Develop Bugs

[How to] disable LTE on AT&T S3 (you can disable HSPA+ too)

I have read that you can change your APN settings to turn off LTE. However, I found another way (with the help of carefreelife). Use at your own risk! I am not responsible for any harm you may do though it seems fairly safe to me!:
UPDATE: THERE IS NOW AN EASIER METHOD TO DO THIS WITHOUT PULLING THE SIM AND REBOOTING (check out post #47 below or use this link)
http://forum.xda-developers.com/showpost.php?p=37310325&postcount=47
[OLD METHOD]1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.[/OLD METHOD]
I was attempting to follow this procedure for the S2:
{Trick} Get Around "RAT SELECTION RESTRICTED" on i897 modems! - xda-developers
...but I couldn't get the SIM out easily so I left it in...and followed the steps. It wouldn't recognize that the SIM had been reinserted so I gave up and rebooted...and it worked! No need to mess with airplane mode or anything just follow the steps above.
I was then able to follow the same procedure and turn back on the default setting which was "1) Automatic". After a reboot I am again connected to LTE.
Reason I'm using this: I'm testing a major battery drain issue that might be related to LTE/HSPA+ switching.
Reason you might want this: If you have poor LTE signal or even poor HSPA+ signal and want your phone to stop trying to connect to that network, this will stop it.
UPDATE:
A little bit of bad news here:
I have been on "WCDMA All" (HSPA+ aka 3G4/G, with LTE disabled) for 10 days now with ZERO problems whatsoever.
However, I am pretty sure that whichever you choose, if not "Automatic", you will be locked to ONLY that band:
i.e. if you choose "WCDMA All" you will not only be disabling LTE, but also 2G (EDGE) as well. You may not need it (and if so, it will not effect you) - but if your phone loses the HSPA+ signal, it will not fall back to 2G unless you change the setting.
I tested this theory by setting my phone to "LTE all" and trying to call myself from another phone. The call went straight to my voicemail. LTE is data only (for now) and when you receive a call, it switches to HSPA+. Unfortunately, since I had set my phone to "LTE All", it stayed on LTE and could not receive the call.
This may not be a deal-breaker but it's something to be aware of, for sure. I only tested "LTE All" because it was easy to do so, but I am assuming the same applies for the other settings...only "Automatic" would seem to pick the best available network.
Click to expand...
Click to collapse

Edited OP and changed thread title. Please help me test this. Thanks!

Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.

fortesquieu said:
Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.
Click to expand...
Click to collapse
Yes, it is disabled on AT&T versions. If you try the method I listed above without removing the SIM card, it will be blocked as well.
AT&T does not want us to have any control over which network we connect to. It's been speculated that they want us forced on to LTE to take strain off the HSPA network. Honestly I think that's fine - though I prefer to have a choice - except that I suspect LTE switching is causing my battery drain issue and I need to turn it off in order to test that theory.
http://forum.xda-developers.com/showthread.php?t=1811182

carefreelife at Android Central forums showed me that WCDMA All is the proper setting to disable LTE and stay on HSPA. It's working for me and seems to be perfect!

Curious,why dont u want LTE?
Sent from my SAMSUNG-SGH-I747 using xda premium

bbgt2 said:
Curious,why dont u want LTE?
Click to expand...
Click to collapse
Testing to see if it's causing the battery drain issue described in this thread:
http://forum.xda-developers.com/showthread.php?t=1811182

Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Sent from my SAMSUNG-SGH-I747 using xda premium

bbgt2 said:
Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Click to expand...
Click to collapse
My battery life is great too - there just seems to be a bug that causes it to suddenly become terrible and drain fast until it's rebooted. This is just a method I'm using to test it.
It's possible that disabling LTE can increase battery life but I'm not sure there's any evidence that LTE uses more battery than HSPA+. On older phones the LTE was not integrated into the SoC and thus was a power hog...but it's integrated on the S3.
For users who are on fringe areas and receive poor LTE or HSPA+ coverage...the phone will use extra battery trying to connect and stay connected to those...even if it's [mostly] unsuccessful. Using this method would be a good idea for people who would rather just stay on the bands with strong signal and stop wasting battery trying to get on LTE or HSPA+ fruitlessly.

