Develop Bugs

[Q] 2.4 update broke 3g

I flashed 2.3.4 onto my 2.3.3 R800i and now I can no longer get 3g to work for anything other than messaging and phone calls. I've tried everything i could think of in the settings, any clue how I could fix this?

Did you put your apn settings in?
Sent from my R800a using XDA App

I had a problem with 3G long time ago after being abroad and using Airplane mode and/or data settings. Could not reactivate 3G for some reason and rebooting did not help but I had some on/off widget thing installed at the time and tried one of the 3G or data switches on it and it started working. Hope it helps

thatsupnow said:
Did you put your apn settings in?
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perhaps not, how do i go about doing this for rogers?

thatsupnow said:
Did you put your apn settings in?
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I spoke to a rogers agent to get the apn, thanks, wouldn't of know to do it otherwise

Right on man glad you got it worked out I went thru the same stuff when I first got my x10 it was a little frustrating but lesson learned
Sent from my R800a using XDA App

mine has a glitch where it switches the network it's assigned to by itself. Rogers shows up as two networks, one edge and one 3g/hspa, and I noticed if my reception is bad at a certain location it will sometimes switch to edge only, and not turn back. It's only been doing this after the update to 2.3.4
Edit/update: I figured out you can force the phone to never use edge, if you change it from wcdma preferred/gsm to only wcdma
Sent from the best phone ever

No Mobile Data Connection, IMEI Still Intact [AT&T]

For some reason, just stopped recieving connectivity for 4G/HSPA+. Worked fine after flashing over to TuchMi S3X, but today it just stopped. I checked if my IMEI was corrupted, it's not, matches what's under my battery. I also tried re-entering the APN settings, found here, to no avail. I have full bars, still receiving calls and texts, but can't get on the internet at all unless I connect to Wifi. I've also tried toggling airplane mode and restoring a Nandroid back up with no success.
I have an AT&T device, running this ROM, rooted through this method, with clockwork recovery flashed through the terminal emulator. This was done over a week ago when i got the phone, and I haven't had any issues until today.
What should I attempt to remedy the issue?
EDIT: The default APN is still in my settings, unable to be changed. Using the two provided from the above link, I can get the 4G icon to appear briefly before disappearing when switching between the two, but that's all I've managed so far.

I don't see that that rom us based on s original at&t rom and that could be your issue.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

What is your network type?
Settings > about phone > status > mobile network type
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

No 3g or wifi

Good morning,
I've been reading the forums for a while for solutions and tips but I am stumped on this one.
So I had stock Epic 4g (SPH-D700) on the Sprint network that was rooted and running CM 10.1 just fine. My USB connection broke so I bought a new motherboard so that I could switch to Cleartalk wireless, which required a connection for them to flash. They flashed the phone and while in stock, 3g data worked fine as well as phone calls and texting. Even stock though, with new motherboard, wifi did not work. It wouldn't even turn on to search for a connection. After rooting and flashing CM 10.1 while on the new Cleartalk network, 3g data now does not work and it gives me this error "unable to resolve host get.cm no address associated with hostname." Wifi still behaves the same. Calls and texts still work but I currently don't have any way to connect to the internet via 3g or wifi. Please help! I don't want to go back to stock just for connection.
Thank you!

rhoads77 said:
Good morning,
I've been reading the forums for a while for solutions and tips but I am stumped on this one.
So I had stock Epic 4g (SPH-D700) on the Sprint network that was rooted and running CM 10.1 just fine. My USB connection broke so I bought a new motherboard so that I could switch to Cleartalk wireless, which required a connection for them to flash. They flashed the phone and while in stock, 3g data worked fine as well as phone calls and texting. Even stock though, with new motherboard, wifi did not work. It wouldn't even turn on to search for a connection. After rooting and flashing CM 10.1 while on the new Cleartalk network, 3g data now does not work and it gives me this error "unable to resolve host get.cm no address associated with hostname." Wifi still behaves the same. Calls and texts still work but I currently don't have any way to connect to the internet via 3g or wifi. Please help! I don't want to go back to stock just for connection.
Thank you!
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Sounds like 2 issues here.
1. You probably forgot to connect the wifi antenna when you swapped motherboards.
2. You don't have your APNs configured for Cricket after flashing CM10.1.

nikon120 said:
Sounds like 2 issues here.
1. You probably forgot to connect the wifi antenna when you swapped motherboards.
2. You don't have your APNs configured for Cricket after flashing CM10.1.
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1. I will double check this as soon as I can.
2. Any idea how I can go about configuring the APNs? I saw a solution where I backup the APN's with an app while in stock then restore once CM 10.1 is flashed. Will this work for me?

rhoads77 said:
2. Any idea how I can go about configuring the APNs? I saw a solution where I backup the APN's with an app while in stock then restore once CM 10.1 is flashed. Will this work for me?
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This area gets very cloudy for me, as I'm a Sprint customer. Have you tried posting in the Cricket dev thread?

nikon120 said:
This area gets very cloudy for me, as I'm a Sprint customer. Have you tried posting in the Cricket dev thread?
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Not yet but I will. Is Cricket the same process as Cleartalk? I've never heard of Cricket.

rhoads77 said:
Not yet but I will. Is Cricket the same process as Cleartalk? I've never heard of Cricket.
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****, no it's not lol. Sorry, I misread. There isn't a ClearTalk thread in our dev forum that I'm aware of. You may want to search the entire XDA site and even Google for that carrier's APN info.

nikon120 said:
****, no it's not lol. Sorry, I misread. There isn't a ClearTalk thread in our dev forum that I'm aware of. You may want to search the entire XDA site and even Google for that carrier's APN info.
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No problem. I will try some things and update this thread with the progress. Thanks again!

