[Q] Xperia Z2 US T-Mobile LTE Connection Issue - Xperia Z2 Q&A, Help & Troubleshooting

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.

Related

HTC Hero 3G question

Hi,
I have a question about the 3g network. Well recently i tried connecting to vodafone and noticed that there is no 3g icon on the status bar unlike from the orange network. My question is that if there is no 3g icon, does this mean i do not have the 3 g coverage ? I tried connecting to the net, i put on the right settings APN, proxy.... but in vain. all i get is the message that i have to enable mobile connections which in fact is already enabled.
Can anyone here clear my mind please. thanks.
P.S I have no problems with the orange network. 3 g, Hspda everything works fine and fast.
You need to make sure you have a 3G SIM card for Vodafone. If you just pulled one out of an older phone (especially one that did not have 3G) then the SIM is probably only good for 2G (GSM/GPRS). The 2G and 3G SIM cards look identical, but they have different information on them.
clobber said:
You need to make sure you have a 3G SIM card for Vodafone. If you just pulled one out of an older phone (especially one that did not have 3G) then the SIM is probably only good for 2G (GSM/GPRS). The 2G and 3G SIM cards look identical, but they have different information on them.
Click to expand...
Click to collapse
for sure it is a 3g simcard. on other phones, coverage and data connection works fine but on the hero....
But on the Orange network are you not using an Orange SIM? And on the Vodafone network using a Vodafone SIM?
Only other thing I can think of is Vodafone don't have 3G coverage at the exact location you are trying?
clobber said:
But on the Orange network are you not using an Orange SIM? And on the Vodafone network using a Vodafone SIM?
Only other thing I can think of is Vodafone don't have 3G coverage at the exact location you are trying?
Click to expand...
Click to collapse
well yes. i actually have two sims and 2 phones but i would have prefered to have the vodafone one on the hero. Vodafone do have the coverage cause my other phone do have the 3 g coverage.Cannot figure out where is the problem. Called the guys at vodafone and all they could tell me was that they do not have any settings for the phone, that they cannot help me cause they do not provide the pphone here.
Hmm....the APN setting and everything should be the same regardless of 2G or 3G data connectivity. Actually, that is something to check if you have not already. With the Vodafone SIM in your Hero when you go to Settings->Wireless Controls -> Mobile Network settings you might want to make sure "use only 2G networks" is not checked. Also make sure the Access Point Names is configured correctly. I don't know what they are for Vodafone, but a quick Google should tell you. Other than that, hmmm.........
clobber said:
Hmm....the APN setting and everything should be the same regardless of 2G or 3G data connectivity. Actually, that is something to check if you have not already. With the Vodafone SIM in your Hero when you go to Settings->Wireless Controls -> Mobile Network settings you might want to make sure "use only 2G networks" is not checked. Also make sure the Access Point Names is configured correctly. I don't know what they are for Vodafone, but a quick Google should tell you. Other than that, hmmm.........
Click to expand...
Click to collapse
Yep , i did everything right. still......
Try locking it in 3g mode. I have a rooted G1, you get to the menu by typing the following into the dialer:
*#4636#*
after entering that sequence it should goto a menu, pick the first item and scroll down and see if you can change from "CDMA preferred" to "CDMA only" or whatever your 3G equivalent is.
This is based off a G1 with a Hero ROM, so results may vary. Let me know if this works =)
Also make sure that you are switching over to the Vodafone APN settings. You can have the settings in correctly, but if you don't switch to that profile, then it will try using the Orange. This is the most common reason I have people in my store with data connection issues, they have the right settings, but didn't select the right profile.(I sell cell phone and cell phone accessories on a GSM network in the US, so I get a lot of unlocked phones in need of setup.)
Problem solved. A moderator could kindly please close this thread. thanks to all who helped. Cheers!!!
deeren said:
Problem solved. A moderator could kindly please close this thread. thanks to all who helped. Cheers!!!
Click to expand...
Click to collapse
Care to share what fixed it? For future reference if I do buy a Hero =)
southeastbeast said:
Care to share what fixed it? For future reference if I do buy a Hero =)
Click to expand...
Click to collapse
hi friend,
well there was nothing to fix as such. it was a misunderstanding.
One thing i came to know is that 3g will appear only is there is a data connection ...and if your apn is set correctly.
and another thing that was resolved is that htc hero cannot connect to vodafone live here in romania because it is only possible through wap bla bla bla a lot of crap.
This was the answer of vodafone representant: For the moment, the service vodafone live we provide cannot be accessed through new handsets with new browsers such as n97,iphone htc magic...

