Yeah, I've posted in the official Dirty Unicorns thread about this issue, didn't find a fix. It was reported before I did by someone else here.
So here's the issue: I go into Settings>Wireless & Network>More...>Mobile networks> and check all the boxes (data enabled, data roaming, n'tl data roaming). Then, in System select, the default tick box is "Home only", meaning the phone won't roam. So I tick Auto: Domestic & Int'l, so when Sprint service sucks (which happens a lot where I'm at), and I think I'm good to go. See screenshot here.
But then, I hit back to go back to using my phone to do whatever: listen to music, play RUA2, whatever. If I go back into the same settings menu, the tick box for System select has reverted back to Home only. No roaming. I try this again, no dice.
tl;dr something is wrong with the settings, I can't roam.
What I've done so far: I've tried this on FL24, FI27, and EL29. I've cleared cache and dalvik, tried fixing permissions, clean flashing multiple times, and nothing worked. Then, I've flashed Slim Bean or ReVolt, and boom, the settings work, and I can roam as usual. Whaaaaaat? So yeah. I went back to DU (7-20), because it's my favorite JB ROM. I tried messing around with APNs, and it did nothing besides disable my data when I messed up and had to fix it with an EL29 boot, PRL update, and nandroid restore... I suspect it has something to do with APNs/DU settings.
You can help me out by confirming if, you're running DU, you have this issue too. This way I know it's a problem with my APN/PRL/modem/life.
Thanks, xda!
I had the same issue when I flashed DU. What worked for me was an app called Roam Control. Just select "roam only" wait a few seconds and then select "automatic." After doing that roaming should work as normal and if you go back to the mobile networks screen you'll notice that none of the radio buttons are ticked. Roam Control somehow overrides them.
Roam control is $4 and isn't in the play store but its well worth it.
http://www.roamctrl.com/
Good luck
I have that problem with any derivative of cm10.1. I also have a terrible experience with any modem I choose. For me, it was flashing the 00001 prl and always roaming (it does this automatically no matter which seeing you have checked under cdma settings in your rom) on Verizon in order to solve. This is the only way I can survive without losing my temper and smashing my phone since sprint sucks nuts. You can verify it working not only by the better reception, but also the app "not roam control" in the market. This one is free, and just shows you what carrier you are currently using for voice and data services. Mine has been Verizon ever since I flashed the prl, and I am once again loving my phone.
Sent from my SPH-D710 using xda premium
noobtoob said:
I have that problem with any derivative of cm10.1. I also have a terrible experience with any modem I choose. For me, it was flashing the 00001 prl and always roaming (it does this automatically no matter which seeing you have checked under cdma settings in your rom) on Verizon in order to solve. This is the only way I can survive without losing my temper and smashing my phone since sprint sucks nuts. You can verify it working not only by the better reception, but also the app "not roam control" in the market. This one is free, and just shows you what carrier you are currently using for voice and data services. Mine has been Verizon ever since I flashed the prl, and I am once again loving my phone.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
What's weird is that roaming works on other ROMs
wm388 said:
What's weird is that roaming works on other ROMs
Click to expand...
Click to collapse
Well, my roam settings showed that they would "stick" but by checking my service status (not roam control), said I was still using sprint network. Only until I updated prl did I get something worthwhile. It seems my phone likes aosp, cm 10, du much better than touchwiz, but touchwiz was in fact the only time roaming would actually work. And it was shotty at best. So by using the "always roaming" prl, I don't have to make any changes to anything any longer, and phone is working great. Just thought that might help you out as well.
Sent from my SPH-D710 using xda premium
noobtoob said:
Well, my roam settings showed that they would "stick" but by checking my service status (not roam control), said I was still using sprint network. Only until I updated prl did I get something worthwhile. It seems my phone likes aosp, cm 10, du much better than touchwiz, but touchwiz was in fact the only time roaming would actually work. And it was shotty at best. So by using the "always roaming" prl, I don't have to make any changes to anything any longer, and phone is working great. Just thought that might help you out as well.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I have just moved from the Virgin Moto Triumph running CM7 to the Virgin Galaxy S2 (E4GT). I loaded DU as my first custom ROM and am noticing horrible service no matter what modem I install. I have also tried modifying the roam settings because Sprint sucks around here.
