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fernjk

Tutor

 • 

3 Messages

Fri, Nov 28, 2014 1:16 AM

My iphone 6 plus could not activate cellular data network

Hello,I cannot connect to internet with my iphone 6. I have this message ''could not activate cellular data network '' when I using safari. its won't work. I already reset network , restore or anything (http://support.apple.com/en-us/HT201415) . But its shown "at&t 4g" on the top of the screen and I can makes call and send text messages. 

 

image1.PNG

 

Do I have to go ATT store to change sim card?

 

Please help me!

 

 

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Official Solution

Community Support

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15.2K Messages

4 years ago

Hello Community!

 

We have seen quite a few threads out there over the years regarding customers getting an error "Could not activate cellular data network" or "You are not subscribed to a cellular data service".  The good news is that this is not a problem with your phone, or the network!

 

In most cases it is a simple matter of updating your device information with the network, and you can be up and running in no time.

 

Key factors to resolve this error:

  • Typically occurs on an iPhone when the previous phone was a non-iPhone
  • Must be on an active data plan with AT&T
  • Must have your IMEI updated on your account to the device you are using (if you recently switched phones this could be the issue)

If after confirming that you have the correct device updated, and are on a data plan by going to myAT&T, you can contact us via Private Message for additional assistance.

 

Thanks for all the great feedback and conversation!

 

Tim - Community Specialist

AT&T Customer Care

Need help with an account specific question?  Post a new question here on the forums by clicking the "Ask a Question" button.
For additional support, please visit us at our AT&T services hub.
Follow us on: Twitter @ATTHelp and @DIRECTVService

*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

Contributor

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1 Message

6 years ago

I am having this same problem. My phone is basicly useless unless I am connected to wifi. I can't get on safari, send/receive texts, or do anything that needs an Internet connection.
fernjk

Tutor

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3 Messages

6 years ago

did your problem solve now? how did you do? 

kanep31

Tutor

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6 Messages

6 years ago

I have the same problem too! AT&T technical support can do nothing about it!! Wasted two hours on the phone
lizdance40

ACE - Sage

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76.9K Messages

6 years ago

If your phone connects with wifi, but not cellular, you have a bad SIM card. Go to an AT&T store and get a replacement.

🐾 I don’t work for AT&T or any carrier. Never have, never will. My replies are based on experience and reading content available on the website. If you posted personal information, please edit and remove.

Award for Community Excellence 2019 Achiever*
*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
kanep31

Tutor

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6 Messages

6 years ago

it worked perfectly fine with my old 5S! Data only not working with my new 6 plus

lizdance40

ACE - Sage

 • 

76.9K Messages

6 years ago

Was the other SIM card from your old phone also from AT&T?
It may be the wrong size. Or installed wrong. Get a new sim from AT&T.

🐾 I don’t work for AT&T or any carrier. Never have, never will. My replies are based on experience and reading content available on the website. If you posted personal information, please edit and remove.

Award for Community Excellence 2019 Achiever*
*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
kanep31

Tutor

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6 Messages

6 years ago

It was AT&T problem
kanep31

Tutor

 • 

6 Messages

6 years ago

It was AT&T problem. Spent 4 hours on the phone and finally fixed it. Just simply tell them to reset your registration for you new device!!
fernjk

Tutor

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3 Messages

6 years ago

I'm already contact AT&T customer service live chat and everything work fine now.

Don't need to change sim card.Just told them to fix IMEI your new device and sim card. 

 

kanep31

Tutor

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6 Messages

6 years ago

Remember to turn off cellular data while they are doing or else IT IS NOT GOING TO WORK

JeffWeHo

Tutor

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5 Messages

6 years ago

HI,

 

I had this EXACT problem about 2 weeks after I received my iPhone 6. 

 

We had contacted ATT regarding another matter and as ALWAYS they try to switch your plans because anytime they do they get a commission. I was told I would get more data and save $35/month.  They flat out lie to you to get that commission. We stopped getting unlimited data and they charged us $50/mo more.  They do this consistently. Crooks!

 

After spending 3 hours on the phone they changed my plan back with a big mistake. They thought I had and Iphone 4s and an Iphone 5s (my old plan). I called 2 weeks later when I noticed the issue and  after 2 hours with Apple and 3 hours with ATT they said they would get back to me.  I got a text 10 minutes later from ATT asking me to call them.

 

I called them and they said when they changed my plan back they made a mistake. The iPhone 6 will not work on the same data plans as all other iPhones. I don't know the technical details but that was it. They pressed a button and all worked fine.

 

So ATT made a mistake, I spent almost 14 hours trying to resolve it and I have had it with ATT.

 

Never again~

Contributor

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1 Message

5 years ago

I had the same problem when I got my wife an iPhone 6. Somehow when they were doing the changeover from her 4S they forgot to transfer the data plan.

Technical Support fixed it for us quickly and painlessly over the phone.

Contributor

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1 Message

5 years ago

I fixed my problem by creating a new APN for my iPhone 5, because I moved to Fido before a week. I found a online guide about the APN creating and it worked for me.

 

Source: www.unlockboot.com/2015/11/fix-could-not-activate-cellular-data.html

Contributor

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1 Message

4 years ago

Thanks very much, problem solved after I used your link to create an APN. I have iPhone 6s Plus. I used it over cricket & h2o wireless with no problem. Just transferred to at&t gophone but could not connect to the Internet. Spent countless hours with at&t technical team, advanced tech team with no avail. The team escalated the situation and gave me a ticket to call me within 5 days. Was impatient after 33 hrs with no call, I asked the question on google & I bumped into your simple quick fix & boom my data is working perfectly.

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