T-mobile / Orange Roaming

Hi all,
I'm on t-mobile in the uk and on my previous phone (htc hero) I was able to flick automatically to Orange's signal when I had poor t-mobile signal. When this would happen the phone would let me know I was roaming.
However, on my new Galaxy S2 it never seems to change to Orange's signal and my phone is never roaming. This has resulted in me having worse reception on my new phone over my old hero.
Has anyone else experienced this and if so is their something I can do to fix it?
I'm using the standard unrooted rom.
Sent from my GT-I9100 using XDA App
Mine would never do this either.
Go to the mobile network settings and MANUALLY connect to Orange.
Then wait for it to connect and then go back in and choose Automatic.
This fixed it for me my phone now roams.
Did you take out a new contract for your phone? Maybe you need to activate the network sharing again from the tmobile website.
IakobosJ said:
Mine would never do this either.
Go to the mobile network settings and MANUALLY connect to Orange.
Then wait for it to connect and then go back in and choose Automatic.
This fixed it for me my phone now roams.
Click to expand...
Click to collapse
Thanks, just tried this but still no joy. Interestingly when I manually connect to "T-Mobile Orange" instead of just "T-Mobile" and then check the roaming status, it still says "Not roaming" - shouldn't it say "Roaming" when I'm on Orange?
Joey2o11 said:
Did you take out a new contract for your phone? Maybe you need to activate the network sharing again from the tmobile website.
Click to expand...
Click to collapse
Thanks, I called T-Mobile a couple of weeks ago to check to see if anything needed setup on my account and she said that it was all good to go. I think T-Mobile have removed the ability to opt-in to network sharing as I can't find it anywhere, I think it's automatically enabled for all new accounts.
It's driving me mad as I feel like I'm missing out on something and I can't see any way to fix it :-(
ok i just manually switched to orange and it says i'm not roaming. That's what i'd expect to see as both networks are considered 'home' networks. Maybe you just haven't been in an area with no tmobile coverage??
I had to send a text to T-Mobile (1221 I think) to use the Orange network when I had the HTC HD2. It switched seamlessly when I went out of a T-Mobile signal area.
When I upgraded my phone to the SGSII, there was still no problem switching networks. Admittedly I used the same SIM card, so that might be the switch-over went so smooth.
fred_up said:
I had to send a text to T-Mobile (1221 I think) to use the Orange network when I had the HTC HD2. It switched seamlessly when I went out of a T-Mobile signal area.
When I upgraded my phone to the SGSII, there was still no problem switching networks. Admittedly I used the same SIM card, so that might be the switch-over went so smooth.
Click to expand...
Click to collapse
Yeah i remember having to send a text to opt in to the network sharing, though as the OP has pointed out i believe it's automatic now for new contracts.
Thanks all. I've realised that it's simply that my old Hero used to show a roaming icon but the gs2 doesn't. It still flicks automatically from tmobile to orange.
I wish I spotted that before using up your valuable time!
Sent from my GT-I9100 using XDA App

[Q] Using 3G network instead of 4G on HTC One

I'm wondering if I'm the first guy on earth experiencing this problem.
I got an AT&T unlocked HTC One (M7) in the US and brought it with me to Brazil. I introduced the SIM card in it and it worked perfectly for phone calls. However, I can't get the internet access through the network. Brazil only works with 3G at the moment.
I called HTC and they told me to dial *#*#4636#*#* and change the settings for the network under "set preferred network". They told me there would be no guarantee this would work, but I should try.
I tried all the options from WCDMA, CDMA, GSM Only and so on and still could not get the mobile data access.
Right now, internet works only with Wi-Fi. So, he said that I could try finding help on XDA Developers.
So, is there anyone who knows what I should do next?
I wonder if rooting would resolve it, but it seems pretty much a device problem.
André
Make sure you have a 4G sim and make sure you are in a 4G area
But also, are youtalking about hspa+ or LTE?
Sent from my HTC One using xda app-developers app
Reply [Q] Using 3G network instead of 4G on HTC One
I'm not in a 4G area. Only 3G.
That's why I need to change the settings. I tried also setting the APN settings and nothing so far...
André
take the same sim card in some local 3g andorid phone in brazil and try again .to make sure your sim card support 3g network , and you say you can not access network by your phone. i doubt if you have a data plan .maybe you should take a phone call to your carrier to check the data plan of your sim card
Thanks for the tips. I solved my problem by calling the provider. It was ANP setting issue. I wasn't getting it right the way it was supposed to.
Thanks again!
timgreen123 said:
take the same sim card in some local 3g andorid phone in brazil and try again .to make sure your sim card support 3g network , and you say you can not access network by your phone. i doubt if you have a data plan .maybe you should take a phone call to your carrier to check the data plan of your sim card
Click to expand...
Click to collapse
dr_acalves said:
Thanks for the tips. I solved my problem by calling the provider. It was ANP setting issue. I wasn't getting it right the way it was supposed to.
Thanks again!
Click to expand...
Click to collapse
i have a similar problem, my data plan works, but it shows that im on 4G but in fact we only have 3G in our country.
how can i stay on 3G only instead of 4G?
mzatari said:
i have a similar problem, my data plan works, but it shows that im on 4G but in fact we only have 3G in our country.
how can i stay on 3G only instead of 4G?
Click to expand...
Click to collapse
4G is hspa+ ... it is a faster form of 3g but still it's 3g
4G and 4GLTE are not the same thing

[Q] LTE not working on Z2?