May I ask what I need to do to load this 00001 PRL you are speaking of? I would be interested to see if this would help my service (or lack thereof). TIA.
Related
Background:
Ever since I've had this phone I couldn't get a data signal while roaming in areas where I knew one was available. Old phones would get data while roaming without a problem.
The Epic Touch would just give a notification saying "you have lost data connectivity" or something.
I understand certain Sprint roaming areas just plain don't have data available. This howto can not fix that.
What this howto does help you do is get a data signal while roaming in areas where a roaming data signal is available.
Credit:
This was apparently discovered by someone on the sprint forums, and I found a reference to it on the Android Central forums, so I do not know who credit goes to for discovering this.
What to Do:
It's best if you are in a roaming-only area to test this, or if you can force roaming. You'll also need to be on the stock kernel (rooted is fine) so you have the ability to update your Profile.
Let's do that now. Go to the Settings menu and tap About Phone - system updates - update profile and wait for it to complete, then tap ok.
From the home screen, tap Menu - Settings - Wireless and Networks - Roaming - Roaming Settings.
Un-check all options here (voice and data for both domestic and international)
With no boxes checked, tap the "Data" box under domestic roaming. Tap only this one, not voice.
You will get a box asking you to confirm. Click yes. This will then automatically enable voice as well.
Another pop up with a red box will ask if you really want to use data while roaming. At this point you can tell it to never ask again and click Roam.
Now you can use data while roaming where it's available!
Update:
after trying this multiple times to verify it works, occasionally the final pop-up with the red box disappears before you can read it. I was able to long press the home button to show recent apps, then tap the "Data Roaming Guard" app. Then I could tap Roam.
This is critical for me as sometimes I am in roaming areas for work and I need internet and this phone is the only access I have. Now I can use it!
Report back with any corrections or feedback. Mileage may vary.
I don't know if it's necessary to update the profile. I have that step in there because that is the sequence I used. If you try it without updating the profile, let me know. This would allow people on a custom kernel to do this too.
I spent an hour and a half with Sprint yesterday on the phone trying to resolve this. They turned me over to new reps three times (including to the international support department) each one not aware of my issue so I'd have to explain everything again.
Finally I started digging on the web and found the tip on AC. Took me 2 minutes.
DOH! Stupid Tapatalk.
Mods, please move to General. Didn't mean to start this in development.
Thanks for sharing this. I will try this out.
Sent from my PC36100 using xda premium
I have the same issues. My girlfriend has an EVO and she will have data while roaming, and I wont. Even if were right next to each other.
Thanks, this worked great for me & did not have to update profile. I am on stock rooted deodexed rom.
Worked for me! Thanks, that was very annoying!
thanks! now i can play wwf at work lol
I did this awhile back when I saw it on the AC forums. I also read this phone cannot roam on PCS networks because of a limitation in the radio so there still may be times it won't roam when other phones will.
Greetings All!
I was able to make roaming calls before; but I followed these instructions and now I can use roaming data as well. Fortunately Atlanta is a pretty good 4G metro area so I rarely need to use roaming data. Usually either 3G or 4G is available. Nonetheless it's nice to have the option.
FYI I forced roaming by using the Roam Control app and have verified that for the first time with this phone I have a nonzero "Sprint 3G Data Roaming" entry in the detailed usage screen on the Sprint website.
Many thanks!
Cheers, Henri
Ok, glad this is working for people! I know it was the biggest gripe I had about the phone by far.
MoMatt said:
Ok, glad this is working for people! I know it was the biggest gripe I had about the phone by far.
Click to expand...
Click to collapse
Agreed. And such a simple solution. Thanks again.
I noticed that I can no longer roam on my Sprint GS3. I used to be able to, back when I was using the rooted stock ROM, but now I just get no signal in places where I should have roaming coverage. I know this because my brother's GS3 will be roaming in an area where I'm showing no coverage.
I tried using the LI3, LG8, LG2, and LG9 radios. Have also tried several different ROMs, including AOKP, FreeGS3, and JellyBomb. I also had manually-loaded PRL of 11115, and then tried updating, which gave me 24006.
I also tried all the different tricks I'm aware of -- toggling airplane mode to see if it will choose a new network. And I've checked to make sure that roaming is allowed and isn't set to "Sprint only."
At this point, I'm thinking of going back to stock to see if that works. I'm not sure what to expect with that, though.
