topic Re: Loosing mobile data connection in Z Series

Loosing mobile data connection

armandeus — Wed, 12 Mar 2014 11:08:35 GMT

I have Z1 Compact for 2 weeks and every second day my phone looses its mobile data connection... even the data transfer icon dissapears from the top line of the screen... only restart fixes it... and it is happening again in about 24 hours

I am noticing this every morning as i drive my car to work and im using Waze navigation programm, that shows "Searching network" in red... also emails and Chrome is not working...

Does someone had such problem and know how to fix it?

Thanks in advance!!!

Re: Loosing mobile data connection

_alexdon_ — Wed, 12 Mar 2014 11:39:18 GMT

Have you tried booting in safe mode,see if the same occurs?

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

Re: Loosing mobile data connection

armandeus — Wed, 12 Mar 2014 12:46:50 GMT

Thanks for advice! Im going to try this... usually it takes about 24 hours for that error to occur... so i guess tomorrow i shall see if there will be a difference :)...

Re: Loosing mobile data connection

_alexdon_ — Wed, 12 Mar 2014 12:48:14 GMT

Ok,keep us updated.

Re: Loosing mobile data connection

armandeus — Thu, 13 Mar 2014 06:37:59 GMT

so this morning... before leaving home i turned off wi-fi to test the mobile data connection - everything were fine!

i turned back on wifi and after about ten minutes i started my car and were going to work...

after about 10 driven kilometers i looked at Waze on my phone - no errors... i even tried Chrome - web pages was opening just fine... then after about 15-20 kilometers i noticed the usual red warning in Waze - "Searching network"... also the mobile data icon were gone too... so now my phone's mobile data connection is not working again... and turning off/on the mobile data rocker is not helping... is there another way how to reset the mobile data connection or how i could try to switch it on?

And where could be the problem???

As you remember - i were testing the safe mode... so now its clear that safe mode have no effect on that problem :((((

Please advice...

Re: Loosing mobile data connection

kind3r — Thu, 13 Mar 2014 10:22:52 GMT

You could also try replacing your sim. I've had this issues with 3 different phones until it made me realise it's probably the sim card. Changed it and no problems since.

Re: Loosing mobile data connection

armandeus — Thu, 13 Mar 2014 12:18:06 GMT

mmm... thanks for advice... i will ask my provider to make for me another sim card... hope that will resolve this issue!

Re: Loosing mobile data connection

malcolmsu — Thu, 13 Mar 2014 14:02:05 GMT

this may seem obvious but what battery life is remaining when this happens?? I had a similar issue and found a setting that switched data services off when the battery life went below 20%.

Re: Loosing mobile data connection

_alexdon_ — Thu, 13 Mar 2014 16:18:23 GMT

After you get that new SIM and test it,report here.It could be related to that.

Re: Loosing mobile data connection

armandeus — Thu, 13 Mar 2014 19:19:04 GMT

to: MalcolmS

I thought about that (Stamina and Low battery mode in settings... these are switched off)... but that happens no matter how full the battery is... every second night i am charging my Z1c... tomorrow ill try to notice when exactly the mobile data connection is lost... is it happening for example on 7:00 AM or at some specific point in my way to work...

Maybe it hase something related with Smart Connect? This evening i turned it off completely...

Re: Loosing mobile data connection

_alexdon_ — Thu, 13 Mar 2014 19:21:11 GMT

Try settings-apps-all-smart connect,clear data and force stop.Yes,it has something from 7 to 7 or something like that,where it disables features on your device.

Re: Loosing mobile data connection

armandeus — Thu, 13 Mar 2014 19:24:05 GMT

to alexdon

today i spoked to my operator... but they denied that possibility completely (about replacing SIM)... almost laughed at me :)....

but that will not stop me! im going to spend some euros to buy a prepaid one and test this anyway!!!

we will see whos laughing last hehehe...

Re: Loosing mobile data connection

_alexdon_ — Thu, 13 Mar 2014 19:30:22 GMT

Ok,buy a SIM card and test your phone.It might still not be related to smart connect.

Re: Loosing mobile data connection

armandeus — Fri, 14 Mar 2014 08:34:16 GMT

Good morning!

So... last time I restarted my phone yesterday about at 18:00 just to try out is there something related to aproximately 24hour fenomena... - nope... :)... today at 7:10 my mobile data stoped working...

When i was haveing my breakfast (at 6:30) i disabled Wi-Fi and started to use only mobile data connection... everything was fine... i even installed from Google play a programm called Ping... and all it does is pinging network every second to make sure there is internet connection... so with the Waze in background and this Ping program in foreground i was driving my way to work... and after 20 minutes of driving the internet connection just broke down... notification icon was lost... and the Waze were showing the red "Searching network" text...

By doing this i realized that there is no timer for 24 hours... and i think there is no some "buffer overrun" problem... even i believe that thats not related to Smart Connect as i disabled it yesterday... so there is a lot to do... i still want to check the SIM card by trying a another one... and i want to try not using Waze in the morning... but i believe its not the Waze problem... because all day im driving with Waze and i am even going the same way to home with Waze...

Maybe someone knows how to hard reset the Z1c? Or there is nothing more than "reset to factory defaults" in the settings?

Maybe someday the new KitKat update will fix this? :(...

Thanks in advance... still digging :)...

Re: Loosing mobile data connection

_alexdon_ — Fri, 14 Mar 2014 12:10:58 GMT

You can reset to factory settings directly from your phone or you can repair via sony update service:

http://www.sonymobile.com/gb/tools/update-service/

Re: Loosing mobile data connection

armandeus — Mon, 17 Mar 2014 10:50:19 GMT

Hi there!

Im back again :)... on saturday I went to mobile operator client centre and asked to replace my SIM card... they agreed with no cost for this, so since saturday noon im using new SIM card and my mobile data connection never broke down since that...

So it must be defective (although it was brand new and came with phone) SIM card... and thanks for you all for helping me to get that far :)...

By the way... while testing those connections, i noticed, that every morning my Wi-Fi was turned ON, but i clearly know that i left it turned OFF... and that keeps repeating every morning... although its not a big problem, but i wonder who or what is turning it ON every morning??? I dont have any clue as ive disabled all related automation and scheduler stuff...

Maybe i should make another thread for this?

Thanks in advance!

Re: Loosing mobile data connection

_alexdon_ — Mon, 17 Mar 2014 11:53:56 GMT

No,keep it here,it is fine.Do you have wifi by location enabled?Look in settings-power management.

Re: Loosing mobile data connection

armandeus — Mon, 17 Mar 2014 18:42:26 GMT

Yes... in fact i have enabled to turn on wifi in the range of my networks... is this the reason?

Then why it enables wifi when i am all night at home (where my wifi is) and i turn wifi OFF, but on morning

when i wake up i see that wifi is back ON again :)... i even didnt left or entered the wifi zone...

maybe it has something to do with day changes at midnight? huh...

Re: Loosing mobile data connection

_alexdon_ — Mon, 17 Mar 2014 20:42:22 GMT

Disable wifi by location and see how it goes.

Re: Loosing mobile data connection

_alexdon_ — Mon, 17 Mar 2014 20:43:37 GMT

About the enable-disable thing,it could be related to smart connect or I really do not know.Do you have wifi on during sleep?