topic Re: Xperia Z5 keeps losing mobile network connection. in Z Series

Xperia Z5 keeps losing mobile network connection.

SaltySpecula — Thu, 15 Jun 2017 23:04:36 GMT

I have a Sony Xperia X5 and since the last major Android OS update, my phone loses all mobile signal and disconnects itself from the mobile network 4-6 times a day. I have to manually restart the device every time to get it working again for a short time and there is no readily obvious event or trigger that causes it to disconnect from the network. Once it disconnects, it will not automatically reconnect.

I have found other people with a simmilar problem and from their suggestions I have attempted the following:

1: Ensured the device is not on airplane mode.

2: Moved to different locations ( many ).

3: Replaced the sim card ( twice ).

4: Ensure mobile data is on and no data limit is enabled.

5: Restored to factory default.

6: Performed full system updates to latest OS version.

None of these have had any effect at all, unfortunately. I can't afford to have my phone just disconnect itself every few hours and be completely uncontactable until I notice and restart the phone. Any suggestions for fixing this?

Re: Xperia Z5 keeps losing mobile network connection.

CameronT — Fri, 16 Jun 2017 02:46:01 GMT

Hi @SaltySpecula, I am sorry to hear about this

The last thing I recommend you try is a software repair using Xperia Companion.

If that doesn't resolve the issue then I recommend you contact your Local support team.

Re: Xperia Z5 keeps losing mobile network connection.

SaltySpecula — Fri, 16 Jun 2017 03:13:34 GMT

Hi Cameron!

I will try the software repair tonight, I need to be at home to back up my data before the repair wipes it. If it doesn't work, I will contact my local support team as suggested and post an update here. Thanks for your help and direction!

Re: Xperia Z5 keeps losing mobile network connection.

CameronT — Fri, 16 Jun 2017 03:24:23 GMT

No problem. Good luck!

Re: Xperia Z5 keeps losing mobile network connection.

jackedoff — Fri, 16 Jun 2017 03:39:48 GMT

I'd go to a independent phone shop if your local support recommends a visit to the service centre going off experience & not just my opinion the Sony customer complaints what are easily accessible to read on trust pilot. You will have no end of woes you are better off taking it anywhere than the service centre.

Re: Xperia Z5 keeps losing mobile network connection.

CameronT — Mon, 19 Jun 2017 00:49:48 GMT

@jackedoff,

I would highly advise against any third party repairs, especially where your handset is within the warranty period as they will generally void your warranty.

Also please keep in mind that this is an international forum and there are many authorised repair agents for Sony Mobile around the world. Your personal experience may not be reflective of the service someone else receives.

If you have an issue with the service you received from a repair agent, I recommend you contact your Local support team.

Re: Xperia Z5 keeps losing mobile network connection.

Avishka11 — Fri, 03 Nov 2017 09:07:03 GMT

I have the exact same problem. Ever since I got the new update. I replaced the simple cards which worked temporarily (a day).

Re: Xperia Z5 keeps losing mobile network connection.

GiSFeanor — Fri, 10 Nov 2017 20:04:34 GMT

I' ve had the exact same problem with my Z2 for more than a year. Now my wife bought a X, and after 2 weeks she's seeing the same issues. No network. Reset is the only solution. Flight mode on and off does not solve it, nor is it possible to to find a network provider to choose.

Re: Xperia Z5 keeps losing mobile network connection.

Alin_S — Tue, 14 Nov 2017 09:17:16 GMT

Thank you very much for the solution. I had the same problem with my Xperia M2, and it was solved after the software repair. I did it a week ago and no problem so far. Also, I got a nice boost on battery life. Thanks again! 👍

Re: Xperia Z5 keeps losing mobile network connection.

Gee213 — Thu, 22 Feb 2018 22:18:49 GMT

I follow step by step and still doesn't work.

Re: Xperia Z5 keeps losing mobile network connection.

QaisarZ5 — Fri, 23 Feb 2018 06:13:00 GMT

Hi @cameron
I have the same issue, My device is two years old, and suddenly from some weeks I have been facing this issue,

I also tried the pc companion repair but evertime the download was stucked at some percentage. Though I am not able to solve the issue yet.

Also I am not able to find any authorized services center in my city i.e Hyderabad Pakistan.

Re: Xperia Z5 keeps losing mobile network connection.

BrankoR — Wed, 28 Feb 2018 13:06:16 GMT

I have the same problem with my z5. Signal lost by itself, and coming back again sometimes is very low. I try pc companion repear...same, flashed another rom, changed the two antenas on th phone and is not solved! I beleave now it is sony fault and we wait sony to solve it by update..please

Re: Xperia Z5 keeps losing mobile network connection.

MariusSl — Sun, 01 Apr 2018 10:01:49 GMT

I had the same problem for a long time. Replaced many parts but still nothing until found video on YouTube.

This worked for me.

https://youtu.be/0LdSNGdtwSw

*#*#4636#*#*

Phone info

Choose network type GSM only

Turn mobile radio on

Restart phone

Hope this works for you too 🙂

Re: Xperia Z5 keeps losing mobile network connection.

Ivan327 — Thu, 02 Aug 2018 15:32:00 GMT

Hello are you technical support or just a forum user with some recommendations ?

Re: Xperia Z5 keeps losing mobile network connection.

Richard19 — Mon, 15 Oct 2018 13:48:55 GMT

Hi Team,

I have received the phone from the sony qualified technicians and still facing overheating and singal strength is very poor . very disappointed investing money once again sony