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[Q] Installed CM 7, 3g will not lock, edge works fine

Just flashed to CM 7 and everything work great except mobile data.
It is able to get edge data, but when set to allow 3g data, the phone keeps switching between 3g and H, and never locks on a connection (the icons stay grey).
Any suggestions?
Thanks in advance!

Check your APN settings.

It is currently set to epc.tmobile.com
I tired internet2.voicestream.com before by editing the existing APN and swapping out the APN line, however, that had no effect.
Is that the correct process? or even the correct address?

So, I left the APN the same, turned off wifi, and let it try to connect to 3g the rest of the night.
After an unknown amount if time, but less than 5 hours, I was once again connected.
I guess the phone needed longer to reestablish the 3g connection.

AT&T Tab will no longer connect to AT&T data

I bought an AT&T Galaxy Tab. I confirmed when I received it, data worked, and then discontinued my service.
In the meantime I flashed to Overcome ROM, flashed to JPD to enable phone calls, brought it to Canada and used it there with a Canadian GSM provider, and now am trying to reconnect my AT&T service.
I activated my AT&T service about an hour ago, and everything seemed to be fine. I received the welcome to AT&T text message. However, it just won't connect to any data of any sort.
I've reflashed the modem to JPA, which I've seen people say works on AT&T, without any change.
I've installed the AT&T data usage widget, and it says "No Network Available or SIM could not be verified".
My APN settings by default were set with everything normal except for an empty password compared to what I found online. I tried setting a password and no effect.
Under Settings => About device => Status it shows Mobile network state as either Disconnected or Connecting.
Settings => Wireless and network => Mobile networks => Use packet data is unchecked, and whenever I try and change it, it will change to "Turning on..." and then after a few seconds it will change back to unchecked.
All of the Samsung related data connection toggles like on the pull-down windowshade or on the long press of power act like they're changing something instantly, but have no effect.
Anyone have any ideas on what's gone wrong here?

Someone stated earlier that their tab was kicked off of the network as well. I would try a series of restarts to see if the problem persists. If it does, try contacting at&t directly.
I Haz 3D!

knowledge561 said:
Someone stated earlier that their tab was kicked off of the network as well. I would try a series of restarts to see if the problem persists. If it does, try contacting at&t directly.
I Haz 3D!
Click to expand...
Click to collapse
I've restarted it about a million times in the past hour. I'll give contacting AT&T a try, hopefully it won't come up that I'm missing something from the stock ROM.

Called AT&T, they knew absolutely nothing, and couldn't help at all.
I suppose I'll try flashing a few more modems, including stock, and then I suppose I might have to reflash to completely stock if that doesn't fix it.

Try the sim card in another phone. They might not have apportioned it correctly.
Any modem will get you at least voice and EDGE, so don't worry about that now.
I have wap.cingular apn for a voice and data plan.

rangercaptain said:
Try the sim card in another phone. They might not have apportioned it correctly.
Any modem will get you at least voice and EDGE, so don't worry about that now.
I have wap.cingular apn for a voice and data plan.
Click to expand...
Click to collapse
Hmm I'll see if I can dig something up. However, I'm a little unclear on what will happen because this is the $15 AT&T Tablet data plan, and at best I might be able to scrounge up a phone.
The sim card automatically entered wap.cingular apn on my tablet plan as well.

I was soo excited when I found this thread. This is clearly my situation exactly:
http://forum.xda-developers.com/archive/index.php/t-1083173.html
I was using the voice APN on a data plan. I deleted all the old APNs, created a new one that is just Broadband/Broadband for name/APN. Rebooted.
Hit connect, and.....it's still screwed up. Now it flickers back and forth on the status page between Connecting and Connected, and the status bar up top reflects the same - I'll see the H with arrows for a half second, and then it'll disappear again.
On the Mobile networks page, Use packet data now similarly flickers between checked on its own and unchecked and gray.