So it isn't the hardware connection for the wifi problem. I checked everything and it still didn't work. I even reinstalled the old motherboard to make sure I had all connections right and the wifi worked fine. I just discovered the Bluetooth also doesn't work.
I haven't tried repairing the APN yet, I will update after I try.

Using "APN Backup and Restore" did not work. The app runs and says it is successful but doesn't actually restore the APN's. Or it does and that isn't the problem.

LTE Connection Possible Fix

I have noticed that there are people starting to notice that that have LTE in their frequenting areas, but it's messing with their data once they leave these areas.
For me it was having issues kicking back to edge and even 4G signals would not pull any data, would simply say that I had no connection. Didn't matter whether rooted or not or which rom I was using.
Anyway,
I have discovered somewhat a fix for this issue.
Under Connections tab in Settings, click more networks, then mobile networks, then Access Point Names my Access Point Name was epc.tmobile.com.
I noticed in other forums their APN should be fast.t-mobile.com so I thought I'd give it a try and incredibly my results were pretty good. It goes in and out of LTE areas pretty smoothly in comparison to losing data altogether.
Give it a try and report back.
Thanks

I was experiencing drop of data connection for long period of time (at least 5-10 mins) every time I leave the house, losing my wifi connection. More than once it just won't connect at all for a good couple of hours. I just did a test today, messing with the APN, network operator settings and get it to connect to 4gLTE. Once and turn on and then off the wifi, I lose the data again. And it wasn't gonna come back.
The fast.t-mobile.com address seems to do the trick and I'm now immediately on 4gLTE after losing wifi. and the speed is AMAZING at 24,000kbps download and over 10,000kbps upload.
Thanks!!!

I already had that APN setting but I wasn't getting ant 4G LTE :/ must not be in my area yet. I'm in north Georgia
Sent from my SGH-M919 using xda app-developers app

With thr default (epc..) APN, I had LTE before in NYC, DC, Boston. It just happened that the connection drop was getting more and more noticeable so I had to do something about it.
Sent from my SGH-M919 using xda app-developers app

I haven't changed anything, but mine is already showing fast.T-Mobile.com, and that's the only option there.
Sent from my SGH-M919 using Tapatalk 2

great find, I must have switched between 5-7 different roms trying to figure out why I'd lose data for up to 20min. after coming off wifi. Once I got reconnected to 4g I was afraid to even turn my wifi back on.

This seems to me to have just started recently, I'll have 4G but I might use the elevator at work and lose my connection, upon being back in service I'll be stuck on Edge for about 10-20 minutes before it picks up the 4G connection again.
I've been switching to Airplane Mode then back and that seemed to help but it doesn't any longer.
My APN is already fast.t-mobile.com, is there any other solution to fixing this?
EDIT: If I reboot my phone it connects to 4G immediately, and I'm using a Rooted Stock MDL Build w/ the Faux kernel.
Thank you!

MMakoto said:
I haven't changed anything, but mine is already showing fast.T-Mobile.com, and that's the only option there.
I have noticed before as well that roms default fast.t-mobile.com, but other times it would not. I could still get LTE with the epc..... but it wouldn't hold it.
Sent from my SGH-M919 using Tapatalk 2
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Saintfyre said:
This seems to me to have just started recently, I'll have 4G but I might use the elevator at work and lose my connection, upon being back in service I'll be stuck on Edge for about 10-20 minutes before it picks up the 4G connection again.
I've been switching to Airplane Mode then back and that seemed to help but it doesn't any longer.
My APN is already fast.t-mobile.com, is there any other solution to fixing this?
EDIT: If I reboot my phone it connects to 4G immediately, and I'm using a Rooted Stock MDL Build w/ the Faux kernel.
Thank you!
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Unfortunately I do not know of any other things that might help with LTE connection. I just stumbled on this and thought I'd share what worked for me.

