I'm just wondering if anyone else has noticed this and this only happens after a period of time where the LTE will just stop working but if you switch to CDMA it's working fine?
To go a step further I've wiped the phone and restored to stock. Once that's done LTE is working fine.
To go further again, I grabbed a different ROM and the exact samething happens, I'll be able to be on LTE for about a day and then the service stops and if I switch it to CDMA I'm good.
Just wondering if anyone else here has noticed that.
Cheers,
did you verify your APN settings?
i'm using a Bell version GN2 but on Fido and i can flash all day everyday and 4g has always worked.
SeraldoBabalu said:
did you verify your APN settings?
i'm using a Bell version GN2 but on Fido and i can flash all day everyday and 4g has always worked.
Click to expand...
Click to collapse
The APN settings are always the same with Bell. They don't change.
HSPA+ will work but LTE will die after a little while. (This only occurs on other ROMS). If I stay on the stock rom there's no problem.
fluxgfx said:
The APN settings are always the same with Bell. They don't change.
HSPA+ will work but LTE will die after a little while. (This only occurs on other ROMS). If I stay on the stock rom there's no problem.
Click to expand...
Click to collapse
On a different note... I noted that if I have SAMBA Fileshare on I have strange things that happens DATA wise.... I'm still looking into it and dropping logcat and looking at different possibility.
At this point it's looking like something with the SMB Fileserver I have on the phone. (Will know later on)
fluxgfx said:
The APN settings are always the same with Bell. They don't change.
HSPA+ will work but LTE will die after a little while. (This only occurs on other ROMS). If I stay on the stock rom there's no problem.
Click to expand...
Click to collapse
im not saying the bell apn has changed but ive found that sometimes when flashing roms, the apn settings arent included in the rom and have to manually be entered.
This happened alot when using my galaxy s2 lte.
Sent from my Samsung Galaxy Note II
Related
Hey All,
So, for some reason, I am unable to get LTE when i am flashed on the AOKP jellybean rom for the SGH-1747M (rogers)
I did everything that was stated in Task's Gerrit (Changed the connection for WCDMA to LTE/GSM auto), all that does is work for a while on H+, then disconnects.
I've changed my apn settings to the Rogers LTE settings, which just cuts off communication all together
Ive flashed Rogers Modems, still to no avail.
The thing that bothers me is that other sgh-1747M users claim to have been getting LTE on the AOKP jellybean rom.
My question is WHY AM I HAVING TROUBLE!!!??? I know the Rom was made for an At&T sgh1747, so people may say thats why its not working, but people with Canadian SG3's have been able to get LTE on the same ROM im having trouble getting it on.
If theres anything at all im missing, can someone please clarify exactly what im missing and what I should do to get it working.
I love the AOKP jellybean ROM, i keep going back to it, but the LTE not working just hurts my feelings (since I am paying for an LTE smartphone plan). PLEASE SOMEONE HELP!!!
PS: the first time I ever changed from WCDMA to LTE/GSM autom i got a 4G symbol for about 30 secs.....never seen it again! HELP!
i dont have a gerrit. so im unsure what you are talking about.
you need to add a canadian LTE apn and then do this...
Enter *#*#4636#*#* into the dialer
phone information
set preferred network type
change to LTE/GSM auto
task650 said:
i dont have a gerrit. so im unsure what you are talking about.
you need to add a canadian LTE apn and then do this...
Enter *#*#4636#*#* into the dialer
phone information
set preferred network type
change to LTE/GSM auto
Click to expand...
Click to collapse
sorry not gerrit. you stated the info above in one of your earlier updates, which I did. Didnt seem to work for me though. Are there any suggestions as to how I can possibly fix the problem?
KCtheGREAT said:
sorry not gerrit. you stated the info above in one of your earlier updates, which I did. Didnt seem to work for me though. Are there any suggestions as to how I can possibly fix the problem?
Click to expand...
Click to collapse
I'm not really sure. Being as I don't have a Canadian model its not something I can test. But I'm sure some Canadian users will be posting here to help you out soon.
when i try to change the preferred network it will not let me change it to anything else but to lte/gsm (prl) (i have the AT&T version)
task650 said:
I'm not really sure. Being as I don't have a Canadian model its not something I can test. But I'm sure some Canadian users will be posting here to help you out soon.
Click to expand...
Click to collapse
Yea, I know, thats what Im aiming for. I wouldnt ask you directly since I know its not something you directly deal with, but thanks alot for being the first to reply!