Has anybody experienced anything like this?
As far as I know, you arent able to roam on 3g. If you put the corporate prl on your phone, you can then roam on other carriers.
Oops, I should clarify. I can't roam at ALL... meaning no voice, no 1X data, nothing. It shows the "No signal" icon.
Make sure you have roamimg enabled in mobile network settings
Sent from my SPH-L710 using Tapatalk 2
Yes, I suffered the same thing yesterday. Until roam control is fixed I suggest looking at loading of Verizon prl in this situation. It is easy enough on this phone to do it and then switch to a sprint prl when you get back to your home area.
Also check Network settings, are you on "Automatic" or "Sprint"?
I had to toggle data and voice on and off until it gave me are you sure you want to roam message after that it started working.(In roam settings)
This is the Task650 and Ktoonsez AOKP. VERSION: d2att(4.1.2 JZ054K) from December 2nd release.
My data network goes in and out at random. It actually started happening about 4 days ago on an older build by Task650 & Ktoonsez but I saw the new one so wiped dalvik and Partition cache and rom'ed. Even after flashing the new ROM, data is acting the same way. It is completely random, happens when the phone is in use or when it is locked. I can tell when data connects for short spurts because I hear the notices for new emails. All in all today, I've maybe had 5 minutes of HSPA/3G data and the rest all I have is cellular network for calls. reception strong, and I am in areas where I always have good connection and speed.
Any ideas? Kind of frustrating if I am out to lunch and want to catch up on things (stuff is blocked at work). Also I am paying for data I can't use :/
fully wipe and reflash.. try a different modem
XTwarrior said:
This is the Task650 and Ktoonsez AOKP. VERSION: d2att(4.1.2 JZ054K) from December 2nd release.
My data network goes in and out at random. It actually started happening about 4 days ago on an older build by Task650 & Ktoonsez but I saw the new one so wiped dalvik and Partition cache and rom'ed. Even after flashing the new ROM, data is acting the same way. It is completely random, happens when the phone is in use or when it is locked. I can tell when data connects for short spurts because I hear the notices for new emails. All in all today, I've maybe had 5 minutes of HSPA/3G data and the rest all I have is cellular network for calls. reception strong, and I am in areas where I always have good connection and speed.
Any ideas? Kind of frustrating if I am out to lunch and want to catch up on things (stuff is blocked at work). Also I am paying for data I can't use :/
Click to expand...
Click to collapse
Mine changes between HSPA/3G while on a call. After call ends it goes back to 4G
Sent from my SGH-I747 using xda app-developers app
wujiku said:
fully wipe and reflash.. try a different modem
Click to expand...
Click to collapse
I am admittedly new to flashing, I just assumed everything was in the package. I flash the ROM and Gapps, is there a source for different modems?
This is definite disconnect of data DHTP. Can't get anywhere, and there is no symbol where there usually is on the reception bar. When it comes back for brief moments, it has either HSPA, 3g, etc.... on the bar.
are you able to send and receive calls? text?
I flashed that rom three days ago, and i had to replace it via warranty. it showed it had signal, but couldnt make any calls or text at all. then i Odin back to stock never worked again.
Don't think it has to do with any rom. Noticed that my wife's sgs3 has had a problem sending and receiving texts and the network drops a lot as well. She is completely stock with the jelly Bean update. My network has been a little suspect over the last few days also. Might just be the service.
Sent from my SAMSUNG-SGH-I747 using xda premium
Im having same issue...not new to flashing ..probably modm issue. working on it.
XTwarrior said:
This is the Task650 and Ktoonsez AOKP. VERSION: d2att(4.1.2 JZ054K) from December 2nd release.
My data network goes in and out at random. It actually started happening about 4 days ago on an older build by Task650 & Ktoonsez but I saw the new one so wiped dalvik and Partition cache and rom'ed. Even after flashing the new ROM, data is acting the same way. It is completely random, happens when the phone is in use or when it is locked. I can tell when data connects for short spurts because I hear the notices for new emails. All in all today, I've maybe had 5 minutes of HSPA/3G data and the rest all I have is cellular network for calls. reception strong, and I am in areas where I always have good connection and speed.
Any ideas? Kind of frustrating if I am out to lunch and want to catch up on things (stuff is blocked at work). Also I am paying for data I can't use :/
Click to expand...
