[Q] LTE not working on Z2? - Xperia Z2 Q&A, Help & Troubleshooting

So around 3 weeks ago I got a brand new unlocked Z2 D6503. As it says, it supports LTE and the bands it support are available and broadcasted here in KSA.
I'm on the operator Zain KSA and when I manually search for mobile networks, I do see the LTE network by the operator but whenever I select it, it doesn't register on it.
I've tried everything from calling/visiting the network operator from changing the SIM and getting a new one.
The FW I have is .314
Anyone has any experience or any idea? Do I need to reflash the FW?

May be enter the correct APN settings for your carrier?
Sent from my One using Tapatalk

Firstly, are you on an LTE plan? For Singapore, we need to sign up to an LTE plan and the operator has to do the necessary activation, before we can register on the LTE network.

hush66 said:
Firstly, are you on an LTE plan? For Singapore, we need to sign up to an LTE plan and the operator has to do the necessary activation, before we can register on the LTE network.
Click to expand...
Click to collapse
That's the thing, I already had 4G activated, and I specially got it deactivated and activated again on this handset. 4G coverage is in my area, each and everything is in optimal condition. The network operator says everything is also fine at their end...
kirdroid said:
May be enter the correct APN settings for your carrier?
Sent from my One using Tapatalk
Click to expand...
Click to collapse
Yup everything is configured correctly

I can confirm that it is the handset that is not registering LTE.
I just popped in a working LTE SIM which has full coverage in my area and Z2 fails to register it...

Well I can't say much about LTE since I am on 3G data plan so can't use it. But the funny thing happened that I was on Edge connection, even tho I was in city centre and I could use 3G, it was full. So went into phone options and changed into 3G only and then Z2 has magically seen the better connection. Try to do that for LTE, maybe it will work. Otherwise I would flash other firmware or repair with PCC.

HugePotato said:
Well I can't say much about LTE since I am on 3G data plan so can't use it. But the funny thing happened that I was on Edge connection, even tho I was in city centre and I could use 3G, it was full. So went into phone options and changed into 3G only and then Z2 has magically seen the better connection. Try to do that for LTE, maybe it will work. Otherwise I would flash other firmware or repair with PCC.
Click to expand...
Click to collapse
Okay so actually solved the issue.
I reinstalled/repaired the FW using Sony PC Companion and now LTE works perfectly. But the side effect? I heard that 4.4.2 causes many bugs and seems like I just got the phone sluggish one.
Phone feels sluggish in different parts as well as when I tap the recent icons button. Also the animation for WiFi turning on and off is not there anymore...
I don't know what's happening anymore....:/

I too have a bit of a lag when I hit recents menu button. I guess it's just the way Z2 is now and we have to wait for new firmwares, hopefully with less bugs, to come.
Happy for you that you fixed the problem with LTE

HugePotato said:
I too have a bit of a lag when I hit recents menu button. I guess it's just the way Z2 is now and we have to wait for new firmwares, hopefully with less bugs, to come.
Happy for you that you fixed the problem with LTE
Click to expand...
Click to collapse
Yeah, seems like we'll just have to wait for 4.4.4 to hit...
Sad how the animations worked and there was no lag but sadly no LTE functionality. Such bad FW release.
And yeah atleast I fixed the LTE issue as I really can't stand slow internet and H+ seems pretty slow to me.

Same problem...install the new software through PC companion still the problem
MajorAly said:
Okay so actually solved the issue.
I reinstalled/repaired the FW using Sony PC Companion and now LTE works perfectly. But the side effect? I heard that 4.4.2 causes many bugs and seems like I just got the phone sluggish one.
Phone feels sluggish in different parts as well as when I tap the recent icons button. Also the animation for WiFi turning on and off is not there anymore...
I don't know what's happening anymore....:/
Click to expand...
Click to collapse
Dear Majorlay sir
i need your help, i am trying to connect to my lte network, it dont register
i am having new 4g activated Mobily sim in khobar (KSA)
kindly help and send me your number i will call you back
please help me
0542353734
[email protected]