And keep up the great work Task!
dirtbikerr450 said:
when i try to change the preferred network it will not let me change it to anything else but to lte/gsm (prl) (i have the AT&T version)
Click to expand...
Click to collapse
Thats interesting. Maybe its because you are actually using at&t network. It works when I put it on LTE/GSM, but all I get is 3G and H+
Check your IMEI in about phone/status. If its showing 0, there's a thread for that.
If you're getting 4G icon and your mobile network status says LTE and are getting LTE speeds, then its cosmetic issue. I had that problem before.
What I did was I flashed Kyan's ROM 1.3 cause its based off of Rogers firmware. Once I verified I had LTE icon on Kyan ROM, then flashed the stock/rooted ROM after.
Sent from my SGH-I747M using xda app-developers app
cue_32 said:
Check your IMEI in about phone/status. If its showing 0, there's a thread for that.
If you're getting 4G icon and your mobile network status says LTE and are getting LTE speeds, then its cosmetic issue. I had that problem before.
What I did was I flashed Kyan's ROM 1.3 cause its based off of Rogers firmware. Once I verified I had LTE icon on Kyan ROM, then flashed the stock/rooted ROM after.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Interesting. I will try that method and see what happens. Thanks for the info; will post back with results soon
Ok, so after going through the whole process stated above, i WAS able to get a 4G symbol come every now and then. But before the connection actually finalizes and goes through (before it turns blue on the aokp rom), it disconnects and goes back to WCDMA preferred. I added the rogers LTE apn, and using that apn with the LTE/GSM auto selected allowed the 4G to come, but it keeps disconnecting. It even sometimes changes back to other apns on the list by itself
Anyone know if theres a way to lock the preferred network and apn settings?
enter apn settings, then REBOOT phone. After that, enter *#*#4636#*#* into phone dialer and go change to LTE/CMDA/GSM. that worked for me, I just needed to reboot my phone for the apn settings to work
JayDieu said:
enter apn settings, then REBOOT phone. After that, enter *#*#4636#*#* into phone dialer and go change to LTE/CMDA/GSM. that worked for me, I just needed to reboot my phone for the apn settings to work
Click to expand...
Click to collapse
didnt work for me, unfortunately. im just cursed
KCtheGREAT said:
didnt work for me, unfortunately. im just cursed
Click to expand...
Click to collapse
I stumbled upon this thread and the above solution using the dialer code. Worked instantly, no reboot required. I'm running R4INS AOKP Jelly Bean port on a Rogers SGH-I727.
veebomb said:
I stumbled upon this thread and the above solution using the dialer code. Worked instantly, no reboot required. I'm running R4INS AOKP Jelly Bean port on a Rogers SGH-I727.
Click to expand...
Click to collapse
Mine works until I reboot. Then it changes back to WCDMA. I'm on Telus.
LTE on canadian i747M (Rogers)
I had similar issue with LTE after flashing to AOKP rom. The fix provided by AOKP (after every reboot, type in *#*#4636#*#* and flipping the network type from WCDMA to LTE_only, then flip to LTE/GSM auto(PRL) ) works. LTE will show up as 4G. I have the 2012-09-30 AOKP build installed.
Yesterday all of a sudden I could not get LTE anymore. Not sure what happened as the only thing I did was to activate a new account on Google. Anyway the 4G/ flipping did not work anymore. Reflashed the rom several times, still the same issue, my phone will not get LTE/4G.
This morning tried the following and voila it worked, thought I will share this:
Flip the network type to LTE Only, there is no connection, REBOOT the phone.
1. After reboot, flip the network type to LTE Only again, this time, the connection worked - what a surprise/thrill.
2. Flipped the network type to LTE/GSM auto (PRL), connection was ok and 4G came on and stayed on. Did several reboots and repeated 1 and 2 and LTE/4G was ok.
Hope this helps.
I don't recommend you to use task aokp rom! You won't get LTE real speed and Dev won't help you since you are not an at&t user! He couldn't care less about the rest so try liquid jelly bean which is a lot faster and better or milestone 4 and aristodemo! They have better support although they are tw rom but worthy anyways
Rogers I747M
Sent from my SGH-I747 using xda premium
Task compiles that ROM based on AOKP source, but AOKP officially doesn't support att. Although I didn't have problems getting lte on his ROM the fact that you have to set it every time you reboot is why I am using cm10 for now otherwise it's a good ROM!
