topic Re: Xperia Z C6603 Network Problems in XPERIA archive

Xperia Z C6603 Network Problems

teosSony1 — Mon, 23 Nov 2015 16:21:58 GMT

So I bought a refurbished Xperia Z (Android 4.4.4 KitKat) a couple of days ago. I put my 4G sim card in and i saw only the "E" sign on top. I have tried everything i have read in this forum, but i can't update my Xperia Z via PCC, or via the phone itself, or repair the problem using anything else. Please help, this is driving me crazy. (And sorry for any spelling mistakes, english is not my native language)

Re: Xperia Z C6603 Network Problems

Uliwooly — Mon, 23 Nov 2015 18:38:52 GMT

@teosSony

I've seen this before, things to check

1 if your phone its compatible with your carrier's 4G LTE bands

2 Sometimes your carrier must enabled 4G on your account and/or add the IMEI of your phone

3 if the SIM card its old you might need to get a new MICRO SIM card

4 make sure that you have the correct APN settings

Re: Xperia Z C6603 Network Problems

teosSony1 — Mon, 23 Nov 2015 18:57:56 GMT

The problem is I only get 2G network and also I can't update to 5.1. There is something else I forgot to mention. When I switch to wcdma only I get no signal at all. I can't even make calls. I am concerned about the phone having software problems and missing antenna also.

Re: Xperia Z C6603 Network Problems

Uliwooly — Mon, 23 Nov 2015 19:09:01 GMT

@teosSony

Did you checked this with your carrier for any 2G issues? also, do you have the correct APN settings?

Re: Xperia Z C6603 Network Problems

teosSony1 — Wed, 25 Nov 2015 18:13:54 GMT

My carrier supports up to 4G but my phone only operates in 2G. I changed carrier today and the same problem persists. I also found out that I don't have a pressure sensor in my phone, so probably I won't have the antenna either. Also, the phone won't update to 5.0 in any way.

Re: Xperia Z C6603 Network Problems

Hampus — Thu, 26 Nov 2015 12:25:53 GMT

Hi,

I'm not sure if you have tried to perform a software repair using PC Companion via PC Companion? If not, could you give it a go to see if this can help?

Re: Xperia Z C6603 Network Problems

teosSony1 — Thu, 26 Nov 2015 13:19:33 GMT

Probably a dumb question but how do u repair the software? I only have the update option, but It doesn't update to Lollipop.

Re: Xperia Z C6603 Network Problems

Hampus — Thu, 26 Nov 2015 13:38:20 GMT

In PC Companion you press start on Support Zone > Start on Update the phone/tablet software > Repair phone/tablet (the blue clickable link in the message) > Follow these steps without having your device connected to the PC.

Follow the instruction that appears in the program and do not connect your device until this guide tells you how to connect it. You can find step by step guide (with pictures) here:
http://talk.sonymobile.com/t5/FAQ/How-to-perform-a-software-repair/m-p/1061294

Re: Xperia Z C6603 Network Problems

teosSony1 — Fri, 27 Nov 2015 15:05:48 GMT

Apparently, i could not repair the phone either. Pc Companion said there was no software for my phone. I am really getting tired of this thing. Do you guys know any other way to install software on my phone ?

Re: Xperia Z C6603 Network Problems

Hampus — Fri, 27 Nov 2015 15:11:16 GMT

Could you send me your IMEI-number via PM and I can look closer into it:
http://support.sonymobile.com/global-en/xperiaz/userguide/IMEI-number/

Re: Xperia Z C6603 Network Problems

teosSony1 — Fri, 27 Nov 2015 19:57:45 GMT

Hey man check your PM

Re: Xperia Z C6603 Network Problems

PadreWalas — Sun, 29 Nov 2015 23:41:47 GMT

I had the network problem in my xperia device after updating to lollipo 5.1, i contacted with my carrier but it seems the problem is belong to my phone. Becouse when i use same sim card to other phone it works good. When i choose to use only WCDMA i lost the netwok at all and phone tell me no service. I only capable of using 2g network

Re: Xperia Z C6603 Network Problems

teosSony1 — Sun, 29 Nov 2015 23:44:28 GMT

You have my same problem buddy, but I also can't update to Lollipop in any way

Re: Xperia Z C6603 Network Problems

PadreWalas — Mon, 30 Nov 2015 00:34:13 GMT

if you check network bands btn z6602/3 there is big different, bt i believe sony can fix this only there is delaying

Re: Xperia Z C6603 Network Problems

teosSony1 — Mon, 30 Nov 2015 00:46:25 GMT

I think the people I got the phone from installed the C6603 software in a C6602 model, because I checked my IMEI and it was that of a C6602 and I no LTE bands show up in the phone's service menu, and probably this also messed-up the phone so much

Re: Xperia Z C6603 Network Problems

Latifraza — Thu, 04 Aug 2016 17:40:26 GMT

I m having network connect issue after 8 months of purchase c6603 since then I m utilize this phone over wifi connection only Pls advice signals are ON / OFF frequently... Or sometimes not at all. Serial No of phone iscb5a1uu8cn Pls advice