Click to collapse
Hey Guys, I may have found the culprit...sort of.
The wife has an iP5 and she said to me while we are driving to a holiday party 'I finally have official 4G LTE on my phone'. To which I of course ask what she means. Apparently the same day I started not being able to connect to data networks, is actually the day that ATT fired up their 4G LTE tower(s) in the Lehigh Valley area. When I do get data on occasion, it's when I bump down to 3G and HSPA. Unfortunately, the ROM has a bug where I cannot force it to look for just 3G, I go to save the setting and it immediately jumps back to LTE.
I may just have to flash to a version that definitely supports 4G LTE data. This issue occurred before I flashed to newest ROM, so it has something to do with the core build or modem that both versions use.
Ngriffin, if you find any successful modems please let me know. I like the ROM but I can't go without a data connection much longer.
So, for those who care, I flashed Gapps and also Flashed a new modem (http://forum.xda-developers.com/showthread.php?t=1831898) version UCLG1 and it's a no go. A few in my area said it worked great for them so now I am a bit discouraged. Northeast Pennsilvania Area.
Modem coverage map (submitted by XDA users) https://maps.google.com/maps/ms?msi...ll=40.898982,-75.992002&spn=0.052809,0.111494
Versions tried:
LG1 -------------Did not work
LEM
LH9
LK3 -------------Works but only 3G data.
LH1
CLI5
More info, tested using the Wife's Ip5 and realized we don;t have LTE at our house, so I'll have to wait until we get withing range of the LTE tower(s) to see if it has an issue. However, I now have data reliably.
DHTP said:
Mine changes between HSPA/3G while on a call. After call ends it goes back to 4G
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
That's normal. LTE is data only and isn't used for phone calls.
I've been running Task's AOKP on my SGS II and III for a while with no data issues. Check your APN settings. If you're in an LTE area, you should be able to sit on the ATT LTE APN and have no problems, even away from LTE coverage.
Sent from my SGH-I747 using xda app-developers app
To update further, LK3 modem worked for a short while, but once I left the area of my immediate cell tower and it had to connect to another tower, it couldn't. I flashed ALL modems in my list a post above and NONE work. I'm kind of pissed right now.
Any ideas? I'll probably to a full backup and then flash a completely different ROM and cross my fingers. Is there an official JB stock ROM sans the bloatware that is stable and can connect to LTE (or any data network reliably for that matter)?
It was my APN *facepalm* Thanks for the suggestion. It was sitting on wap.cingular instead of the LTE and it was causing the issue. I'm on modem CLH1 and it is working, I have the 4G (3G) symbol now and data is connecting. Well, I learned something thanks! :victory:
XTwarrior said:
It was my APN *facepalm* Thanks for the suggestion. It was sitting on wap.cingular instead of the LTE and it was causing the issue. I'm on modem CLH1 and it is working, I have the 4G (3G) symbol now and data is connecting. Well, I learned something thanks! :victory:
Click to expand...
Click to collapse
Glad I could be of help.
Sent from my SGH-I747 using xda app-developers app
XTwarrior said:
This is the Task650 and Ktoonsez AOKP. VERSION: d2att(4.1.2 JZ054K) from December 2nd release.
My data network goes in and out at random. It actually started happening about 4 days ago on an older build by Task650 & Ktoonsez but I saw the new one so wiped dalvik and Partition cache and rom'ed. Even after flashing the new ROM, data is acting the same way. It is completely random, happens when the phone is in use or when it is locked. I can tell when data connects for short spurts because I hear the notices for new emails. All in all today, I've maybe had 5 minutes of HSPA/3G data and the rest all I have is cellular network for calls. reception strong, and I am in areas where I always have good connection and speed.
Any ideas? Kind of frustrating if I am out to lunch and want to catch up on things (stuff is blocked at work). Also I am paying for data I can't use :/
Click to expand...
Click to collapse
I started having issues with mine about the same time. I haven't been able to figure it out yet. I had just gone to JB and flashed a new ROM. Then started noticing not just data being very spotty but also my calls (both incoming and outgoing) were very spotty too. Both seemed to only work about 50% of the time. I have since completely wiped and factory reset twice. I even Odin'ed back to a stock Rout66 jelly bean system but I still have issues
I have updated my APN to ATT PTA but that hasn't helped. What APN settings did you go with? Is ther some specific for LTE coverage? On the stock system now I can actually see the LTE icon when it actually chooses to connect.