I'm having the same issues on my rogers branded s3. No matter what I do I can get lte to even appear. My apn auto rolls back to the provided apn and if I delete that I have no data at all. Hopefully this does have an answer because the Rom is amazing
Sent from my SGH-I747M using Tapatalk 2
Alright I think I have it figured out. I added the rogers APN related all others and the only change I made was I removed the info under APN type where it said internet+MMS and left it blank. Saved the APN rebooted and I have lte now. I even rebooted my phone and each time it boots up its showing 4g without having to play with any settings
Sent from my SGH-I747 using Tapatalk 2
I wondering if someone can help me. My Bell S3 can longer connect to 3g HSDPA or LTE I've tried about 8 different ROMs. So bizzare. Does anyone have an idea about this?
Sent from my SGH-I717 using Tapatalk 2
bhundt said:
I wondering if someone can help me. My Bell S3 can longer connect to 3g HSDPA or LTE I've tried about 8 different ROMs. So bizzare. Does anyone have an idea about this?
Click to expand...
Click to collapse
Are your APN settings correct (Settings -> Other -> Mobile networks -> Access point names)?
Do you have the right network type set (in Mobile networks as above, or by dialing *#*#4636#*#* and looking in Phone info under Set preferred network type)?
Similar problem
bhundt said:
I wondering if someone can help me. My Bell S3 can longer connect to 3g HSDPA or LTE I've tried about 8 different ROMs. So bizzare. Does anyone have an idea about this?
Sent from my SGH-I717 using Tapatalk 2
Click to expand...
Click to collapse
I have a very similar problem. Actually it started like you. First I installed cm10.1. Was working great except I had intermittent 3g and no hspa. I tried different modem without result on intermittent data but I least I had 3g. But all of a sudden I started getting no network at all. Not even voice. It seems my phone can no longer find any operator except for rogers. I tried aokp, goong back to cm10, no luck. Still no network..Ow i'm going back to stock and if it doesnt work well I dont know what elae to do. Hope someone here can help.
is your imei number still intact or has it changed?
Update
ebfortin said:
I have a very similar problem. Actually it started like you. First I installed cm10.1. Was working great except I had intermittent 3g and no hspa. I tried different modem without result on intermittent data but I least I had 3g. But all of a sudden I started getting no network at all. Not even voice. It seems my phone can no longer find any operator except for rogers. I tried aokp, goong back to cm10, no luck. Still no network..Ow i'm going back to stock and if it doesnt work well I dont know what elae to do. Hope someone here can help.
Click to expand...
Click to collapse
Update: ive looked in *#*#4636#*#* facility and discovered that I cant change the band to use. When I select the menu itwm I get no options. Whereas on my girlfriend phone there are options. Maybe it can help pinpoint the problem.
24680 said:
is your imei number still intact or has it changed?
Click to expand...
Click to collapse
+10 - Make sure you have an IMEI.
My problem is identical. If the imei is gone or changed what is the solution if any?
Sent from my SGH-I717 using Tapatalk 2
bhundt said:
My problem is identical. If the imei is gone or changed what is the solution if any?
Sent from my SGH-I717 using Tapatalk 2
Click to expand...
Click to collapse
The solution is to go here: http://forum.xda-developers.com/showthread.php?t=1801997&page=22
And fix it.
I currently have ATT service with my S3. I'm running the Intergalactic 3.0 at the moment and I absolutely love it. However - I just switched to T-Mobile. I want to keep my current phone and sell the free S3 they gave me so I don't have to deal with losing any information or anything like that. Can I get away with this on the ATT based ROM? IIRC T-Mobile and ATT run on very similar networks/frequencies. Any advice would be helpful here. If worst comes to worst and I have to use the T-Mobile provided phone, can I flash Intergalactic on it as well or do I have to choose from the T-Mobile ROMs on this site?
Thanks to everyone in advance.
You should be able to add the proper apn for t mobile. You also may want to flash one of the t mobile radios.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
I just switched from ATT to T-Mobile. I have an ATT SGS3 running Task's AOKP. APNs filled themselves in when I put the T-Mobile SIM in and everything works flawlessly.
bigbrd222 said:
I just switched from ATT to T-Mobile. I have an ATT SGS3 running Task's AOKP. APNs filled themselves in when I put the T-Mobile SIM in and everything works flawlessly.
Click to expand...