Can anyone with fast.tmo take screenshots of their settings for that apn. My Rom doesn't have that and I would like to manually add it in. Thanks!
Sent from my SGH-M919 using xda app-developers app

Closed Source Project said:
Can anyone with fast.tmo take screenshots of their settings for that apn. My Rom doesn't have that and I would like to manually add it in. Thanks!
Sent from my SGH-M919 using xda app-developers app
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Sent from my SGH-M919 using xda app-developers app

What baseband are you guys on cause I dont have these issues on mdb baseband

hey I just want to say thanks man for discovering this.... it was a big help... I sent you a private message pretty much saying the same thing but figured I'd drop a comment on the thread too.... appreciate it
Sent from my SGH-M919 using xda premium

cwalker0906 said:
What baseband are you guys on cause I dont have these issues on mdb baseband
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I'm on the MDL baseband.
I'm looking is there a way to flash the MDB baseband?

Once and turn on and then off the wifi, I lose the data again. And it wasn't gonna come back.
The fast.t-mobile.com address seems to do the trick and I'm now immediately on 4gLTE after losing wifi. and the speed is AMAZING at 24,000kbps download and over 10,000kbps upload.

LG OPTIMUS G (SPRINT LS970) CRICKET FLASHED 3G INTERNET ISSUE (Erratic 3G)

I flashed the phone over to cricket but the 3g won't stay on, only way to get it to turn on is to switch from CDMA to LTE/CDMA and vice versa and then turning the mobile data off and on. But if you dont use the Data, it turns itself off again. Anybody know how to fix this?
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I'm having a similar issue with my Lg Optimus G LS 970 (Sprint) Flashed to Cricket. 3G Does not automatically come on and off. What I have to do is turn off and on the wi-fi multiple times in a row. then the 3G pops on. My data is very slow under 50K down and the 3g times out within 3 to 4 minutes. I tried at different locations around my city. I feel like i'm so close like one setting off.
I have tried re flashing the internet settings with multiple programs, tried simple and mobile ip, I almost think its a setting in the phone. What could be causing the phone not to automatically connect to 3g mobile data? Also why when it does connect the speeds are slow and the connection times out so fast?
This phone is awesome but not having reliable data out and about is killing me.
Oh more thing is it possible to configure the LTE radio on the phone now for when cricket brings LTE to the Portland Market?
Any body have any ideas?

Correction Turn on and off "data" multiple times to start the 3G data.

Simply flash with wireless workshop
Sent from my LG-LS970 using xda premium

Could you point me in the direction of how you flashed your optimus g? Ive flashed a lot of phones but never an lg

I have the sprint lg optimus ls970 & it is current still turned on through sprint. We tried to take it to cricket to flash it over but the rep said the es something was locked...we are tired of sprint and would love to flash ot over to cricket. What are we doing wrong??

Hello. I have the exact same problem you have when I flash mylg ls980 to PagePlus. Did you ever fix this problem? I flash 3G to all phones I do for pageplus. But when I flash my lg ls980 I get an error MIP: 67. I used the modified nv items posted by a user in another forum so the HDR USER/PASSWORD stick. And the settings in DFS all flash correctly. I tried installing the LG Provisioning APK but it never opens for me and force closes. So I'm thinking this problem is with the phone itself. In the settings of the phone. Because what will happen the 3G Symbol pops up. Then when I look in the settings- status, I will have 1x then EVDO. Then when the EVDO connects, the 3G data disconnects. So I'm very sure its a setting in the phone that I'm not aware of. Because the flash works fine. All my HDR/HA/AAA passwords are right. The DFS flash goes through smoothly. So, I'm not sure you know.... =( Look forward to your reply.

where is this modified nv item ?

Spelunker10 said:
Hello. I have the exact same problem you have when I flash mylg ls980 to PagePlus. Did you ever fix this problem? I flash 3G to all phones I do for pageplus. But when I flash my lg ls980 I get an error MIP: 67. I used the modified nv items posted by a user in another forum so the HDR USER/PASSWORD stick. And the settings in DFS all flash correctly. I tried installing the LG Provisioning APK but it never opens for me and force closes. So I'm thinking this problem is with the phone itself. In the settings of the phone. Because what will happen the 3G Symbol pops up. Then when I look in the settings- status, I will have 1x then EVDO. Then when the EVDO connects, the 3G data disconnects. So I'm very sure its a setting in the phone that I'm not aware of. Because the flash works fine. All my HDR/HA/AAA passwords are right. The DFS flash goes through smoothly. So, I'm not sure you know.... =( Look forward to your reply.
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Any update for this issue? I am having the same problem. I guess the AAA/HA keys didn't stick, so network disconnected after switching to 3G.

adadxbus said:
Any update for this issue? I am having the same problem. I guess the AAA/HA keys didn't stick, so network disconnected after switching to 3G.
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Hi. I figured out this issue for the LS980 but for the LS970 I was only able to get solid stable 1x. Good luck in your search.

Spelunker10 said:
Hi. I figured out this issue for the LS980 but for the LS970 I was only able to get solid stable 1x. Good luck in your search.
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Yes, I am actually using ls980. IS there any trick for this phone?

adadxbus said:
Yes, I am actually using ls980. IS there any trick for this phone?
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See my post this forum.
They have tons of info there.
http:// forum.gsmhosting.com/vbb/f770/flashed-lg-ls970-ls980-3g-connection-problem-1748423/