No Mobile Data - Xperia Z1 Compact Q&A, Help & Troubleshooting

Hi, its my first post on the Z1C forum.
I just got one yesterday to replace my Nexus 5 and am accounting a few things I need help with since I am new to the xperia line of phones.
So my phone looks like this (for data) however I can't browse anything. I have mobile data enabled, national roaming and preferred network being 4G but nothing is working. With my Nexus 5 my data just worked so I am unsure why this is happening here. I can send texts and make calls just fine. Phone is on lolipop 5.0.2
The wifi signal in my room is terrible and its constantly dropping and when that happens I can't do anything with it.
I am on tesco mobile with a 2GB 4G plan.
http://imgur.com/GBhJJEW
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Edit: So I looked around I went into mobile network and scanned, found tesco and registered. So I have 3G data now, but 4G isn't registering. Maybe I need to phone up Tesco and ask them.

Or maybe it's just not a 4G mast where you're connecting?

Is problem "no mobile data at all" or "no LTE connection" ?
Can you transfer data on 3G?
If so - check twice if your SIM card is LTE compatible.

I had to adjust the APN on my phone when I first got it as the one it autodetected wasnt correct. Try that out.

Hi so i just got a z1c and this happened to me. I could send and get text/calls even get notifications and updates. I called sony and t-mobile, nether could help me. Then i found a option under "more" in settings to update "Internet settings" find your server and hit ok. Try it out, i hope this helps.

In my case I needed to contact my carrier to enable 4G. Tried it?
Not sent by me.

settings.>>other>>>internet settings>>>download internet and mms settings...
this should do the trick...

Inconsistent Connection
I got my Z1C a few days ago and updated it to Lollipop yesterday. Ever since the update, the phone has been dropping data connection. I don't know what's the initial cause yet but as it stands, in order to get it working again I have to take out the SIM and reinsert it multiple times. I'm watching it carefully tho because it seems to happen whenever I start Candy Crush. Is there anybody else having this experience?

Related

Weird Data Issue

Ok guys, I'm getting frustrated with this data issues I've been having.
I've done searches everywhere and have yet to find any solutions or even anyone else with the same issue so maybe by chance someone here will have an idea.
Whenever I am heavily using my data connection (i.e. streaming music, you tube, constant web browsing) my data connection just goes dead. It stops streaming, stops loading websites, i get connection retry/timeout errors, etc etc etc.
This only happens over cell networks not wifi. My phone still shows the 3G or H connection icon like its still connected, but everything stops working. and the most annoying part is it happens after about 2-10 minutes of heavy data use. If I'm just lightly browsing the web (going to a website, staying there a little while then on to another link/site) it doesn't seem to do it as often, if at all.
After the data connection seems to go dead (still shows connected via 3G or H icon mind you), if I leave my phone alone for about 15-30 minutes, everything starts working fine again. But I usually get impatient and just go into the settings, disable data connection and then immediately re-enable it and it starts working again for another 2-10 minutes of heavy use!
As if all this wasn't weird enough, THIS PROBLEM HAS FOLLOWED ME FROM MY NEXUS ONE TO MY NEW G2! With my N1 tech support thought I had a faulty radio chip so they replaced the device and that didn't help, that's when I decided to sell the N1 and switch to the G2. Since then I've gotten a new sim card and that hasn't help. I thought maybe somehow it was my SD card, but it does it with the SD card removed too.
What the hell man?!? I'm at my wits end here.
Try to see if you can get a new sim card for free. I know thats sort of a strange issue but it you had it on both you nexus and g2 i dont even know what else to suggest.
Mog said:
Try to see if you can get a new sim card for free. I know thats sort of a strange issue but it you had it on both you nexus and g2 i dont even know what else to suggest.
Click to expand...
Click to collapse
Already tried that too, it didn't help.
A bad wireless tower perhaps?
Sent from my T-Mobile G2 using XDA App
How many bars of signal do you have? I've noticed that the G2's data connection is pretty much useless if you have two bars or less of signal.
Sent from my T-Mobile G2 running Cyanogenmod.
I have a T-Mobile G2 and I have experiencing the same issue! And I can't figure out what the problem is. I have tried the new SIM card that came with the G2 and that didn't work. I am getting really frustrated and the Technical Support from T-Mobile isn't much help either. Does anyone have a solution?
I spoke with a representative yesterday and he asked me to change the following setting:
From your Homescreen, click the "menu" button --> Settings --> Wireless & Networks --> Mobile Networks --> Access Point Names --> T-Mobile Data
Click on T-Mobile Data and it will allow you to edit the access point. Select APN and change it to "internet2.voicestream.com" from "epc.tmobile.com".
He then asked me to restart my phone. It's been working so far (for a day)! I will keep you posted.
Sometimes T-Mobile will slow down ur speed if u've been using a lot of bandwidth. This will cause ur vids to stop playing/not play at all.
Sent from my T-Mobile G2 using XDA App