Click to collapse
Strange. I unlocked the phone, I was able to put in the SIM card and the APNs filled themselves. I was able to make calls and texts but unable to use internet. Any idea here? Using Intergalactic 3.0
To clarify - no internet at all. No Edge, GSM, or LTE
Synyster06Gates said:
Strange. I unlocked the phone, I was able to put in the SIM card and the APNs filled themselves. I was able to make calls and texts but unable to use internet. Any idea here? Using Intergalactic 3.0
To clarify - no internet at all. No Edge, GSM, or LTE
Click to expand...
Click to collapse
No idea. I'm not getting LTE, but I do get H+ and haven't looked into it yet. Maybe it's the ROM? I'm on Task's newest release.
bigbrd222 said:
No idea. I'm not getting LTE, but I do get H+ and haven't looked into it yet. Maybe it's the ROM? I'm on Task's newest release.
Click to expand...
Click to collapse
Strange. I went back and re-registered on the network through the settings and now it's getting 4g, just no LTE. At least it's working though!
Edit: Kinda. It worked for a minute then I locked/unlocked the phone and it didn't want to work any more.
Synyster06Gates said:
Strange. I went back and re-registered on the network through the settings and now it's getting 4g, just no LTE. At least it's working though!
Edit: Kinda. It worked for a minute then I locked/unlocked the phone and it didn't want to work any more.
Click to expand...
Click to collapse
I just changed the setting under settings-> network mode to "GSM/WCDMA/LTE" and now I do get LTE
So I recently got a T-Mobile GS4 for use on AT&T. I have set up the APNs, etc. and everything seems to be working, except for one annoying thing:
The device seems to be reverting it's Network Mode to WCDMA preferred instead of LTE/GSM Auto. I have tried setting this in Settings as well as in the Testing mode menu and it will not stick.
This happens every time the phone is booted, as well as when a call is made. When the phone is booted, it takes a long time to connect to the network, and when it finally does it is set to WCDMA preferred. I can then change it manually to be LTE/GSM auto.
When I make a call, the network drops from LTE to H/H+ as expected. However, after the call is completed, the network connection drops entirely and reconnects a short time thereafter but on WCDMA preferred.
Has anyone else experienced this issue, or have any ideas? If it makes any difference, I am running the latest CM10.2 for jfltetmo, without any other modifications.
Thanks in advance!
EDIT: I should add that the IMEI on file with AT&T is indeed for an AT&T LTE phone.
re: LTE/GSM
flinttownbrown said:
So I recently got a T-Mobile GS4 for use on AT&T. I have set up the APNs, etc. and everything seems to be working, except for one annoying thing:
The device seems to be reverting it's Network Mode to WCDMA preferred instead of LTE/GSM Auto. I have tried setting this in Settings as well as in the Testing mode menu and it will not stick.
This happens every time the phone is booted, as well as when a call is made. When the phone is booted, it takes a long time to connect to the network, and when it finally does it is set to WCDMA preferred. I can then change it manually to be LTE/GSM auto.
When I make a call, the network drops from LTE to H/H+ as expected. However, after the call is completed, the network connection drops entirely and reconnects a short time thereafter but on WCDMA preferred.
Has anyone else experienced this issue, or have any ideas? If it makes any difference, I am running the latest CM10.2 for jfltetmo, without any other modifications.
Thanks in advance!
EDIT: I should add that the IMEI on file with AT&T is indeed for an AT&T LTE phone.
Click to expand...
Click to collapse
What I would do to solve this problem is to first go into recovery and make a nandroid backup.
The problem you are having is due to the fact that you are running CM10.2 rom which perhaps
is not 100% compatible with your specific phone and or carrier.
What you need to do is to flash an AT&T custom rom OR better yet flash Darthstalker's
AROMA Multi-Carrier rom and select AT&T after the rom starts flashing.
That way it will not only flash a proper AT&T rom but it will also flash the
proper kernel which you need if you want to use it on AT&T as well as
setting it up with the correct APN's which will stick.
The Darthstalker rom can be found here: http://forum.xda-developers.com/showthread.php?t=2292054
This rom has a lot of extra features, settings and options making it one of the best roms around
especially for someone like you who wants to use a tmobile phone on the AT&T network.
Give it a try, I am certain it would perform really well for you without any issues.
Good luck!