Related

4G no longer appears/works

Hi Guys and Girls,
After finally managing to get through the whole noobie learning how to root/backup/flash etc, I noticed later on that 4G no longer appears, checking through the network operators and network mode, non of them mention it, only 3G
This was active and working before I did the changes, so am a little puzzled. Also I noticed I was receiving text messages from Vodaphone regarding updates etc, but I receive non now.. so not sure if that's also linked?
Phone details are
C6833
4.4.2
Kernel 3.4.0 Jackie
14.3.A.0.757
Would be grateful for the support to get this back, not sure if I can simply call my network provider and ask for some sort of update to be resent?
Hello.
Watch in settings if 4G/LTE is selected or prefered.
Hi,
I used to have the option for 4G and a network from vodaphone for 4G
Now I only have the LTE preferred option
:/
StreamingMT said:
Hello.
Watch in settings if 4G/LTE is selected or prefered.
Click to expand...
Click to collapse
I can't help you, sorry.
Maybe a problem with ROM or kernel you use.
You can change ROM, kernel, or full wipe your phone if you want te get 4G and other users can't help.
OrangeMagicGod said:
Hi,
I used to have the option for 4G and a network from vodaphone for 4G
Now I only have the LTE preferred option
:/
Click to expand...
Click to collapse
4g = lte
How come no symbols show up now to let you know what your connected to, when I selected LTE to start, at the moment I selected it, the connection broke then re-connected and LTE appeared but now it even shows? is that normal? 4G showed at all times so I know the coverage is fine.
Am just worried as this is my first android and my first experience performing the rooting and updates etc, and has been a stress lol
/rocks back and forth in the corner
blueether said:
4g = lte
Click to expand...
Click to collapse