Also, where did you find other modems. I was told in another forum not to flash any that weren't specific to Jelly Bean and all I have found is the stock I747UCDLK3 which is already on my phone. I did try flashing that seperately just to see if that would help but did not.
I need to get my phone working pronto as it is my main phone for both business and personal phone calls. Any help would be greatly appreciated. Thanks in advance.
jroyjohnson said:
I have updated my APN to ATT PTA but that hasn't helped. What APN settings did you go with? Is ther some specific for LTE coverage? On the stock system now I can actually see the LTE icon when it actually chooses to connect.
Click to expand...
Click to collapse
I thought they changed the APN to "ATT PHONE"? Trying to find those details now.
EDIT:
AT&T Changing Default APN's... no more pta???
kinjo1023 said:
Don't think it has to do with any rom. Noticed that my wife's sgs3 has had a problem sending and receiving texts and the network drops a lot as well. She is completely stock with the jelly Bean update. My network has been a little suspect over the last few days also. Might just be the service.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Im on stock rooted rom and have the same problem. Have to reboot to get data back and its slow a hell for a while after.
Frustrating and still can't find a solution.
Sent from my SGH-I747M using xda premium
Grnfinger said:
Im on stock rooted rom and have the same problem. Have to reboot to get data back and its slow a hell for a while after.
Frustrating and still can't find a solution.
Sent from my SGH-I747M using xda premium
Click to expand...
Click to collapse
When you're on stock, only thing you can do is check with your carrier and they'll either tell you that it's something on their end being worked on or that your SIM card is faulty.
This happens to me on tasks AOKP ROM at least once per day, but it usually only happens when I turn on LTE. Basically what happens is the phone has cellular service but no data, after a few minutes it comes back. What I have noticed is that its to do with LTE so maybe there's a problem with that?
Sent from my SGH-I747 using xda app-developers app
pjcordi said:
This happens to me on tasks AOKP ROM at least once per day, but it usually only happens when I turn on LTE. Basically what happens is the phone has cellular service but no data, after a few minutes it comes back. What I have noticed is that its to do with LTE so maybe there's a problem with that?
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Task's AOKP doesn't set the default APN to LTE for Rogers so you might wanna make sure it's your default APN.
I just upgraded from the Evo 4g (good bye old friend) to the Galaxy S3. I've already noticed significant decreases in coverage which I understand is to be expected until all towers have been upgraded appropriately. The main problem I've been noticing is that when I go into roaming (which is covered on my plan) I lose voice. If I'm on the phone it disconnects me and if I try to make a call I get a "busy tone" or an automated message about making a collect call. I assume that's because I'm not provision properly to make calls on networks other than Sprint? Every time I call technical support, they think a simple reprogram will fix it, but it hasn't yet. Does anyone have experience with this, so that when I call them I can "suggest" what they may need to do in order to fix it?
Tell them that the reprogram didn't work
Also mention calling them a few times
There is also the can u talk to a superior/supervisor card (usable multiple times per call) and then there is the I'm returninf this phone and leaving Sprint last resort bluff card
Sent from my SPH-L710 using xda premium
gtuansdiamm said:
Tell them that the reprogram didn't work
Also mention calling them a few times
There is also the can u talk to a superior/supervisor card (usable multiple times per call) and then there is the I'm returninf this phone and leaving Sprint last resort bluff card
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
I literally tried all those options. Spoke with a supervisor and he still sounded like he had no clue. They said I will need to take my phone in to a tech to check it out. I doubt it's the phone though. It happens when I go into roaming, so it sounds to me like there's something wrong with the way they set up my s3. The nearest tech is 30+ min away and I'd love to avoid making that trip.
As of now, I am still getting the roaming message. It says "If you'd like to make a collect call press 1...." Has anyone ever gotten this message while roaming?
I have gotten this message when I dial out using various PRL's. Try updating your PRL. Maybe there are no roaming agreements in your area? Check your settings?
Neva Eva Forget 1984 said:
I have gotten this message when I dial out using various PRL's. Try updating your PRL. Maybe there are no roaming agreements in your area? Check your settings?
Click to expand...