Thanks for the info. Looks like that is a TouchWiz ROM though... I'm looking for an AOSP one... Will look more
Sent from my Nexus 7 using XDA Premium HD app
Misterjunky said:
What I would do to solve this problem is to first go into recovery and make a nandroid backup.
The problem you are having is due to the fact that you are running CM10.2 rom which perhaps
is not 100% compatible with your specific phone and or carrier.
What you need to do is to flash an AT&T custom rom OR better yet flash Darthstalker's
AROMA Multi-Carrier rom and select AT&T after the rom starts flashing.
That way it will not only flash a proper AT&T rom but it will also flash the
proper kernel which you need if you want to use it on AT&T as well as
setting it up with the correct APN's which will stick.
The Darthstalker rom can be found here: http://forum.xda-developers.com/showthread.php?t=2292054
This rom has a lot of extra features, settings and options making it one of the best roms around
especially for someone like you who wants to use a tmobile phone on the AT&T network.
Give it a try, I am certain it would perform really well for you without any issues.
Good luck!
Click to expand...
Click to collapse
On second thought it would be a good idea to try this to see if the problem is eliminated. In the meantime, do you know of any AOSP ROMs that might have the same type of solution?
Sent from my SGH-M919 using XDA Premium HD app
I'm on slimbean ROM and works great plus I also have a T-Mobile S4 on at&t and never had an issue like that and you could try to flash the ATT_CSC_fixer2-1.zip
Sent from my SGH-M919 using XDA Premium 4 mobile app
I've had my T-Mobile GS4 on ATT for a few months now and have had no problem with LTE after they had my phone's IMEI, and I was using the correct APN. This is the case on many TW and AOSP ROMs that I've tried. Good luck!
Sent from my SGH-M919 using Tapatalk
same here i have an m919 rooted stock mdl rom on at&T and have no such issue mine stays on lte.. both with phone or pta ap.. Have you tried reflashing and factory reset before setting stuff up...
Thanks to everybody for the info. I finally got it working:
I first backed up to the Touchwiz ROM mentioned and made sure data was working. Here I had to manually add the APN and then the settings stuck after reboot, calls, etc.
Then, I reinstalled CM 10.2 for jfltetmo. Magically, the setting is now sticky.
Thinking about it, I got the phone, unlocked it, and immediately installed CM without attempting to use the ATT sim card at all. Perhaps TW does something to make this stick, but I have no idea.
Sent from my SGH-M919 using XDA Premium HD app
Since i changed a new rom(cm11) for my unlocked i747, I could not receive any hspa+ internet(I am using h2o). at the begining, i thought it was because of the lost imei, so i fixed it, but it was not working. then i opened *#*#4636#*#*, and selected wcdma perfered, it changed to h+, but about 1 min later, it turned back to Edge. if i select wcdma only, I can use h+ 1min and then no more signal even edge. also cannot make phone call and texting. i dont know why. the APN setting is right. and anyone tells me what should I do. thanks very much!
Try flashing your stock firmware your modems might be screwed up
Sent from my ATT Samsung Galaxy SIII using TapaTalk
crazymonkey05 said:
Try flashing your stock firmware your modems might be screwed up
Sent from my ATT Samsung Galaxy SIII using TapaTalk
Click to expand...
Click to collapse
i had tried some other rom. i even regressed it to the originally official rom. it was will EDGE. I wonder the possibility is that some important files has lost. but i didnt find any solutions.
These seem like pretty routine questions but have you checked to see if another phone has the same reception problems?
Sent from my ATT Samsung Galaxy SIII using TapaTalk
BlakeGuo said:
Since i changed a new rom(cm11) for my unlocked i747, I could not receive any hspa+ internet(I am using h2o). at the begining, i thought it was because of the lost imei, so i fixed it, but it was not working. then i opened *#*#4636#*#*, and selected wcdma perfered, it changed to h+, but about 1 min later, it turned back to Edge. if i select wcdma only, I can use h+ 1min and then no more signal even edge. also cannot make phone call and texting. i dont know why. the APN setting is right. and anyone tells me what should I do. thanks very much!
Click to expand...
Click to collapse
Try google ... peoplearmy LTE restore IMEI .... to get your LTE back. Let me know if you cannot find the link.
Good luck
LARMYV said:
Try google ... peoplearmy LTE restore IMEI .... to get your LTE back. Let me know if you cannot find the link.
Good luck
Click to expand...
Click to collapse
I had fixed the IMEI, the number is exactly. but still not working on H+ internet.