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

I747m telus network problem

I have a problem with my telus i747m, I have unlocked it and am trying to use it on rogers but cant. I have tried different sims.
My problem is I dont have a network connection all the time. When I do have a connection as soon as i get a text or try to make a call the phone looses the network connection, when making a call the call gets through but the phone looses connection and the call then gets cut.
no data connection at all. I have rooted the phone and tried flashing the modem posted in development section but it did not help.
do you guys think its a hardware problem, or software?
also when no network is connected and I try searching for a provider it ask me to insert a sim. I have tried different sims and both work fine in another s3 i have.

The phone has a strong signal when it connects to the network and then as soon as the 4g pops up or after a couple of seconds the signal just drops and loses the connection. Then it will keep on getting a signal and instantly drop the network connection over and over again. i have another s3 i can try swapping parts but i dont know what to swap.
hellpppp meeeee!!!

Ok i used rf nv manager andbthe imei is fine.
Sent from my SGH-I747M using xda app-developers app

Anyone any imput. Im stumped
Sent from my SGH-I747M using xda app-developers app

js2021 said:
Anyone any imput. Im stumped
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
There is a specific Rogers modem that you can try flashing, other than that, I'm stumped.

finnmacool said:
There is a specific Rogers modem that you can try flashing, other than that, I'm stumped.
Click to expand...
Click to collapse
lol yeah its a odd problem. ill try flashing that, the modem listed here http://forum.xda-developers.com/showthread.php?t=1831898 says rogers, telus, bell is this what you are talking about?
thanks

update so i was about to try flashing the modem again, i poped in the sim turned on the phone and noticed the signal wasnt dropping when wifi was connected. I then shut of wifi and as soon as the 4g symbol poped up the network connection dropped, I then shut off data and got the signal back i havnt lost it sinse and i made a 40 minute call to rogers with no issue; I have full bars.
so it seems when data is turned on the network gets disconnected. hope this helps in finding the problem.
i played with the settings a bit and this is what happen:
GSM only + data enabled = phone works fine
HSPA only + data enabled = as soon as 4g pops up network drops
GSM/HSPA (auto) + data enable = as soon as 4g pops up network drops
GSM/HSPA/LTE(auto) + data enable = as soon as 4g pops up network drops
all of the settings work if data is disabled.

I have just flashed the latest bell jelly bean leak and still the same problem with data turned on phone loses connection.

I have the same setup (Telus SGS3 with Rogers sim) as you but don't encounter that problem. You might want to try to use your warranty for the problem as it shouldn't do that on stock in the first place.
Sent from my SGH-I747M using xda premium

Are you using the right rogers apn ?
try the modem: MVLLE8

No i tried the latest rom/modem from rogers. I will try that one and see what happens.
Sent from my SGH-I747M using xda app-developers app

js2021 said:
No i tried the latest rom/modem from rogers. I will try that one and see what happens.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Keep us posted !!!

cy-rock said:
Are you using the right rogers apn ?
try the modem: MVLLE8
Click to expand...
Click to collapse
yeah i tried manually setting the apn too. didnt make a differance, also tried the rogers mvlle8 modem no differance basically the phone works with data off, or only gsm with data on.
I have another s3 i thought it could be the sim holder or something tried swapping that, it didnt change anything. do you guys think i should try swapping the antenna

js2021 said:
yeah i tried manually setting the apn too. didnt make a differance, also tried the rogers mvlle8 modem no differance basically the phone works with data off, or only gsm with data on.
I have another s3 i thought it could be the sim holder or something tried swapping that, it didnt change anything. do you guys think i should try swapping the antenna
Click to expand...
Click to collapse
its getting tricky to play with that unless you have a good knowledge about wat you doiong and that you may have no offense here
wat about the warranty ?

I bought it used and have already opened it up to try swapping parts wwith my other s3, also have flashed it with custom rom and im guessing the previous owner did aswell because the flash counter was at 5 I think ive voided the warranty. Im pretty good at taking things apart and not afraid lol. I was a mechanic so yeah.
Sent from my SGH-I747M using xda app-developers app

Also last phone i warrantied i got back one month later
Sent from my SGH-I747M using xda app-developers app

any thing else i can try to flash, or any test i could run.

js2021 said:
I have a problem with my telus i747m, I have unlocked it and am trying to use it on rogers but cant. I have tried different sims.
My problem is I dont have a network connection all the time. When I do have a connection as soon as i get a text or try to make a call the phone looses the network connection, when making a call the call gets through but the phone looses connection and the call then gets cut.
no data connection at all. I have rooted the phone and tried flashing the modem posted in development section but it did not help.
do you guys think its a hardware problem, or software?
also when no network is connected and I try searching for a provider it ask me to insert a sim. I have tried different sims and both work fine in another s3 i have.
Click to expand...
Click to collapse
Check your APN settings. On stock, when I switched sim cards, the secondary provider didn't have any and they needed to be added manually.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I tried manually setting the apn, but no luck.
Sent from my SGH-I747M using xda app-developers app

im going to smash this thing with a hammer.
ok no im not but i feel like doing it.

[Q] Network Issue

Hi Devs,
I have a Problem with My PLAY R800i ,
it is that it doesn't connect to 2G network when I select 'GSM ONLY' in 'NETWORK MODE'
However it does conect to 3G when I select Dual Mode(GSM/WCDMA) .
The problem is 3G coverage is Not everywhere.
Right now I am on Xperia Play Express Rom ICS
and Kernel is DooMKernel
and Baseband is -36 baseband
Please let me know if u require More Info..

Re: BASEBAND
saz542 said:
Hi Devs,
I have a Problem with My PLAY R800i ,
it is that it doesn't connect to 2G network when I select 'GSM ONLY' in 'NETWORK MODE'
However it does conect to 3G when I select Dual Mode(GSM/WCDMA) .
The problem is 3G coverage is Not everywhere.
Right now I am on Xperia Play Express Rom ICS
and Kernel is DooMKernel
and Baseband is -36 baseband
Please let me know if u require More Info..
Click to expand...
Click to collapse
Even i am having Similar issues since 2 monhs... Please Help

Did you set your apns correctly?

I don't think devs case about this.
Check your APN settings.
Sent from XDA app

chery2k said:
Did you set your apns correctly?
Click to expand...
Click to collapse
eksasol said:
I don't think devs case about this.
Check your APN settings.
Sent from XDA app
Click to expand...
Click to collapse
Its Not Related to APN i guess...
as far as i Know APN is only if u want to connect to the internet....
My issue is that i only connect to WCDMA or UMTS rather than GSM network

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!

LTE/CDMA in ro.radio.networkmode screws up phone.

Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
UPDATE... looks like as long as i dont try to make a call the option to switch it back to auto is still there. One a call is attempted and fails the option to set to auto disappears.

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.

hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
fastwanabe said:
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.
Click to expand...
Click to collapse
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only

hyelton said:
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only
Click to expand...
Click to collapse
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.

fastwanabe said:
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.
Click to expand...
Click to collapse
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..

hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
hyelton said:
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..
Click to expand...
Click to collapse
I'm changing it under mobile networks.

Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app

fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Simple fix. Just select airplane mode for a few and then toggle it off and you'll see your network options come back once data roaming turns off and your carrier logo appears. I typically run lte/CDMA to get consistent lte speed bit when a callsade I have the same issue as you. But I just gave your the fix so your good
Sent from my LG-E980 using Tapatalk 2

Jammol said:
Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.

fastwanabe said:
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.
Click to expand...
Click to collapse
It would happen on any phone!!!!!