Click to collapse
I've never had this problem on the Evo 4g. Would it have something to do with the fact that the GS3 doesn't search for the same towers as the Evo 4g and other older smartphones? I'm currently on 25010. How can I check if there are no roaming agreements in my area and wouldn't those have affected my Evo as well?
ctasich said:
I just upgraded from the Evo 4g (good bye old friend) to the Galaxy S3. I've already noticed significant decreases in coverage which I understand is to be expected until all towers have been upgraded appropriately. The main problem I've been noticing is that when I go into roaming (which is covered on my plan) I lose voice. If I'm on the phone it disconnects me and if I try to make a call I get a "busy tone" or an automated message about making a collect call. I assume that's because I'm not provision properly to make calls on networks other than Sprint? Every time I call technical support, they think a simple reprogram will fix it, but it hasn't yet. Does anyone have experience with this, so that when I call them I can "suggest" what they may need to do in order to fix it?
Click to expand...
Click to collapse
Check Settings/More settings/Roaming/Roaming settings and Roaming guard. Sometimes those items come misconfigured.
nabbed said:
Check Settings/More settings/Roaming/Roaming settings and Roaming guard. Sometimes those items come misconfigured.
Click to expand...
Click to collapse
I am on CM 10.1 Nightlies right now. Although, I've had the problem on stock as well. I've looked for comparable settings in CM, but don't see anything about Roaming Guard. Do I need to revert back to stock to ensure these are configured properly? Last I checked...everything had a check mark next to it. What does roaming guard do exactly anyway? Just prevent me from roaming?
ctasich said:
I am on CM 10.1 Nightlies right now. Although, I've had the problem on stock as well. I've looked for comparable settings in CM, but don't see anything about Roaming Guard. Do I need to revert back to stock to ensure these are configured properly? Last I checked...everything had a check mark next to it. What does roaming guard do exactly anyway? Just prevent me from roaming?
Click to expand...
Click to collapse
Try this if you like:
1) Nand backup,
2) Flash tw rom,
3) Settings/System update/Update profile,
4) Settings/System update/Update PRL,
5) Go to Settings/More settings/Roaming,
6) Set Roaming network to Auto,
7)Set Roaming settings to roam on domestic voice and data (on),
8) Set Roaming guard to off for domestic voice and data.
Now go to a place where you don't have any Sprint signal but think that there should be a roaming network signal.
If roaming doesn't work, it's likely that something is wrong with provisioning.
If it does, then restore nand backup and try in CM10.
And I don't really know what Roaming guard does, but I think it asks you for a confirmation before switching to a roaming network.
Reverted to stock and flipped off the roaming guard. Then restored my cm 10.1. I can finally make calls while roaming! Thanks for your help.
Sent from my SPH-L710 using Tapatalk 2
I finally got LTE locked on with Telus other users confirmed Rogers, AT&T and Bell(thanks) . No service disconnections, even while on wifi.
The problem I see is conflicting settings while flashing roms/modems. This seems to be the only fix. I'm pretty stoked I figured this out because I was about to switch back to my s2x out of frustration.
This took a lot of trial and error, literally had nothing to go on and no where in particular to start. Enjoy.
MAKE SURE YOU ENABLE LTE TOGGLE IN ROM AND HAVE IT ON BEFORE STARTING.
1. Network mode(settings/wireless & networks, more/ mobile networks/ network mode) set to gsm/lte/wcdma
2.Phone setting in test mode *#*#4636#*#* set to lte/gsm
at&t / rogers should select gsm/lte/cdma in test mode
3.Recovery flash latest modem mumLL1
(at&t users flash ucdlk3)
Wipe cache/dalvik
4 . Reset. Give it a couple mins to ask the network for lte.
If you disable Lte(through toggle) and want to use 3g/H+ for battery saving, the only way I've been able to reconnect to it; is to re enable(toggle) and reset, wait a couple mins to connect.
Side note: depending on your 4g service area, it may bounce around 3g/H+ which is normal.
When you place a call it will drop to 3g (the believed reason for this is that the phone knows you won't need heavy data so falls back to ease up on the battery during calls) but will reconnect a couple mins later. Our phones are slow to negotiate Lte connections with the radio testing sockets and network stability before committing, so be patient.
Let me know if this works for you and which network. Thanks.