[Q] [SOLVED] T-Mobile G2, no service anywhere, error while searching for networks

I've been struggling with a problem that I just solved in a stupid way so I'm posting to help other googlers.
As I was using my phone recently, I lost service like I had gone into an area devoid of towers, but service never came back. I verified that another TMobile phone (similar plan) found towers and service just fine. I tried everything I could think of from upgrading Cyanogenmod and the radio to reverting to the stock firmware. No matter what I did, the phone would not get signal. When I went to Settings -> Wireless & networks -> Mobile networks -> Network operators I would simply get "Error while searching for networks".
It turns out that the SIM card had seen the end of its days. I went to the TMobile store and had the SIM card switched out for a new one (free) and everything worked again.
The explanation I was given was that old "legacy" SIM cards sometimes will just stop allowing you to connect to the towers with no other symptoms.
TL;DR: If your TMobile (maybe other carriers too) phone isn't connecting to the towers anymore, don't panic. You probably need a new SIM card and you can probably get one for free.
Seeing the exact same problem in the last few days
Found your post by googling the error message - I've got the exact same situation on my G2, the behavior started this last weekend. The phone sometimes connects but is very, very inconsistent. I'm missing almost all text messages, or getting them up to a day late. I guess it's off to a t-mo store for a new SIM card if this doesn't stop. Funny thing is this phone was purchased with a (supposedly) new SIM card - hard to call it "legacy".
Thank you, I just stopped getting service today randomly and nothing I did could get it back. I went in to panic mode and was flashing and wiping and everything I could think of then I saw this post. I didn't think it could work but sure enough it did.
way to be....i learned my fact for the day.
mine just bit the dust.
called t-mobile and they suggested a new SIM as well.
ah well
I had the same issue and after doing tons of troubleshooting i seen that there was a space right under the keyboard that was fully flush with the phone. I lightly pressed until both sides snapped back into place and full service returned. So if you have this issue check to see if there are any spaces open and snap it closed.
halfak said:
I've been struggling with a problem that I just solved in a stupid way so I'm posting to help other googlers.
As I was using my phone recently, I lost service like I had gone into an area devoid of towers, but service never came back. I verified that another TMobile phone (similar plan) found towers and service just fine. I tried everything I could think of from upgrading Cyanogenmod and the radio to reverting to the stock firmware. No matter what I did, the phone would not get signal. When I went to Settings -> Wireless & networks -> Mobile networks -> Network operators I would simply get "Error while searching for networks".
It turns out that the SIM card had seen the end of its days. I went to the TMobile store and had the SIM card switched out for a new one (free) and everything worked again.
The explanation I was given was that old "legacy" SIM cards sometimes will just stop allowing you to connect to the towers with no other symptoms.
TL;DR: If your TMobile (maybe other carriers too) phone isn't connecting to the towers anymore, don't panic. You probably need a new SIM card and you can probably get one for free.
Click to expand...
Click to collapse
Mine has been doing this sporadically, it comes and goes and sometimes I cannot get it to find a service provider. I have to keep doing it over and over and over. Sometimes I have to set phone down and come back in a few minutes to do it again and it finally shows a provider.
The question I have is if you take your phone into Tmobile store to have sim. card replaced do you have to revert phone back to stock G2? Will they say something to you if you are rooted and running CM?
This problem happened to me too and a SIM swap fixed it. They don't check if you are rooted- they might ask you to reboot and change some settings to rule out the obvious stuff like airplane mode, correct carrier, etc.
Maybe not same issue, but also have a soultion for similar issue on G2X
Maybe I didn't have the exact same issue, but I had the exact same symptoms, so throwing my solution up here for other Googlers trying to troubleshoot this as well...
I actually have a G2X, went to Canada where I disabled roaming data and used the t-Mobile wifi calling stuff primarily...
When I got back home to the USA, I couldn't get a signal, but I also didn't have the little x next to the icon... When I went into my settings, I couldn't seem to get the "Use 2G Network" setting to stay off, and of course I couldn't make calls or anything over the mobile network...
So I figured I just needed to force the phone to register on the local network, maybe all the roaming got it mixed up or something, but when I went to the "Network operators" setting, I couldn't "Search Networks" and "Select Automatically" didn't work either, I kept seeing the error "Error while searching for networks".... spent some time playing with libril.so and friends, but it made no difference.
Anyway, long story short, it turns out that there's a setting in the T-Mobile "Wifi Calling" app under "Connection preferences", if you select "Wifi Only", it applies to your setting all the time, even when wifi is disabled, disconnected, and even if the "Wifi Calling" app is disabled too !! So just change that setting back to something else when you're done requiring that behavior and everything will work again, Yay!
intangible said:
Anyway, long story short, it turns out that there's a setting in the T-Mobile "Wifi Calling" app under "Connection preferences", if you select "Wifi Only", it applies to your setting all the time, even when wifi is disabled, disconnected, and even if the "Wifi Calling" app is disabled too !! So just change that setting back to something else when you're done requiring that behavior and everything will work again, Yay!
Click to expand...
Click to collapse
I can verify that this is the solution that works. I have the LG G2 w/ T-Mobile. I hadn't had any problems until today. Stumbled upon this thread after the T-Mobile chat support couldn't help me. Went to System Settings and turned wifi calling off completely. Back in business.

