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

[sadi1]

I have a Sony xperia Z3 dual for 9 month.I have updated that to Android lollipop recently .after update my antenna sometimes suddenly miss in both the two or one sim and I can't receive phone calls and sms.my Sims are from different operators and I have changed both of them but nothing changed.
please help me thanks

[Hampus]

Hi sadi1,

I moved your post to an already existing topic since it sounds related. Could you take a look at my suggestions here to see if you can work it out?

[AllZZ]

Same problem. D6633 last firmware. Only 1 simcard installed. Tried LTE preff mode and WCDMA preff mode. No difference. After 5-60 seconds after call start, signal lost for 10 seconds. ~ then for 15 seconds ok and signal drop again for 10 seconds

[Ainur1]

Hi! I have exactly the same problem! I haven't decided how to deal with it. My phone is also constantly drops the call and lost the signal from the operator of the network on both SIM cards, then everything is restored. This occurs often. I noticed that these problems started after I updated my Android 4.4.4 Kit Kat to version loli pop 5.0. *.

[Ainur1]

.. PCC did not help. Have installed the latest firmware. The problem with the loss of antennas left. When I bought my Sony Z3 dual I was not like this, maybe it's due to the fact that stood Android 4.4.4 Kit Kat ?!

[Ainur1]

I translated into English. I'm from Russia.

[Uliwooly]

@Ainur1

Have you checked all the posts on this thread and/or follow the suggestions?

[Ainur1]

Yes. I checked all the posts. solution for this problem is not found.

[Uliwooly]

@Ainur1

Contact your local Xperia care to get your phone inspected. 

[Ainur1]

Ok!