Okay, no idea why, but everything works now.
After Broadband failed to work, I tried changing it to APN Broadband. That didn't work either, so I changed it back to Broadband. Things then started semi-working in that the connection was still flickering on and off, but when it was on, data was actually being transferred.
I rebooted, and now it's fully working. Hope it stays that way. Seems to shift back and forth between H and 3G a lot considering I'm in the middle of a city with full bars not moving, but other than that, all seems well.

It would have been good to know about 1,000 word ago you only have the $15 broadband sim!
Apn is: ATT BROADBAND, and nothing else.

rangercaptain said:
It would have been good to know about 1,000 word ago you only have the $15 broadband sim!
Apn is: ATT BROADBAND, and nothing else.
Click to expand...
Click to collapse
Hmm I have it set as Broadband, not ATT BROADBAND, and it's working for now so I ain't touch it.
Are people able to activate an AT&T Galaxy Tab on anything but the broadband sims?

Yes, I have voice and 3g data by ising a sim from my old android phone.

No data on 3G/E connections UK

Hi,
I've jumped ship from an iPhone to HTC One. I am very impressed with the phone and although there may some tiny imperfections such as raised glass in one corner and slight gaps I am very happy. Mine is an FA33TW.
Anyway, my problem is with data connectivity here in the UK. I am with Vodafone and with an "H" connected I get great speeds but if it is ever on anything other than "H" (G, 3G, E) I get no data at all. With four full bars on 3G pages fail to load and I cannot check my e-mail. This happens in my house, outdoors, anywhere. I've looked on the internet and some say it's a Vodafone thing but I thought I'd check here to see if anyone is experiencing similar problems.
Cheers.

ianpugh said:
Hi,
I've jumped ship from an iPhone to HTC One. I am very impressed with the phone and although there may some tiny imperfections such as raised glass in one corner and slight gaps I am very happy. Mine is an FA33TW.
Anyway, my problem is with data connectivity here in the UK. I am with Vodafone and with an "H" connected I get great speeds but if it is ever on anything other than "H" (G, 3G, E) I get no data at all. With four full bars on 3G pages fail to load and I cannot check my e-mail. This happens in my house, outdoors, anywhere. I've looked on the internet and some say it's a Vodafone thing but I thought I'd check here to see if anyone is experiencing similar problems.
Cheers.
Click to expand...
Click to collapse
Prob a problem with the APN settings that Vodafone send down. Got to Settings > Mobile Internet > Access Point Names push the 3 dot menu and Reset to factory defaults. This is pull down the latest apn settings from Vodafone and hopefully fix your problem.

Not that
dr9722 said:
Prob a problem with the APN settings that Vodafone send down. Got to Settings > Mobile Internet > Access Point Names push the 3 dot menu and Reset to factory defaults. This is pull down the latest apn settings from Vodafone and hopefully fix your problem.
Click to expand...
Click to collapse
HI,
Thanks for the suggestion but that doesn't make any difference. I think it may be a problem with Vodafone's network as I found quite a few reports of an identical problem from other Vodafone UK users on the internet.
Any Vodafone UK users out there who can or cannot use 3G/E?
Cheers.

ianpugh said:
HI,
Thanks for the suggestion but that doesn't make any difference. I think it may be a problem with Vodafone's network as I found quite a few reports of an identical problem from other Vodafone UK users on the internet.
Any Vodafone UK users out there who can or cannot use 3G/E?
Cheers.
Click to expand...
Click to collapse
It's unlikely to be the Vodafone network otherwise it would affect all different types of phone as well. My Dad has a One X on Vodafone and has no problems on G/3G/H.
I still think it's a problem with the APN settings so I would suggest deleting the existing ones and then entering them back in manually (Use Google to find all the details.)