Modems can be found here
http://forum.xda-developers.com/showthread.php?p=34397816
Re: Fixed service droping and locked LTE
To check if it worked. Go into test mode and it should say Lte in network type.
Xda I747
So does this mean we get no 3g?
Sent from my Mind using Telekinesis!
Yes everything works. I can unselect lte in my toggles and it drops to 3g/hspa. When I re-enabled lte I noticed that I have to make sure in network settings lte/gsm/wdcma is selected and reset phone.
Xda I747
O wow lucky u I can't unselect on Att lol
Sent from my Mind using Telekinesis!
Which rom are you on? Should be up in your toggles. Basically it changes you network settings from cdma/gsm to lte/gsm/cdma. But it conflicts sometimes.
Xda I747
Its there it just doesn't do anything because all the modems on the Att S3 are Rill locked or something so we don't have the option to do it so easily
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dark_intel you are the man, i finally have 4G
btw works on at&t
countrylife said:
btw works on at&t
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Just make sure you help spread this thread like a bad STD, this is a huge problem affecting many!
Worked for me on Bell Mobility.
Edit: Running CM10.1 (latest nightly)
No Test Mode using CM10.1 ROM
dark_intel said:
I finally got LTE locked on with Telus other users confirmed Rogers, AT&T and Bell(thanks) . No service disconnections, even while on wifi.
The problem I see is conflicting settings while flashing roms/modems. This seems to be the only fix. I'm pretty stoked I figured this out because I was about to switch back to my s2x out of frustration.
This took a lot of trial and error, literally had nothing to go on and no where in particular to start. Enjoy.
MAKE SURE YOU ENABLE LTE TOGGLE IN ROM AND HAVE IT ON BEFORE STARTING.
1. Network mode(settings/wireless & networks, more/ mobile networks/ network mode) set to gsm/lte/wcdma
2.Phone setting in test mode *#*#4636#*#* set to lte/gsm
at&t / rogers should select gsm/lte/cdma in test mode
3.Recovery flash latest modem mumLL1
(at&t users flash ucdlk3)
Wipe cache/dalvik
4 . Reset. Give it a couple mins to ask the network for lte.
If you disable Lte(through toggle) and want to use 3g/H+ for battery saving, the only way I've been able to reconnect to it; is to re enable(toggle) and reset, wait a couple mins to connect.
Side note: depending on your 4g service area, it may bounce around 3g/H+ which is normal.
When you place a call it will drop to 3g (the believed reason for this is that the phone knows you won't need heavy data so falls back to ease up on the battery during calls) but will reconnect a couple mins later. Our phones are slow to negotiate Lte connections with the radio testing sockets and network stability before committing, so be patient.
Let me know if this works for you and which network. Thanks.
Modems can be found here
http://forum.xda-developers.com/showthread.php?p=34397816
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Ok sounds promising but unable to get my ATT phone running ROM cyanogenmod10.1 03/04 nightly into Test Mode using the keypad code provided. This does work for stock ROM phones. Do you know any other way to get into the test mode?
Haven't tried stock. Im on cm10..
Xda I747
I'm on CM10.1 not stock.
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Yeah I'm pretty sure everyone is using cm10 or aokp. Not sure if stock is having these problems. If they were I'd be on the phone yelling at Telus.
Xda I747
So let me get this right. This fixes the signal jumping around on cm10/aokp ROMs?? That's the only reason I stay on a stock based rom. I'm tired of seeing my signal jump back and fourth from 4g to 3g etc. On stock I always have a rock solid signal. It does not jump around..... Thanks in advance...
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Yes for me and others didn't even get 4g, also it would completely go out of service. Now I get steady 4g.
Xda I747
Any alternative way to get into "test mode" other than using the keypad?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Sorry man, I tried looking around for a way. Could be the rom you're on. I know Liquid and Carbon are fine. Probably a couple more that I don't even know of, others have success with.
Xda I747
rpomponio said:
So let me get this right. This fixes the signal jumping around on cm10/aokp ROMs?? That's the only reason I stay on a stock based rom. I'm tired of seeing my signal jump back and fourth from 4g to 3g etc. On stock I always have a rock solid signal. It does not jump around..... Thanks in advance...
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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stock lies to and shows 4G all the time, cm10 and show the truth. the s3 sets at 3g until data is needed then transfers to 4g