Thanks a lot for this I've been wanting to switch to 2g only THANKS

Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
Sent from my GSIII
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Sent from my GSIII

I can't get into the screen.. Always get some error after entering *#2263#

DudeWatsThat said:
Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Click to expand...
Click to collapse
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
X10D3 said:
I can't get into the screen.. Always get some error after entering *#2263#
Click to expand...
Click to collapse
What's the error you get? Are you using an AT&T Galaxy S3?

jeffreii said:
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
What's the error you get? Are you using an AT&T Galaxy S3?
Click to expand...
Click to collapse
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Sent from my GSIII

Does nothing. When I hit send it just says invalid mmi code.
Sent from my SAMSUNG-SGH-I747 using xda premium

DudeWatsThat said:
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Click to expand...
Click to collapse
I can't say anything for sure until I get about 1 week of uptime with no plummet. It's been stable (battery and signal) since I enabled it, though.
X10D3 said:
Does nothing. When I hit send it just says invalid mmi code.
Click to expand...
Click to collapse
You shouldn't even have to hit send...as soon as you hit the second # it should go straight to the menu.
*#2263#
I can't guarantee this works with any modifications to stock as I have only done it on my unrooted stock AT&T S3.

CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?

Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.

X10D3 said:
CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?
Click to expand...
Click to collapse
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
ComradeNF said:
Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.
Click to expand...
Click to collapse
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!

jeffreii said:
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!
Click to expand...
Click to collapse
I'd also love to know if 2G works, but I can't while in North California. There isn't a single place within a 20 mile radius of where I live that doesn't have full LTE and HSPA+ coverage since so many people live here. I go to college in a fairly rural area in California though so in late September I'll be able to confirm if we can get 2G with the WCDMA method.

(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 Note on Tmobile network

Hi
I have a ATT Note 2 with a t-mobile sim in it with ATT rom/modem/etc. The HSPA worked for like 2 minutes and never worked again. 2g works fine.
Has anyone gotten 3g/3g+ working one ATT note 2 on the tmobile network?
I know note works but couldnt find an answer for Note 2.
Please advice!
Thanks

^^^^^^ 2nd this.
ready to acquire GN2 ATT from local CL. but since i use t-mo cheap 5gb data plan, i am not sure how to benefit the plan. just a thought, you said HSPA worked for 2 mins (or so..) ? did you do any browsing/data usage and get result ? or just monitor the signal bar switching from H+ to E ?

mailistman said:
^^^^^^ 2nd this.
ready to acquire GN2 ATT from local CL. but since i use t-mo cheap 5gb data plan, i am not sure how to benefit the plan. just a thought, you said HSPA worked for 2 mins (or so..) ? did you do any browsing/data usage and get result ? or just monitor the signal bar switching from H+ to E ?
Click to expand...
Click to collapse
I did a speed test and got 5mbps download. I also have the 5gb plan. There must be a way to get it to work!

Check and make sure your apns are correct.
Sent from my HTC One X+ using xda premium

hyelton said:
Check and make sure your apns are correct.
Sent from my HTC One X+ using xda premium
Click to expand...
Click to collapse
as far as I can tell APN is all correct

vish said:
as far as I can tell APN is all correct
Click to expand...
Click to collapse
Anyone?? thx!!

Just a shot in the dark but have u deleted the apn and then created a brand new one?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

jyazzie110 said:
Just a shot in the dark but have u deleted the apn and then created a brand new one?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
I have tried different roms.. so in that process yes.. this time i will delete and try again

vish said:
I have tried different roms.. so in that process yes.. this time i will delete and try again
Click to expand...
Click to collapse
Has anyone tried flashing a t-mobile modem?
Sent from my SAMSUNG-SGH-I317 using xda premium

I did - it gave me no service

Did you tried flashing a T-Mobile ROM??

yes didnt work either..

@ vish :
another shoot in the dark, do you think it has a relation with the phone being unable to toggle to 3G / UMTS mode ? will you please flash the t-mo radio back and tried :
1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.
source : http://forum.xda-developers.com/showthread.php?t=2046355&page=2
please report back if you do so.

I had same problem would only hold 4g a short time than go to edge and stay theere and speed tdest were horible reboot and 4g agin with great speed test and a few minits latter back to edge but not with jedi x 6.1.2 seems to be holding 4g

rexamillion59 said:
I had same problem would only hold 4g a short time than go to edge and stay theere and speed tdest were horible reboot and 4g agin with great speed test and a few minits latter back to edge but not with jedi x 6.1.2 seems to be holding 4g
Click to expand...
Click to collapse
so with jedi ROM x 6.1.2, 4g signal stays intact ? can you please do speedtest & post it here ?
btw : this 4g signal, supposed to be H+ in t-mobile ? or is it just UI issue ?

mailistman said:
so with jedi ROM x 6.1.2, 4g signal stays intact ? can you please do speedtest & post it here ?
btw : this 4g signal, supposed to be H+ in t-mobile ? or is it just UI issue ?
Click to expand...
Click to collapse
Sorry for the late reply - i tried flashing tmobile model and I got either bootloop or no service. Even with the sim card out.
Any other ideas?

