topic Re: Z3 Compact dropping cellular connection in XPERIA archive

Z3 Compact dropping cellular connection

CB24 — Wed, 08 Oct 2014 10:53:48 GMT

Bought a new Xperia Z3 Compact last Friday, and have run into a problem that I have never experienced before with any of my previous smartphones.
I commute to and from work by train, at one small spot along the route there are one cellular blind spot.
The mobile loses cellular contact for 20 to 30 seconds every time the train passes the blind spot, and then the signal is back. But that’s not the case with the Z3 Compact. After cellular signal is lost, it’s lost forever. Even several hours later the phone has no signal, just a red x over the signal strength bars. If I reboot the phone, the signal is back and the phone is working again.
So, I have to reboot my phone twice every day… Every morning and afternoon.
This is a brand new phone and I am pretty disappointed in the product because of this.
The good old HTC One smartphone works like a charm with the same SIM card.

Re: Z3 Compact dropping cellular connection

rec71 — Wed, 08 Oct 2014 19:03:23 GMT

Are you using Stamina mode by any chance?

Re: Z3 Compact dropping cellular connection

CB24 — Thu, 09 Oct 2014 10:23:00 GMT

All battery saving functionality is disabled.
The same thing happens if I use the telephone, the signal droppes and never comes back.
Restart phone and voala.

Christer.

Re: Z3 Compact dropping cellular connection

User8741 — Wed, 15 Oct 2014 13:54:41 GMT

Same issue. Im not using the stamina. Have build number 23.0.A.2.93. If I restrt the phone is ok again.. But this is extremely annoying on a brand new phone. Every day when I take the train home, this happens.

Re: Z3 Compact dropping cellular connection

EllePi — Wed, 15 Oct 2014 17:25:46 GMT

I would try to repair the phone via pc companion ...

Re: Z3 Compact dropping cellular connection

DeGraaff — Thu, 16 Oct 2014 10:43:24 GMT

Are you using LTE? If so, the situation may improve if you disable LTE and use "GSM/WCDMA": go into settings > more >mobile networks > network mode, choose WCDMA/GSM. For the best signal (but slow internet) you can choose "GSM only"

Re: Z3 Compact dropping cellular connection

rec71 — Thu, 16 Oct 2014 19:44:39 GMT

I've been losing my 3G connection and I might have found something that could be causing this issue: Bluetooth. Last night I repaired my device but left Bluetooth off (I usually connect to BT in the car and have a Fitbit that the phone connects to using BLE at regukar intervals). I didn't have a dropped 3G connection all day at work! However, when I got home I went for a run with a pair of Bluetooth headphones connected, and my route goes through an area with no coverage. Sure enough, when I got home the problem had reoccurred and I had no data. Rebooting fixed it.

It's hardly an extensive test but perhaps it's something to check.

Re: Z3 Compact dropping cellular connection

User8741 — Tue, 21 Oct 2014 15:22:37 GMT

It seams that the issue is less of a problem if I disable the wifi. The train has wiki but I need to signin each time (so I don't use it).. but if I disable the wiki I don't loose the 3g/4g connection.

Re: Z3 Compact dropping cellular connection

EcsM — Wed, 29 Oct 2014 12:40:46 GMT

Is there a real solution to this problem? I don't wan't some workaround that keeps me from having my wifi or bluetooth turned on.

Re: Z3 Compact dropping cellular connection

George_G — Wed, 19 Nov 2014 17:10:23 GMT

I have the Z3 and I experience the exact same a me issue when the phone loses data it does not recover nor does it when it loses signal. I have a pebble connected via BLE. This needs sorting out

Re: Z3 Compact dropping cellular connection

Sirocco14 — Tue, 16 Dec 2014 03:14:42 GMT

I have the same exact problem as CB24. I have done just about everything to fix this issue but it's just futile. Sadly, the recent firmware update did not change anything.

Sony, I hope you can fix this issue please. This is my fifth Xperia phone but this is the first time I've had any type of problem.

Re: Z3 Compact dropping cellular connection

charlie3601 — Fri, 19 Dec 2014 19:30:48 GMT

Has anyone got to the bottom of this yet - I have come from a trusty HTC one to a Z3 (non compact, but came across this thread after a search) and find it very irritating to have to keep re-booting the phone when it looses it's/LTE or 3G data signal - for clarity I'm not using stamina mode either - what to do other than give up and go back to HTC? Any advice greatfully received.

Re: Z3 Compact dropping cellular connection

gingerweb — Sat, 20 Dec 2014 21:16:49 GMT

Yep same problem here on z3 - driving to work is best example when I lose connection 3g doesn't come back until I reboot, then its fine.
My iPhone 4s used to lose 3g for 30/seconds of a 30min drive - my xperia z3 has 3g for about 30 seconds of the drive.
I was hoping this was a fault of my phone but looks like its common

Re: Z3 Compact dropping cellular connection

gingerweb — Sun, 21 Dec 2014 18:17:54 GMT

Update - I went to the network provider shop and did a "sim swap" and ever since then the signal has stayed strong and on the drive home when it dropped out at the usual place it immediately came back when i went back up the hill - i dont think it has ever done that before, so maybe my sim was faulty ?

wortha try as its a free solution ?

Re: Z3 Compact dropping cellular connection

charlie3601 — Mon, 22 Dec 2014 17:16:54 GMT

Having contacted Sony support on this they requested I do a repair, which made no difference so I too went for a SIM card change (netowrk is 3 UK) and thus far it seems to have worked, tough wood, but it's only been a few hours!

Re: Z3 Compact dropping cellular connection

charlie3601 — Tue, 23 Dec 2014 19:04:47 GMT

After a day of seemingly being fine following the SIM card change my Z3 has reverted to needing a reboot everytime it drops he data network - very irritating as I quite like the phone otherwise, but I think I'm going back to HTC now.

Re: Z3 Compact dropping cellular connection

Noir — Fri, 02 Jan 2015 12:57:17 GMT

My problem is almost like the others. I work in a kitchen and as soon as I put my phone, z3 compact, on a stainless steel table top my cellular connection is gone. When I lift it up again my connection comes back, but only sometimes. I have tried all the above tips, though non of them really worked.

Re: Z3 Compact dropping cellular connection

gavmess — Sun, 04 Jan 2015 23:42:13 GMT

Me too. I'll look down a few times a day and see the red cross over the network and no signal at all. But I turn on and off airplane mode and it jumps back up to full signal.

Does Sony actually read these posts and start their diagnosis or offer feedback/support?

Re: Z3 Compact dropping cellular connection

Barisyaman — Fri, 17 Apr 2015 10:33:27 GMT

Same problem with my Z3 compact. When I switch off the phone by power button I lost connection. After I switch on signal come back again in 30 sec. It happens 4-5 timesn in a day. I tried almost everything that you wrote above but results were same. I hate sony z series...Also no one has been given any feed back from Sony or figure this problem out. Now I am thinking to give it someone as free. Annoying!