z3 signal problem

[phobos]

Hi, 

I have a very strange problem with my new z3. With my vodafone sim I have a very poor reception, my signal is bouncing from 3g to h+ but often with only 1 or 2 bars out of 5. Navigation is almost impossible and often I completely lost connection and I cannot receive also phone calls. I tried with another sim from another operator and I can navigate even if I don't have a good reception ( in comparison with my xperia M, in the same room, I get 5 bars and with the z3 only 1 or 2). The same vodafone sim in other phones works perfectly. It seems like a problem between vodafone operator and the z3 (I've also changed this sim with another one in a vodafone shop porting my phone number but nothing changed) or a reception problem of the phone (this doesn't explain why it works with a sim with another operatore even if with a very poor signal). I don't know what to do...

Thank you for your help!

[phobos]

Sorry, I realized I posted it in the wrong place, my phone is a Z3, not a Z3 Compact

[Sam]

This may just be poor LTE signal as this can cause the drop of the reception. Please try this: Main Menu > Settings > More > Mobile Networks > Network Mode > WCDMA Preferred/GSM.

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[phobos]

I've already tried it. Nothing changed. By the way I've also tried to update the phone.

[Sam]

In this case it would be worth speaking with both the network provider and your local Xperia Care team to have this looked at on a more local level.

[phobos]

already done it. I will be sending my device back, hoping it is a phone problem.

Thank you for your help

[ram1880]

I am also having the same exact problem with the sony z3 phone. Can anyone tell me is it the Vodafone network problem or just the phone itself problem ? Please help thank you

[ziyadalsayed]

Also have same problem with my STC (Saudi Telecom Company in Saudi Arabia) - Signal sometime loose totally and its GSM Only not 3G or LTE.

I thinks its phone problem, becasue my previous device IPhone 5S didn't face this issue totally.

[Marcial]

wow...amazing!!!...just like that....!-- former settings on my xperia z3 compact were: settings/more/mobile networks/network mode/4G(preferred)WCDMA/GSM, then I changed setting to GSM only and it amazingly took my signal to FULL BARS!!!

Thnx!!

[Threemanbiker]

I have the same with my Z3 keeps dropping the signal and cannot find it again for hours on end. During this time the battery drains really fast as it searches for signal eg 30% in an hour or two. At other times it will get a really good signal and get very hot also burning the battery at a stupid speed.
Ironically I went to China and during my stay there the signal and battery were as expected so I have to say the UK vodafone network looks to blame. I have swapped the sim and tried hundreds of reboots and a full factory restore. The phone is 3 weeks old and passes all its own diagnostics though ironically for a phone this does not include checking the sim or phone radio!