Are you sure you are in a refarmed area? Cause if not you will ONLY get EDGE

^^^ what he said. T-Mobile is refarming their network to be compatible with AT&T's 3G frequencies but only in certain cities right now. Check their website, it tells what cities. They may be testing in your area. Otherwise you'll only get edge because the note 2 can't do what the note 1 did. It's an exynos thing.
Sent from my Note 2

AT&T Note 2 on T-mobile 3G/4G?
mailistman said:
@ vish :
another shoot in the dark, do you think it has a relation with the phone being unable to toggle to 3G / UMTS mode ? will you please flash the t-mo radio back and tried :
1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.
source : http://forum.xda-developers.com/showthread.php?t=2046355&page=2
please report back if you do so.
Click to expand...
Click to collapse
Has anyone tried this SIM card release thing to force 3G on t-mobile network on a AT&T Note 2 phone? did it work? or did I misunderstand this post to be a solution to getting 3G/4G on tmobile network?
Please help

Only edge will work. Get a t mobile device or switch to att.

SOS. my phone stuck on EDGE

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.

AT&T Unlocked Note 5 on T-Mobile

Hello is anyone using the AT&T Note 5 unlocked on T-Mobile? I'm having issues with calls on this device and wanted to know if anyone else was having problems. When I went to T-Mobile they told me they had upgraded their towers and because my phone wasn't the T-Mobile variant it could no longer access the call service.
Any help is appreciated

Unable to receive calls whatsoever.
Spoke to Tmo and they said they've done some upgrades on the network and they're seeing this issue a lot more now with non-tmobile phones.
I'm now looking around to see if there are any radio/kernel/rom flashes that can help solve the issue.

gamefreakgcb said:
Unable to receive calls whatsoever.
Spoke to Tmo and they said they've done some upgrades on the network and they're seeing this issue a lot more now with non-tmobile phones.
I'm now looking around to see if there are any radio/kernel/rom flashes that can help solve the issue.
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https://youtu.be/FALiQvle78E try this. and https://youtu.be/HFKOsuHROIE

maheshwar said:
https://youtu.be/FALiQvle78E try this. and https://youtu.be/HFKOsuHROIE
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Hey thanks for the videos, but I have no idea what they're actually changing in the 2nd one and I dont have the app/shortcut used in the first video.

yo need an app called shortcut master lite

I have idea which code you added to the app. Is it possible for you enable touch pointer in Developer settings to show where you're actually touching the screen? You move too fast to follow in the video.
And which ones you added? Or did you follow any guide online?

gamefreakgcb said:
I have idea which code you added to the app. Is it possible for you enable touch pointer in Developer settings to show where you're actually touching the screen? You move too fast to follow in the video.
And which ones you added? Or did you follow any guide online?
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Here you go https://youtu.be/j0p3F7uNnTo

maheshwar said:
Here you go https://youtu.be/j0p3F7uNnTo
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Thanks. What version of the ROM do you have? I dont have the last 4 options in the IMS Settings.

gamefreakgcb said:
Thanks. What version of the ROM do you have? I dont have the last 4 options in the IMS Settings.
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7.0 with June 1st security update. Make sure you turn off wifi and be on lte.

maheshwar said:
7.0 with June 1st security update. Make sure you turn off wifi and be on lte.
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Thank you for everything. But I do not see any change and still unable to receive calls.
Guess I'll have to look for another phone.

Got same issue.. U guys found any work-around??

Yup I got the same issue in NYC area too, TMO is not helping at all

Yes *2263# and unlock all your bands. TMO likes to use dedicated bands for RX and TX

For me setting the bands to automatic was the issue, if I set it to GSM and LTE it works fine. *#2263# > [1] Band Selection > [7] LTE/GSM Auto [*]

It works thank you!

JoseGR52 said:
For me setting the bands to automatic was the issue, if I set it to GSM and LTE it works fine. *#2263# > [1] Band Selection > [7] LTE/GSM Auto [*]
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Thank you so much. It works! Spent weeks working with TMO support and their solution was to ask me to buy a new TMO phone.

By any chance, are you guys allowed to dial 911?

Yes

I'm also thinking of buying an AT&T Note 5 (they're easier to find than the T-mobile one).
Are you able to get Band 12?
What about Volte? I saw somewhere (I think it was some T-mobile support page but don't know if current) that without Volte you can't have Data and phone call at the same time.
Any advantage to the AT&T version over the T-mobile?
Thanks

ymmp said:
I'm also thinking of buying an AT&T Note 5 (they're easier to find than the T-mobile one).
Are you able to get Band 12?
What about Volte? I saw somewhere (I think it was some T-mobile support page but don't know if current) that without Volte you can't have Data and phone call at the same time.
Any advantage to the AT&T version over the T-mobile?
Thanks
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Click to collapse
Not really att bootloader makes it a hard one to deal with plus better to have att service cause it hell getting it to work on any other network jsyk
But I love mine got the 64gig gold and even with no network not letting it go
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