Problem with Data Connection

I replaced my galaxy s 2 because it was acting up and now i have rooted one and also put stock rom bloat free and i recently noticed that sometimes my phone have hard time connecting to data. i can see the uplink sign go green but the downlink arrow doesnt blink and phone keeps me waiting waiting and waiting and i have to restart the phone or leave it for good 5 or 10 minutes to be able to start working. can anyone please tell me if thats a hardware issue or the software? do i need to have my phone replaced?, i dont know if tmobile store would exchange phone now because i purchased phone on 12th and its been 12 days if the reffer me to customer service then they will send me a refurbished phone which i do not want because i paid full price for phone.
any help will be appreciated.
Data connection problem
If you haven't already tried, go to Settings/Wireless and network/Mobile networks/Access Point Names and if there is an option to reset, select it. I had a similar problem with data connections - up and down lights blinked but no connection - and T-mobile support helped me out. Also, make sure Use packet data and Data roaming are checked.
mtmikey said:
If you haven't already tried, go to Settings/Wireless and network/Mobile networks/Access Point Names and if there is an option to reset, select it. I had a similar problem with data connections - up and down lights blinked but no connection - and T-mobile support helped me out. Also, make sure Use packet data and Data roaming are checked.
Click to expand...
Click to collapse
I've had the problem too, both on 4G and WiFi. There is a warning on the data roaming option about incurring extra charges. Is this true? I know that my plan says free domestic roaming, but I'm not sure that applies to data?
The T-mobile rep allowed that this was confusing. They stated that there are no additional charges within the US. Roaming is required because TM uses other providers' (i.e. Verizon) towers in some locations.
I have this same problem, Im wondering if the update coming out next month for wi-fi calling will address this, or what about using the new sim card??? Its pretty annoying but i didnt want to really exchange my phone b/c this is the only problem im having as well as the vertical lines which i have pretty much learned to live with.
K_esco said:
I have this same problem, Im wondering if the update coming out next month for wi-fi calling will address this, or what about using the new sim card??? Its pretty annoying but i didnt want to really exchange my phone b/c this is the only problem im having as well as the vertical lines which i have pretty much learned to live with.
Click to expand...
Click to collapse
i am using the new sim card already... i dont know if the problem is with new sim card or the phone itself but it gets annoying sometimes when i need internet and it doesnt wanna work.
Has anyone had any luck fixing this?
I noticed this problem sometime after rooting and flashing roms. Now I'm on the stock rom released in the dev channel. I've talked with customer servie for an hour and none of their solutions fixed anything for me.
I don't have a good backup - is there anything I can do?
I haven't been bitten by this again. It has been a couple days and I've since replaced my phone (today). But I haven't been on 4G much. Wifi has been working fine for the last couple days.

