Loss of network signal during calls & drops out - Z3 Dual D6633

[lordnismo]

Hello and thanks for the time to read

I have recently purchased a Z3 Dual sim D6633 and around twice a day either when receiving or making a call the phone suddenly drops out during conversation and both network strength bars are showing no signal. a message briefly shows up saying no no network signal ( or something to that effect ) then dissappears. A few seconds later the signal comes back for both sims and all is ok again.

I have absolutly no idea why this is happening but its becoming frustrating especially when I have to call clients back....

Has anyone experienced this before or know a fix for it. currently Sim 1 is set for GSM only (2G) and Sim 2 for LTE. both are on Telstra.

The phone updated to the latest version when I got it and to my knowledge hasnt updated since - 5.0.2

Would really appreciate your help with this, thanks

[Qatrium]

I have a Z3 dual, didn't notice such an effect. I have one SIM at LTE preferred and one at GSM only. Can you test if this happens in safe mode?

/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[lordnismo]

Thanks for the prompt reply

Its in safe mode now and ill see how it goes over the next few days and post back

Cheers

[Uliwooly]

@lordnismo

You can also repair your phone with PCC or get a brand new NANO SIM card

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[lordnismo]

Ok

So ive had the phone in safe mode but didnt even last the morning before it dropped out, exactly the same issue with loss of network message and both signal bars in the top of screen showing nothing. few seconds later they both light up again and I can make another call.

Really not sure where to go from here

[Uliwooly]

@lordnismo

repair the phone with PCC and report back

[lordnismo]

@ uliwooly

What does PCC do, is it able to detect faults the phone has logged and repair based on this ?

Thanks

[Qatrium]

PC Companion phone repair  will do a clean installation of the latest firmware and will also wipe your internal memory. It a more powerful error fixing tool than factory reset, so it will give an idea if it was a software fault or you need to send the phone to maintenance.

[Romih]

ive the same probleam its happed only if i install two sim and i only lose network while reacive calls 

 also i make factory rest to the phone and change the sim and still face this 

note i use the sim 1 only for data and sim 2 only for calls 

[Uliwooly]

@Romih

Perhaps @Hampus could comment on this