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2015-11-11 02:00 PM
Have you tried switching back and forth between LTE and GSM or WCDMA?
My phone seems to be working now although now I have a problem not being able to connect to the PC although the phone says USB connected but the PC says it cannot recognize the device( Sony Vaio). Even when I go through restarts etc nothing works. This phone seems to have nothing but problems.
2016-01-05 01:05 AM
I had the same issues with my phone, As much as I hated to do it, I factory reset my phone and had to reinstall the internet and MMS applications. In settings>more>Internet settings> and click accept when the ooption pops up on the screen
I'm not sure if it made a difference but I also activated the 4G at the drop drown options tab when dragged down.
2016-01-19 11:23 AM
After getting my new phone this solution worked after spending 2 days trying to troubleshoot it. How ridiculous is not having this setting enable by default... not a good first impression...
2016-01-26 08:05 PM
Yes i agree. So not worth it. Dont know why Sony brought this phone out already. Clearly not ready. If you can return it would be my suggestion.
2016-01-29 07:48 AM
I have the same issue. No Stamina turned on, no battery manager and battery saving apps installed, but while screen is off mobile data (sometimes wifi (wifi is set to be turn on even while screen is off)) are (mostly) not working. And when screen is unlocked it takes a quite long time 'till connection is established.
2016-02-01 04:16 PM
2016-09-06 03:47 PM
The phone doesnt have 3g, and i cant assess the APN, i already done factory reset on the phone but everything still remain like that, should i return it.
2017-02-08 12:02 AM
I have read ALL of the previous messages in this topic and i have done them ALL. Nothing works. I haven't even had this phone active for 2 weeks. Yes I have spoken with my provider, the sim is activated for data and works in other phones. I can get data through wifi and bluetooth, but not on it's own. And yes I've been through the resets and the APNs and everything mentioned but nothing works. My phone is a standard Z5.