Develop Bugs

(NQ)Can't Get LTE on AOKP rom on Rogers 1747M

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

[Q] LTE Bell dies if using other roms?

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

Radio issues AGAIN!!!

Hi all, ever since stock went to JB 4.1, I can not get phone to work on any Rom. Any ROM I flash, many and all radio flash and kernel flash. No matter what, I can not get phone to work on any Rom, except stock rooted Roms. I have T-Mobile SGH-T989 SG2! I wiped everything, tried touch and non touch CWM and just can't get phone to work. I tried every radio that is posted and read all radio issue threads. I even started from a fresh Odin stock flash with wiping everything on phone and sd card as well as external format. All roms that I flash work, but cant not connect to T-Mobile! I even manually applied APN's. Some Roms will detect T-Mobile and it won't connect. Keep getting AT&T, but won't register. This is the second thread I started, but with only one response for help that I tried. PLEASE, anyone with some advice, Thanks!

flash the new uvmc6 radi and you should be good to go or if the new tel us one if your in canada

JesusWazBlack said:
flash the new uvmc6 radi and you should be good to go or if the new tel us one if your in canada
Click to expand...
Click to collapse
Tried that, Like I said: "Tried ALL radios", thx anyway!

It might be your sim card then. Try and get a new one or if its not that it could be a hardware issue

JesusWazBlack said:
It might be your sim card then. Try and get a new one or if its not that it could be a hardware issue
Click to expand...
Click to collapse
Doubt it is Sim card, phone works fine on stock JB (Rooted). Thx!

Try Network app from Market, and select GSM Auto (Prl).
Or go to settings, more, mobile networks and network mode and select GSM/WCDMA preferred.
Or go to EDGE / 2G only as a test.
In CM 10.1 and SlimBeam weeklies which I use, it seems to default to LTE/WCDMA. Since our phone does not have LTE, and very few T-mo markets have LTE, I found in some areas it would not register on the network at all until I changed the network preferences to one of the above because I presume the phone is trying LTE when the S2 doesn't have LTE. Also check your APN's? Just some suggestions.

You need a new phone perhaps then.
Seriously, with the new radio for T-Mobile or Telus, which are the only ones that work on all current roms (any others you've tried has been wasted time), and the correct apn settings, you shouldn't be having issues. Triple check radio is correct and apn.
You say your sim is fine.
So everything seems to be ruled out. And other than radio and apn, it can't be any settings, not after a clean install.
Phone busted is all that's left. Simple process of elimination. Well....if it somehow works on stock, but nothing else....then I guess your stuck with stock.
Thx.
P.s. getting snarky with people trying to help will certainly make most people, who may have ideas, just close the thread instead of trying to help.
Sent from my cell phone telephone.

kj2112 said:
You need a new phone perhaps then.
Seriously, with the new radio for T-Mobile or Telus, which are the only ones that work on all current roms (any others you've tried has been wasted time), and the correct apn settings, you shouldn't be having issues. Triple check radio is correct and apn.
You say your sim is fine.
So everything seems to be ruled out. And other than radio and apn, it can't be any settings, not after a clean install.
Phone busted is all that's left. Simple process of elimination. Well....if it somehow works on stock, but nothing else....then I guess your stuck with stock.
Thx.
P.s. getting snarky with people trying to help will certainly make most people, who may have ideas, just close the thread instead of trying to help.
Sent from my cell phone telephone.
Click to expand...
Click to collapse
What are you talking about, I thanked everyone who helped me here on this thread, how do you mean being snarky. I never was...whatever that means "Snarky" I just explained all I did and thanked all who helped me, so don't flame me, if that it what your doing!

LBN1 said:
Try Network app from Market, and select GSM Auto (Prl).
Or go to settings, more, mobile networks and network mode and select GSM/WCDMA preferred.
Or go to EDGE / 2G only as a test.
In CM 10.1 and SlimBeam weeklies which I use, it seems to default to LTE/WCDMA. Since our phone does not have LTE, and very few T-mo markets have LTE, I found in some areas it would not register on the network at all until I changed the network preferences to one of the above because I presume the phone is trying LTE when the S2 doesn't have LTE. Also check your APN's? Just some suggestions.
Click to expand...
Click to collapse
Thanks, I will try that!

[Q] TMO GS4 Network Modes on AT&T Network

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

Straight Talk data issues with custom roms using 4g LTE Verizon sim

Greetings everyone!
Signed up so that I can hopefully help someone else in need with their LG G3 phone using the Straight Talk 4G LTE Verizon sim card.
After many hours of flashing roms and trying out various things, it turns out for some reason other variants of the stock roms like Bliss Pop, CoudyG3, and Skydragon will not work with the data. I can still use my phone and make calls and i can still get text messages and even pictures sent through text messages, but for the life of me data would NOT work.
The only rom that did work again was the Jasmine rom. To my understanding it works pretty close to the stock verizon rom that comes with the LG G3. After the flash, BOOM! Everything worked and data came back to life.
I noticed the APN settings is very very different but this rom wont let you go in it to see it's settings. Surely there is a way to import/export the APN data to push on over to another custom rom? Just weird that after putting this specific custom rom data happily worked again.
BTW, if anyone tries to activate a verizon lg g3 with straight talk, be careful. Though their stupid website said that the phone was already registered with another tracfone provider/service, I was still able to get the phone to work. If after entering your MEID/EMI or whatever the numbers are and the straight talk website spits it back out at you, CALL straight talk. I got screwed and used up the network access code which somehow got lost into oblivion, but turns out that they themselves can manually add the Verizion 4G LTE sim card with the network access code card. (I bought the 4g LTE sim card package from wal mart). As long as the phone is in good standing, it will work!
Thanks. Hope this helps someone else out trying to get it to work with straight talk. I will try and see if there is a way to export this APN setting. I was told by straight talk that you don't need an APN set, but i think they are lying.
Peace!

solved
Back again,
Happy to report im using skydragon Rom with straight talk. Turns out you do in fact need to set the apn in the settings. Just add this apn
acct.tf.gw6.vzwentp
This is the apn for the Verizon 4g lte sim card when you use it. I didn't have to reset the phone but now data works great.

Hey question. I have a Straight Talk S3 currently running CM 11 kitkat based rom and things work great but I found other roms I want to install one of them being a Pac-Man custom rom but I have no data. I have a Verizon CDMA 4G LTE sim coming in acouple days just need the apn settings. Could anyone help me out with this? Thanx in advance for any help.
Sent from my SCH-S968C using xda premium

Surely it is the same APN setting as above. Try it out once you get your Sim card. Also, that S3 being a different phone may pick up on the access point names when you try another rom and set itself up, but if data is still not working, then try that APN I posted on the first post.
Also, be careful that you are actually connecting at LTE speeds as long as your area has it. Flashing to another rom I was only connecting at 3G. Turns out that once I tried another rom, you have to set the preferred network to LTE, then give the phone a reset. It took it a moment after reboot, but LTE finally showed up.
Depending on your phone, there are other settings to be set in it's hidden menu settings using the phones dialer. Just google around.
Hope this helps!