dr9722 said:
It's unlikely to be the Vodafone network otherwise it would affect all different types of phone as well. My Dad has a One X on Vodafone and has no problems on G/3G/H.
I still think it's a problem with the APN settings so I would suggest deleting the existing ones and then entering them back in manually (Use Google to find all the details.)
Click to expand...
Click to collapse
It's an odd one indeed. If I change the APN settings to anything other than the ones that Vodafone send me by text then I get no connection at all including H.
Right now I am watching (in the 4636 test page) the network type change from HSDPA to UMTS and back every 30 seconds or so. During this time I can't open an internet page at all. The notification bar shows 3G when UMTS and H when HDSPA. Neither let me open a page which is odd as I usually get a page with H. I have 5 full bars of signal strength all the time at the desk here.
What I have noticed in this test page is that when things stop working and my internet goes off is that another setting on the test page changes. In the location line there is LAC which usually has a number. Right now it says "ee" which I think means it cannot identify which node it is connected to which is odd as I still have 5 bars.
I think this may suggest the problem is to do with Vodafone's network in my area but if anyone can shed any light on this?

ianpugh said:
It's an odd one indeed. If I change the APN settings to anything other than the ones that Vodafone send me by text then I get no connection at all including H.
Right now I am watching (in the 4636 test page) the network type change from HSDPA to UMTS and back every 30 seconds or so. During this time I can't open an internet page at all. The notification bar shows 3G when UMTS and H when HDSPA. Neither let me open a page which is odd as I usually get a page with H. I have 5 full bars of signal strength all the time at the desk here.
What I have noticed in this test page is that when things stop working and my internet goes off is that another setting on the test page changes. In the location line there is LAC which usually has a number. Right now it says "ee" which I think means it cannot identify which node it is connected to which is odd as I still have 5 bars.
I think this may suggest the problem is to do with Vodafone's network in my area but if anyone can shed any light on this?
Click to expand...
Click to collapse
Well I'm stumped. Have you tried a factory reset?

dr9722 said:
Well I'm stumped. Have you tried a factory reset?
Click to expand...
Click to collapse
Got a new SIM from shop yesterday and have done all manner of resets to no avail.
I called Vodafone again just now and this time they claim they are doing work on one or two of the masts in the area. Had this problem for days now and last 2 times I phoned they said there was nothing going on.
So I think the LAC reading "ee" is because of a local mast/network issue and there's not much I can do but take their word and wait a few days.
Thanks for all the input!

Frequent Random Network Drops

I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?

sh0nuff said:
I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?
Click to expand...
Click to collapse
check in settings in network and set your network to the one you use , like gm/wcdma /lte , maybe your phone is strugling to find 3g or 4g , try it , who knows it might solve the issue , ty

Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
Is there some sort of utility that I can use to monitor the network activity to see how frequently it drops, and for how long? I've looked into ones on Play but they don't seem to have a history, just something that shows what data up and down is currently being reported.
Sadly the only Sony store in my city (and I think the country - Canada) has recently closed for good, so I'm not sure how to go about warranty repairs...

sh0nuff said:
Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
Click to expand...
Click to collapse
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.

kopsis said:
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.
Click to expand...
Click to collapse
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi

sh0nuff said:
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi
Click to expand...
Click to collapse
Yes, it seems to be a complete loss of the mobile connection. When I wake the phone I see gray bars and a red X on the signal strength indicator. Within seconds the phone re-acquires and the indicator goes to 2 or 3 bars. I have also seen it happen with wifi active. The frustrating part is that it doesn't seem to do it often enough to troubleshoot. I'll notice the problem maybe a couple of times a month and there's nothing obviously different about my usage patterns in those instances.

Mine does it at least a dozen times a day. I can only assume this as I frequently miss calls and at least 3-4 times a day I see it happen. =(

Same Problem
Randomly I have no connection at all but after a few seconds everything wents back to normal. Did not have this problem with T-mobile in Germany but with with O2 I have. With T-mobile I had LTE but with O2 I don't, so I guess that's the reason.