HELP! no signal

Hello
I got my xperia z2 D6503 2 days ago brand new sealed. I inserted my Net10 sim and it worked like 1 day and than I noticed that there was signal issue first I thought it was because of area than I found out it was phones fault since same sim card worked perfectly on my old xperia z and also on xperia z2 Tab and on my brothers galaxy s4. strange thing is it shows low signal only when LTE is on and I can send and receive text messages but I can't make calls. as soon as I turn off LTE it looses signal and no text or call go through.
I tried factory reset, 2 different sim cards, even bought new sim card, numerous restarts and nothing helps. searched web for this issue and nothing at all.
so anyone else had this experienced? any solutions?
thanks
Build: 17.1.A.2.69
baseband: 8974-AAAAANPZQ-00004-07
giozera said:
Hello
I got my xperia z2 D6503 2 days ago brand new sealed. I inserted my Net10 sim and it worked like 1 day and than I noticed that there was signal issue first I thought it was because of area than I found out it was phones fault since same sim card worked perfectly on my old xperia z and also on xperia z2 Tab and on my brothers galaxy s4. strange thing is it shows low signal only when LTE is on and I can send and receive text messages but I can't make calls. as soon as I turn off LTE it looses signal and no text or call go through.
I tried factory reset, 2 different sim cards, even bought new sim card, numerous restarts and nothing helps. searched web for this issue and nothing at all.
so anyone else had this experienced? any solutions?
thanks
Build: 17.1.A.2.69
baseband: 8974-AAAAANPZQ-00004-07
Click to expand...
Click to collapse
Same issue with my z2... only when I hold it a certain way... I'm on Bell mobility in Canada and got the phone a few days ago.
I've been experiencing the same issue ever and I've had my phone over a month, I'm on EE in the uk running the .55 firmware. My phone is currently in repair to fix this problem so I'll get back to see if it can be fixed
Sony has no solution in USA and can't repair so I returned for exchange to seller. I though it was only me so looks like gonna be big issue
giozera said:
Sony has no solution in USA and can't repair so I returned for exchange to seller. I though it was only me so looks like gonna be big issue
Click to expand...
Click to collapse
Hey, so did the exchange solve the problem for you? I am using NET10 as well and while I do get signal on all networks (2G. 3G, etc..) I notice that it isn't as good as almost any other phone I've had. I live in an area that has poor signal and places that I get 1-2 bars on other phones I get 0-1 on this phone, though when I'm in upper town where signal is great I get about the same as others do. I'm just not sure if my phone is defective or this is just how it is. I really don't want to wait to exchange plus the seller seems reluctant to do so..
I had to fix my APN (wireless &networks -> mobile data).
I Google the correct settings for my carrier(ATT/USA), and saved the updates and it worked IMMEDIATELY.
it's been solid since ever since. Note there are differences for the 3g VS LTE versions. Make sure you enter the right settings.
Good luck!
CCDillon said:
Hey, so did the exchange solve the problem for you? I am using NET10 as well and while I do get signal on all networks (2G. 3G, etc..) I notice that it isn't as good as almost any other phone I've had. I live in an area that has poor signal and places that I get 1-2 bars on other phones I get 0-1 on this phone, though when I'm in upper town where signal is great I get about the same as others do. I'm just not sure if my phone is defective or this is just how it is. I really don't want to wait to exchange plus the seller seems reluctant to do so..
Click to expand...
Click to collapse
I got replacement toda so far so good.
yea I noticed that signal is not as strong as it was on my Xperia Z. even lost signal at the places where my Z was solid. hope this could be solved with future software update.
Ken_Burnside said:
I had to fix my APN (wireless &networks -> mobile data).
I Google the correct settings for my carrier(ATT/USA), and saved the updates and it worked IMMEDIATELY.
it's been solid since ever since. Note there are differences for the 3g VS LTE versions. Make sure you enter the right settings.
Good luck!
Click to expand...
Click to collapse
I did entered correct APN's as I mentioned it was working great for almost day and Than suddenly stopped working so if I had entered wrong APN's it wouldn't worked first time I powered it on. plus same sim card worked well on other LTE phone while was not working on my new Z2, so it was not APN issue.
Try rebooting 3-4 times and then wait. This should solve the problem.
Check the baseband version online and on your phone.
There is also a firmware update but you have to cable your phone to a computer and let it install the Sony software on the PC/MAC ... Mine updated yesterday...
Worth a shot if you haven't done so already.
giozera said:
I got replacement toda so far so good.
yea I noticed that signal is not as strong as it was on my Xperia Z. even lost signal at the places where my Z was solid. hope this could be solved with future software update.
Click to expand...
Click to collapse
Thanks man, it seems that's just how the phone is, maybe I can stop worrying so much about that now, especially since this Z2 I have has no defects that are so plentiful on other user's phones.
And like I said, it's not such a big deal when I'm in places with adequate coverage so it's tolerable. I updated to .402 yesterday and there isn't any change with signal but I'm holding out for more updates that can help out with coverage. I'm thinking once the Z2 is released in some way in the US (carrier or Sony store) that there will be an update then that may help us out.
I'm probably the last person to be offering advice in this forum, however, just a couple days ago I noticed I had no data connectivity at all. Calls and texting still worked, but no cellular data. All my APN setting were correct and even though airplane mode was not selected, turning it off and on again got my data connection back. Just something stumbled upon and I have no idea if it applies to anyone elses issue here. Just thought I'd toss it out there in case it helps just one person.
bluheart said:
Try rebooting 3-4 times and then wait. This should solve the problem.
Check the baseband version online and on your phone.
Click to expand...
Click to collapse
Solve which problem? The one i posted in very first post or the weak signal on my replacement? I did more than 5 reboots to solve first proble but nope.
Now this very weak signal worries me it loosed signal at places where my old Z was great. Hope this phone doesn't end up super problematic
Sent from my SGP521
Sony Service will service/replace the set, if needed. So please do check in there.
phone is amazing everything works smooth, but weak signal is getting on my nerves! looses signal very often and data gets really slow because of low signal even when LTE is available. I live in brooklyn ny and my xperia Z didn't have this issue at all. hopefully this could be fixed soon by software update.
Drop down quick settings from home and ensure LTE is ticked on.
Sent from my D6503 using XDA Premium 4 mobile app
augie7107 said:
Drop down quick settings from home and ensure LTE is ticked on.
Sent from my D6503 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
In that case there is only one way to sloved problem
Call sony xperia department let them fix it or replace new one. Don't even think phone can repair itself
Same problem
My sisters got the same problem,
Help line, Tech team no help what so ever !!!
Been on the phone for over 2 weeks !!!
They wont solve the problem what so ever !
One tech team even said "buy a new phone" !! such great customer service !!
They are wanting £150 for it so it can be "fixed"..... also wanting £40 for the month contract despite not having the phone !!!
I understand who you feel... they are no use what so ever and rude...

