATT since problem started to occur.

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I just had a similar issue with my iPhone 6, searching and no service most of the time and if I get a signal eventually it only shows 3G (it should be 4G) and there is no data coming trough (works fine on WiFi). What I did is I replaced QFE1100 (the signal power ic) which was corroded due to water damage and now my phone works fine, I have 4G and I have SIM data. Hope this helps someone :)

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