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Old December 7th, 2012, 09:44 PM   #1 (permalink)
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Default Data Network problem after JB update on AT&T SG3

Hi all, new to phandroid.

I just updated to Jelly Bean yesterday on my SG3 on AT&T.

I am having problems with my data network, my 4G keeps dropping and is inactive more than it is working. 4G will eventually start working for about an hour then go out again. Note: I am not moving around, I am in the same place throughout all this.

Error messages I am seeing:
No signal found for mobile networks
No connection

Troubleshooting I have tried:
I can toggle the airplane mode and back and then 4G shows up again, but only for 30 seconds or so. I have restarted the phone, hard reboot, sim card taken out and put back in, and data toggle. 4G comes back but not for long. I also tried modifying my APN settings APN type from default, mms, supl to default, mms, supl, hipri as I read on another forum site. None of these have fixed the problem.

Is anyone else seeing this problem? Any suggestions?

danjogom is offline  
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