[Q] Xperia Z2 US T-Mobile LTE Connection Issue

I've had my Z2 for over a month now but I've been unable to connect to T-Mobile's LTE network here in the US.
I know for a fact there's LTE in my area (I live in Seattle). Other phones have had no problem connecting to LTE.
After talking with T-Mobile's tech support I should have the correct APN settings. They also refreshed my phone on
their network. It helped somewhat. Before they refreshed, I couldn't detect the LTE network. Now I can detect it
but can't connect.
If anyone can give me some advice as to how to get things up and running that would be most helpful.
I've attached some screenshots that may help in diagnosing the problem.
I'm on T-Mobile in Los Angeles, and those are my settings... The only difference I have is the APN protocol is set to IPv6. Not sure if that makes a difference. Otherwise, we have the same exact settings and my LTE works fine.
Call TMo. Sometimes they have to reprovision your phone on the backend. I had that ptoblem with my Z1 but not with Z2. My APN type is blank. The settings can be found at TMo site. If you cannot find them, call TMo and they wipl email that to you.
Sent from my SGP312
Thanks for the suggestions.
I changed to IPv6, IPv4/6; I still get H+ but I dont get LTE.
I did call them, I guess what I meant by refresh was "reprovision". When I first got the Z2 I couldn't even detect LTE with network search.
But after talking with them; I was able to see the network. But for whatever reasons I cannot connect to it.
aesculapius7788 said:
Thanks for the suggestions.
I changed to IPv6, IPv4/6; I still get H+ but I dont get LTE.
I did call them, I guess what I meant by refresh was "reprovision". When I first got the Z2 I couldn't even detect LTE with network search.
But after talking with them; I was able to see the network. But for whatever reasons I cannot connect to it.
Click to expand...
Click to collapse
Might be a stupid question, but are you using an LTE-compatible SIM card?
haha, no that's actually a good question. I wasn't before but I went to t-mobile and got a new lte compatible one. but nothing's changed. i'm thinking maybe there's something wrong with the sim card.
Mine hasn't said "LTE" since I updated to .402 FW. It says 4G now instead, does yours show neither LTE or 4G? I get H+ in some areass, so I know there's a difference between the symbols (even if Tmo likes to think they are both 4G).
Try flash .438 ftf file via flashtool
To see can solve it.
Sent from my D6503 using XDA Free mobile app
I flashed unbranded. 402 ftf from Germany when I first got my device. Then I deleted the factory t-mobile apn that it downloaded and used these settings. They always work for me with unbranded international devices!
2219
The icon im getting is 3G/H+
Singtel .438 didn't work; same problem;
It might be an issue with my baseband.
I have
8974-AAAAANPZQ-00005-09
I'll try flashing germany .402 now.

No Mobile Data

Tried restarting, changing sim. Best I got was an Edge signal and it disappeared in less than a minute. I haven't noticed the problem since I'm on Wifi at home and in my office. Later I'll be going somewhere I expect with no Wifi so I tried it now, and voila I have no Mobile Data on my phone. I called the operator, my internet service is active on the system so I just had to try to restart which I already did.
So much for the "NEXT IS NOW" tagline. Seems that The latest Samsung phone is still operating on analog motherboard or something.
Quick update: I switched to WCDMA/GSM and now I have H+ when I tried LTE/WCDM/GSM, I get nothing. Is this because of the firmware I flashed?
Captain Cook said:
Quick update: I switched to WCDMA/GSM and now I have H+ when I tried LTE/WCDM/GSM, I get nothing. Is this because of the firmware I flashed?
Click to expand...
Click to collapse
I would have thought that if you are getting something with WCDMA/GSM, you'd at least get the same if your on LTE/WCDMA/GSM, as it should drop down to WCMDA/GSM in the absence of LTE.
However, if you have been flashing ROMs, I would suggest trying something else (perhaps stock for you carrier if carrier branded) before assuming the worst.
Regards,
Dave
Sent from my SM-G925F using Tapatalk

E5823 - no 4G (UK)??

purchased an 'EU' z5c from ebay
I was wondering why I cant get 4g signal only H+ when in 4g areas
I have read the only difference between the E5823 and E5803 is the cat 6/cat 4 lte, I dont really know what this means but I assume this might be the problem
4g is set to 'preffered' in network settings menu
network provider is Three
any ideas?
Have you contacted your service provider? might be that you are prioritized to use HSPA, they might have to do a reset on you in their system or just enable 4G etc?
Echts said:
Have you contacted your service provider? might be that you are prioritized to use HSPA, they might have to do a reset on you in their system or just enable 4G etc?
Click to expand...
Click to collapse
The phone was purchased unlocked and I have been using my Three SIM card in another phone (GS3 LTE) previously and this had 4G signal no problem ... dont see why putting the SIM into a new phone would then change some setting on the network provider's side..
I will contact them anyway
very disappointing I fear maybe this EU version is blocking Uk 4g somehow
thank you
birthday_flex said:
The phone was purchased unlocked and I have been using my Three SIM card in another phone (GS3 LTE) previously and this had 4G signal no problem ... dont see why putting the SIM into a new phone would then change some setting on the network provider's side..
I will contact them anyway
very disappointing I fear maybe this EU version is blocking Uk 4g somehow
thank you
Click to expand...
Click to collapse
Got the wife E8523 from o2 and is showing 4G/LTE
I have that same model on 3 network and get 4g
Have you downloaded Internet settings for three from settings - >more?
It is a bull****, just close this topic
chribruu said:
Have you downloaded Internet settings for three from settings - >more?
Click to expand...
Click to collapse
Did not think of that. Have done this now just need to test In 4g area. Thanks
And thank you for your thoughts as well, williamgrant

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