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]

Unlocked T-Mobile LG V10 switched to AT&T, but LTE does not work

Hi, I have an LG V10 that I purchased from TMOBILE. I switched to AT&T, and brought my T-Mobile device with me. Everything works fine, but I cannot get 4G LTE service at all. I have tried 2 APN settings, and that does not help. I live in a large metropolitan area, and I know that 4G is available here with AT&T. Does anybody have any idea why I can only get 4G and not 4G LTE?
Thanks!
This happened to me when flashing a custom Rom, the fix for me was to change the network speed to 3g or 2g then keep changing Ap's until you see you are connected to a network. Once you see that you are connected, change it back to 4gLTE. Let me know if this worked for you.
This is the APN I use and got LTE to work. It's old APN but it works for me.
Name-LTE
APN-phone
proxy, port, username, password-Not set
MMSC-http://mmsc.mobile.att.net
MMS proxy-proxy.mobile.att.net
MMS port-8080 (In order for MMS to work with adblock plus, I use 8080 instead of 80 because using port 80 will cause the MMS not to work)
MCC-310
MNC-410
Authentication type-Not set
APN type-default,mms,supl,hipri (hipri is what makes LTE to work. Without using "hipri" I only get 4G, not LTE. No need to use "fota". It is for tablets)
APN protocol-IPv4
If changing to this APN setting and you still don't get LTE, reboot the phone.
bkgibby said:
This happened to me when flashing a custom Rom, the fix for me was to change the network speed to 3g or 2g then keep changing Ap's until you see you are connected to a network. Once you see that you are connected, change it back to 4gLTE. Let me know if this worked for you.
Click to expand...
Click to collapse
Wow, i was thinking i was the only one with this wierd problem, i had a lg g3 tmobile with this issue, when i was on wifi for large periods and the back to data, the 4g lte appears like it was working fine, but it never gave me access to inteternet, then i had to revert to 3g or 2g, and when it connects and works, i revert back to 4g lte and works fine, until i get wifi, and the same all over again, but this only happen to me with lg on tmobile, i had htc, samsung and this problem does not seems to happens with that brands, so i tougth it was the lg g3 itself and i sell it, but now i get a brand new v10 with tmobile and the problem is still the same, and i don´t find anything on the internet about it, until i see this post, do you know why is this happen? im on mexico, and i use my phones whit telcel
Have you tried apn unlcok?
Diag 277634#*# and look for the "APN UNLOCK" option
jkyoho said:
Have you tried apn unlcok?
Diag 277634#*# and look for the "APN UNLOCK" option
Click to expand...
Click to collapse
when i hit the apn unlock option appears a message that tells me: "apn has been unlocked" or something like that, but the phone stills the same, do i have to do something else besides manually enter apn settings from my operator?
A word of advice I have an unlocked t-mobile lg v10 and I have had the same issue as you and believe me I tried every possible fix and nothing worked until I tried this fix ( put your sim card in another AT&T device in my case my girlfriend has an AT&T iphone 6 and leave it for a minute or 2 once you see the 4G LTE on that device remove it and put it back into your phone and you will have the 4G LTE all the time, of course you need to set up your apn but like I said I spent a whole month and tried everything before I came to that fix because nothing else worked) I hope that would help you.
I totally switched iphone 6 SIM on unlocked LG v10 ,,,but i saw LTE for 5sec and then back to 4G ...
Don't know if it will work ..
Just a network access problem, you should save yourself some time and just.... Call AT&T customer support?
Or hit the AT&T V10 forums for correct APNs. I'm sure you aren't the first person to deal with this issue.
Yes u can have 4G LTE ...just activate with a AT&T 4G LTE IMEI
missexe10 said:
Hi, I have an LG V10 that I purchased from TMOBILE. I switched to AT&T, and brought my T-Mobile device with me. Everything works fine, but I cannot get 4G LTE service at all. I have tried 2 APN settings, and that does not help. I live in a large metropolitan area, and I know that 4G is available here with AT&T. Does anybody have any idea why I can only get 4G and not 4G LTE?
Thanks!
Click to expand...
Click to collapse
i have the same senario...recently moved to AT&T with the UNLOCKED Tmobile LG V10 and every thing works just fine with AT&T SIM except no 4G LTE and when you asked At&T they will try to convince you to buy their device to get 4G LTE signal....it took me a while to figure it out that u can get 4G LTE on an unlocked LG V10 if u activate the service with any AT&T 4G LTE capable device IMEI..... One more thing.. u are on your own to provide the LTE capable IMEI to customer service. That means don't except to walk in to AT&T store and borrow the IMEI from their display unit..coz they wont let u do that.....
The T-mobile phones pick up perfectly on ATT, it's most likely an APN related issue.

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