[Q] how to set GSM only network on AT&T Samsung SGH-i747 - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten

jitensetia said:
hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten
Click to expand...
Click to collapse
You can not do this. GSM/LTE/CDMA is the correct mode it should be on
Might I ask why you want to do that ?

hednik said:
You can not do this. GSM/LTE/CDMA is the correct mode it should be on
Might I ask why you want to do that ?
Click to expand...
Click to collapse
thanks for taking this up, actually I had 2G internet activated on my mobile plan. And when I set all the modes ON, it drains my battery fast and always jump my device from GSM to 3G and bounce back very frequently and my phone sometimes goes unreachable.
So previously when I was on stock ROM then it used to search only for 2G network and my battery also does not drain fast.

jitensetia said:
thanks for taking this up, actually I had 2G internet activated on my mobile plan. And when I set all the modes ON, it drains my battery fast and always jump my device from GSM to 3G and bounce back very frequently and my phone sometimes goes unreachable.
So previously when I was on stock ROM then it used to search only for 2G network and my battery also does not drain fast.
Click to expand...
Click to collapse
Could be that its a Verizon based rom. Try an at&t or T-Mobile based ROM. See if you have problem
Sent from my SGH-I747 using xda premium

jitensetia said:
hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten
Click to expand...
Click to collapse
I haven't seen your ROM but, on AOKP you would go to Settings>More>Mobile networks>Network operators and search for available networks. When search is completed, click on AT&T (there may be more than one showing.) After this, your selection of GSM/WCDMA will "stick." Unfortunately, it has to be repeated after every reboot.

Related

[Q] GSM network mode

I have noticed people managed to change their network mode to GSM only mode??? How do you that?? I only have 2 options: WCMDA and GSM/WCDMA auto?? Is this thing vary due to your courier?? Currently I am with 3 Australia. I wish I have the option to switch only to GSM. From experience, it can save you a lot of battery.
If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.
Dyonas said:
If you don't have the option then you can't pick it. I don't know if that means it's been removed or if it's simply because 3 don't offer a 2G network service (GSM mode). They probably have some 2G sharing but only in spots without 3G so you still have the GSM/WCDMA auto mode.
That's the best I can offer since I know that's how it works with 3 over here in the UK where they have only their 3G network. The firmware likely has GSM mode disabled for that reason but wait for more to back me up or prove me wrong.
Click to expand...
Click to collapse
I have a feeling it could be the ROM or firmware that comes with it has it disabled the GSM only option. My Desire HD is the UK version. I am not sure if the other Australian version (from Voda or 3) have that options. With my original desire (and also using 3), I have that GSM only option available. So I dont think it's because 3 doesnt offer 2G network.
Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.
LecterMe said:
Get Advanced settings from Market. You can set it to GSM Only in the phone information menu.
Click to expand...
Click to collapse
Thank you for sharing..yes, it works....but I will try out and see if it does save a lot of battery life.
Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk
ardsar said:
Type *#*#4636#*#* in the phone dialer to get to testing menu. Under phone info you can set different options that are not otherwise available. No app is required.
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Thanks for the info. I have tested both method...both work. But the only problem, how do we set it permanently?? I mean I have noticed every time you reboot the phone, the setting changes?? and I have to set it back to GSM only??
but even if you could technically switch it to gsm, would it actually make a difference? surely if the actual mobile network is pure 3g and no 2g, then switching on the phone wouldn't change a thing? as its not actually possible to use 2g on 3 network?(because they built network from scratch out of 3g is what they always boast about anyway..)
This is strange. I have an unbranded bought sim free HTC sensation here in the UK which Im using on the 3 network and I dont have the option under network to set it to gsm only. This option should be here on an unbranded handset, and its there on my old Desire which was also bought unbranded sim free when Im using that on the 3 network.
Anyone shed any light on this? I know the work arounds mentioned above, but Im more interested in why the option is missing on my handset.
Cheers
PS I know this is the Desire HD thread but its the only topic I could find on this subject so far.
I don't think it matters, just don't even bother with the settings menu for that in the first place. in the Testing menu just set the radio to either GSM Auto (PRL) or GSM Only. GSM gives more talk time.

Not getting LTE

Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
nt1 said:
Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Happened to me aswell, the only fix i could find is to go through the unbricking process to restore LTE connectivity, after that i changed my settings in *#*#4636#*#* and i lost LTE again. Only way i know of is to just do the unbricking process and flash whatever ROM you use, and avoid from changing the network settings via *#*#4636#*#*. Besides in cyanogen mod there is an option in the settings app to change networks and use 2g only. Changing network settings in settings app wont cause you to loose LTE once you change it back to the WCDMA/gsm mode in settings app again
nt1 said:
Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
I would try doing flashing a new basband/firmware and then doing a factory reset, if that doesnt help, then I would do the unbrick proccess. (takes about an hour)

(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] ATT signal troubles on H815 US

I purchased my phone (h815 US model) online from swappa and I love the feel and look of the phone, Love the camera, BUT my phone wants to stay on hspa all the time. Where i had 3 or 4 bars on my s5 active I get HSPA unless I go in to settings and sellect ATT:LTE from network operators which only last until my phone goes to sleep then im back on hspa. Anyone else experiencing this? Or anything i should try? Thanks in advance for any help!
Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!
Craleb said:
Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!
Click to expand...
Click to collapse
Maybe with hidden menu access via dialer,you can permanently enabled it...I don't know the actual code that might work for your device..but you can find it through here..In general threads maybe
I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.
Daptonic said:
I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.
Click to expand...
Click to collapse
Thank you @Daptonic . I was attempting to use the "ATT nxtgenphone" APN because it works better on ATT devices but I guess the ATT Phone APN is needed for non ATT devices. Rebooted phone and it went straight to 4g. Thanks for responding.
Edit: dammit, it went back to hspa again......

4g/Lte no connection after flashing RR

Hello,
since I updated my OnePlus 3 to the newest Resurrection Remix I have problems with LTE/4g. If i activate Mobile Data, i only get EDGE with a low bandwidth. I called my Mobile Provider and they said, that in my area LTE is working perfect. I eject the SIM Card and placed it into another smartphone and after two sec. i get LTE/4g with a high bandwith. A factory reset, returning to Stock Rom, deleting the APNs didnt work either. Is there any soultion fo this issue?
Maybe I crashed my modem ? Is it possible to flash everything back to Stock ?
Thanks
type *#*#4636#*#* in your phone dialer, phone info, scroll down and set prefered network type to LTE only. you will be unable to call while in this mode so do not have it turned on. just test it if your 4g works
timrock7 said:
type *#*#4636#*#* in your phone dialer, phone info, scroll down and set prefered network type to LTE only. you will be unable to call while in this mode so do not have it turned on. just test it if your 4g works
Click to expand...
Click to collapse
Thanks for your answer
tried this, but nothing happend...
No 4g, only EDGE
tim.knerrich said:
Thanks for your answer
tried this, but nothing happend...
No 4g, only EDGE
Click to expand...
Click to collapse
well then your phone is broken or your service provider is messing up. but you already called them and they said that it was all ok on their side. so that means there is certainly something wrong with your phone

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