Interesting... I've disabled LTE and now have it on 3g/GSM. We'll see how it works moving forward, and I'll post again in a week. Stay tuned.

Service Providers
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.

realTobbse said:
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.
Click to expand...
Click to collapse
Interesting.. I have LTE as part of my network and plan... But once I made changes to the settings as I indicated, I no longer receive the network drops I originally experienced.. I might just be missing the alerts, but it seems fixed... #crossedfingers

S6 Active on T-Mobile roaming data not working

Wondering if anyone can help me out. I've already spent hours on the phone with tmobile and they can't seem to solve it.
I've had this problem ongoing since getting this phone. Basically I get no data roaming. Places Ive tried: Canada (several cities in BC as well as Quebec and Ontario), UAE, Bahamas. I spend a lot of time in Canada so its a real issue. Things I have tried:
- Factory reset
- Upgrade to 5.1.1 using Odin.
- Try sim card in friend's phone (4G works no problem in Canada)
- A bunch of other stuff I don't remember
Symptoms:
- About 50% of the time the phone works for calls and text
- The rest of the time it says "emergancy calls only". Restarting the phone immediately restores ability to make calls/send text. This happens regardless of signal strength.
- Data connection never works. Only time I got 4G was the very first time I entered canada with this phone. . Restarting the phone would make it connect to 4G for about 1-2 minutes before it would lose data connection. Restarting the phone would bring it back. After about half a day the phone completely lost ability to make data connection and has never been able to get data connection internationally since then.
- Sometimes I get this message: "you have lost data connectivity because you left your home network with data roaming turned off". Data roaming is definitely turned on. I've enabled in settings and also via #RON# short code.

reobaird said:
Wondering if anyone can help me out. I've already spent hours on the phone with tmobile and they can't seem to solve it.
I've had this problem ongoing since getting this phone. Basically I get no data roaming. Places Ive tried: Canada (several cities in BC as well as Quebec and Ontario), UAE, Bahamas. I spend a lot of time in Canada so its a real issue. Things I have tried:
- Factory reset
- Upgrade to 5.1.1 using Odin.
- Try sim card in friend's phone (4G works no problem in Canada)
- A bunch of other stuff I don't remember
Symptoms:
- About 50% of the time the phone works for calls and text
- The rest of the time it says "emergancy calls only". Restarting the phone immediately restores ability to make calls/send text. This happens regardless of signal strength.
- Data connection never works. Only time I got 4G was the very first time I entered canada with this phone. . Restarting the phone would make it connect to 4G for about 1-2 minutes before it would lose data connection. Restarting the phone would bring it back. After about half a day the phone completely lost ability to make data connection and has never been able to get data connection internationally since then.
- Sometimes I get this message: "you have lost data connectivity because you left your home network with data roaming turned off". Data roaming is definitely turned on. I've enabled in settings and also via #RON# short code.
Click to expand...
Click to collapse
This sounds like a config issue to me. the random drops to emergency seems to be issues with roaming not being set up right. It sounds like your APNs are not setup correctly or something. have you gotten any info from t-mobile on Roaming APNs? i'm not sure if it needs to be adjusted for roaming or not.

Karlinski said:
This sounds like a config issue to me. the random drops to emergency seems to be issues with roaming not being set up right. It sounds like your APNs are not setup correctly or something. have you gotten any info from t-mobile on Roaming APNs? i'm not sure if it needs to be adjusted for roaming or not.
Click to expand...
Click to collapse
Yeh thats what it seemed like to me as well but I went over the APN settings with them on several occasions. I also looked them up online. Everything seems correct. The only thing they had me change was APN roaming protocol from IPv6 to IPv4/IPv6.

Dial *#*#4636#*#* (on stock dialer), in Device Information try to change network settings to LTE/WCDMA.
What are your APN settings? Provide info about all fields.

Did u ever solve this issue ? I'm having the same problem...