Data connection keeps dropping

I'm running my Captivate glide on Orange network (device is unlocked).
I rooted it following all the steps shown in http://forum.xda-developers.com/showthread.php?t=1378082 (BTW, works great thanks).
I kept AT&T rom, but issue happens also with Rogers rom.
This happens only on 3G/3G+ connections.
WiFi works great.
The issue looks quite simple: data connection drops (very) often.
No more email push notifications, ...
Have to go to Settings > Network > Airplane mode : switch it on and then witch it off to get data connection back.
It is not an operator issue. My other phone(s) are using the same and data connection works.
Is this a radio rom issue ? Is there a fix ? (didn't find a thing related to that issue).
Anyone having this issue ?
Depends on how strong your network is, I have experienced this a few times.
I keep getting this now that I have had more experience with it, anyone else experiencing random sharp drops in data speed/connection?
vil33 said:
Depends on how strong your network is, I have experienced this a few times.
Click to expand...
Click to collapse
Well, I have 4 out of 5 bars... Signal looks strong enough to me.
If I use the same SIM card in a HTC MyTouch 4G slide => Works great, no data connection drops at all !
Looks like it depends on what programs are running and using the data connection:
- email push - connection last long enough.
- when I'm running Bejive (IM) - connection last a bit less (before the 1st drop).
- when I add Skype & LoudTalks : almost every 5 minutes connection drops.
I also noticed that after a voice phone call, sometimes data connection doesn't (cannot) restart by itself ...
Here is an idea :
Is there a way to tweak Operator connection like it can be done with HTC phones : GSM + CDMA, CDMA Only ?
Because when you switch the phone to CDMA only, it uses different frequencies and allow to keep data connections while talking on the phone.
Didn't find that option in Captivate Glide settings ...
frav said:
Well, I have 4 out of 5 bars... Signal looks strong enough to me.
If I use the same SIM card in a HTC MyTouch 4G slide => Works great, no data connection drops at all !
Looks like it depends on what programs are running and using the data connection:
- email push - connection last long enough.
- when I'm running Bejive (IM) - connection last a bit less (before the 1st drop).
- when I add Skype & LoudTalks : almost every 5 minutes connection drops.
I also noticed that after a voice phone call, sometimes data connection doesn't (cannot) restart by itself ...
Here is an idea :
Is there a way to tweak Operator connection like it can be done with HTC phones : GSM + CDMA, CDMA Only ?
Because when you switch the phone to CDMA only, it uses different frequencies and allow to keep data connections while talking on the phone.
Didn't find that option in Captivate Glide settings ...
Click to expand...
Click to collapse
Settings --> Wireless and Network --> Mobile Networks --> Network Mode
Didn't make a difference for me using HSPA only.
vil33 said:
Settings --> Wireless and Network --> Mobile Networks --> Network Mode
Didn't make a difference for me using HSPA only.
Click to expand...
Click to collapse
I just checked ... I don't have the "Network Mode" option in "Mobile Networks" section.
I have Roaming, allow data connection, APN, ... but not Network mode.
Weird...
I checked the operator info. Nothing out of the ordinary there.
I'm stuck ...and it keeps happening. No solution for now.
frav said:
I just checked ... I don't have the "Network Mode" option in "Mobile Networks" section.
I have Roaming, allow data connection, APN, ... but not Network mode.
Weird...
I checked the operator info. Nothing out of the ordinary there.
I'm stuck ...and it keeps happening. No solution for now.
Click to expand...
Click to collapse
Maybe try flashing the Rogers kernel and ROM since that's what I have?
vil33 said:
Maybe try flashing the Rogers kernel and ROM since that's what I have?
Click to expand...
Click to collapse
Already did that, but that was a few days ago when looking for the WiFi tethering feature ...
I'll flash it back to Rogers kernel & ROM and test.
Update: Flashed Rogers rom.
Good news is I now have the Network settings back. (AT&T rom is not the right one, for sure !)
Data connection last longer. But the issue is still here.
Still investigating...
Anyone else having this issue ?
the day before yesterday, I went to the copier room in my school and stayed for about 2 hours (too many copying). before i get out, i have no signal (mobile network not available). I need to go out to have signal back or reboot.
It happened again yesterday on the exact same location, I'm going to be there again now.
I believe it might be location wise....in my case at least.
gabby131 said:
the day before yesterday, I went to the copier room in my school and stayed for about 2 hours (too many copying). before i get out, i have no signal (mobile network not available). I need to go out to have signal back or reboot.
It happened again yesterday on the exact same location, I'm going to be there again now.
I believe it might be location wise....in my case at least.
Click to expand...
Click to collapse
I checked, looks like it is not linked to a specific location. I've been travelling and issue kept occuring.
Once data connection is ok, it usually stays up for 2 to 5 minutes, then drops.
"4G" symbol is still displayed - but no more data connection. Web pages not available in browser, no email sync, no more IM, ...
While data connection is down, Cellphone still works, WiFi as well.
It may be linked to an APN issue ... Or definitely a Radio ROM issue.
I'm running Baseband I927RUXKJ5.
Anyone else having this issue ?
When I got the phone the AT&T rep told me there was a known issue with the phone dropping down to lower data speed. He told me if I experienced it to get a new SIM card. Doesn't sound exactly the same but maybe try that?

[Q] AT&T 3G Data not working, can't repair connections

Been having an issue with my unlocked One X lately. Just this morning, my AT&T 3G data completely conked out and will not come back online. I can make phone calls and send texts, but MMS and data are broken. I've tried manually changing the APN settings, but nothing works. Any possible fixes someone knows that actually work?
Gunmoku said:
Been having an issue with my unlocked One X lately. Just this morning, my AT&T 3G data completely conked out and will not come back online. I can make phone calls and send texts, but MMS and data are broken. I've tried manually changing the APN settings, but nothing works. Any possible fixes someone knows that actually work?
Click to expand...
Click to collapse
Have you hit the soft cap on your data plan? If you've been throttled it might feel like you have no data. Are you in a non-HSPA+ market? If so, AT&T's continuing to upgrade the backhaul of their HSPA network so it might have nothing to do with your phone. Their working in my market and I lost data about a week ago. If you have another phone handy see if the SIM works in it. If it doesn't work there it's either your account, the SIM itself, or something to do with the network.

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