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.

[MOD](WIP) Add 3g/ipv4 support + more (update.zip)

I don't have much time so Ill revisit this later and give it more details
What this update zip does
add apns
allow edit of default apn
allow edit of tether apn
add 3G
add ipv4 option (and actually work)
proper icons (E, 3G, H and 4G)
all network modes visible (probably not needed but added anyway)
TETHER BROKE FOR NOW
MAKE SURE YOU HAVE A NANDROID BEFORE YOU FLASH (works for me might not for you)
THIS REPLACES THE BUILD.PROP SO ANY PREVIOUS BUILD PROP MODIFICATIONS WILL BE LOST USE WITH CAUTION
If you want to use this with your modified build prop check back in a few days or take a look at the build prop inside the zip.
Reboot into twrp
Install apn_mod.zip
Wipe cache/dalvik (do not skip this)
Reboot system
Tell me if you get stuck in 3g I think I fixed that bug but not 100% sure (temp fix: open network mode and select GSM/WCDMA/LTE)
DOWNLOAD HERE

ThePagel said:
I don't have much time so Ill revisit this later and give it more details
What this update zip does
add apns
allow edit of default apn
allow edit of tether apn
add 3G
add ipv4
proper icons (E, 3G, H and 4G)
all network modes visible (probably not needed but added anyway)
MAKE SURE YOU HAVE A NANDROID BEFORE YOU FLASH (works for me might not for you)
THIS REPLACES THE BUILD.PROP SO ANY PREVIOUS BUILD PROP MODIFICATIONS WILL BE LOST USE WITH CAUTION
If you want to use this with your modified build prop check back in a few days or take a look at the build prop inside the zip.
Reboot into twrp
Install apn_mod.zip
Wipe cache/dalvik (do not skip this)
Reboot system
Tell me if you get stuck in 3g I think I fixed that bug but not 100% sure (temp fix: open network mode and select GSM/WCDMA/LTE)
DOWNLOAD HERE
Click to expand...
Click to collapse
What is the benefit of this mod?

jimmydigital00 said:
What is the benefit of this mod?
Click to expand...
Click to collapse
Honestly if you need to ask you probably wont benefit from it. But you can change the default tether apn to fast instead of pcweb + 3g + mega apn pack. I need ipv4 for my vpn to work properly and not leak my ip but there are lots of reasons to use ipv4 instead of ipv6.

This is awesome. could you possibly add lte/wcdma to the network modes? I can get the option in the hidden menu through the dialer, would love an option for it in the network mode menu.
Sent from my LG-D851 using XDA Free mobile app

Harmtan2 said:
This is awesome. could you possibly add lte/wcdma to the network modes? I can get the option in the hidden menu through the dialer, would love an option for it in the network mode menu.
Sent from my LG-D851 using XDA Free mobile app
Click to expand...
Click to collapse
Ill look into it

jimmydigital00 said:
What is the benefit of this mod?
Click to expand...
Click to collapse
When Roaming IPV6 doesn't work that well. I had to create another APN so I could connect to the roaming network. Even that was a little finicky. This will come in handy when going to Wyoming to visit the Family.
ThePagel said:
Ill look into it
Click to expand...
Click to collapse
Thanks! definitely buy you a beer for it.

Does this have any effect if we're using att?
Sent from my LG-D851 using Tapatalk

Skizzy034 said:
Does this have any effect if we're using att?
Sent from my LG-D851 using Tapatalk
Click to expand...
Click to collapse
Probably not unless you are only seeing 2g and 4g lte if that is so you will see e/3g/lte after flashing this. but you can just go in the build prop and edit that in. I will try to update the op tonight with details but probably wont get to it until tomorrow. I guess if you already see e/3g/4g you will get a lot of apns from around the world with this package.
*Edit*
can you get ipv4 apn to work properly with this phone on att? I dont mean ipv4/ipv6 but the real ipv4? if not that would be another benefit for you if you care for ipv4.

It shows ipv4 in the APN, but I never see 3g, just LTE, 4g, and a couple times 2g.
Sent from my LG-D851 using Tapatalk

Skizzy034 said:
It shows ipv4 in the APN, but I never see 3g, just LTE, 4g, and a couple times 2g.
Sent from my LG-D851 using Tapatalk
Click to expand...
Click to collapse
yeah then you would only be getting apns from this. If you are interested in that I'm going to make a apn only package tomorrow for the zone people.
*Edit*
sorry didn't see you don't get 3G if this phone supports that band (I think it does) you should get 3g from this.
*edit
but that's just a simple build prob edit Ill have that in the op tomorrow

So this actually changes the tethering APN for the stock tethering app?
Does it also replace framework-res then?
Sent from my Nexus 7 using XDA Premium HD app

sdjkfjjlljk

This should help out with VPN and torrents. Checking it out now!

Does this removes the 5GB cap of tether use on T-Mobile ?
Thanks

VPN works now, that's awesome. Still not able to download torrents though, oh well. Nice work!

Hay boss do you have to make the changes to the build.prop for this to work? Reason is it cause poor signal and 4G to drop in and out. At least it does on my device. Had the same problem with those edits on the G2.

UltimateEnd said:
Does this removes the 5GB cap of tether use on T-Mobile ?
Thanks
Click to expand...
Click to collapse
If you can get your tethering to work with the fast.t-mobile.com APN, data will not be counted as tethered data.
behappy said:
VPN works now, that's awesome. Still not able to download torrents though, oh well. Nice work!
Click to expand...
Click to collapse
I never tried VPN before, what was broken about it?

havanahjoe said:
If you can get your tethering to work with the fast.t-mobile.com APN, data will not be counted as tethered data.
Click to expand...
Click to collapse
I'm not sure that works. That's the default setting.

havanahjoe said:
I never tried VPN before, what was broken about it?
Click to expand...
Click to collapse
I use PIA and it isn't compatible with ipv6, only ipv4.

ThePagel;54618716
Tell me if you get stuck in 3g I think I fixed that bug but not 100% sure (temp fix: open network mode and select GSM/WCDMA/LTE)
[/QUOTE said:
No 3G bug since I flashed this last night.
Last night I noticed my tether is broken, but I didn't know why. My computer will not connect to the hotspot and will complain that the signal is low.
I did some debugging and found this:
I/hostapd ( 3179): wlan0: AP-STA-MAX-REACHED
The phone is not allowing the client to connect because it thinks the max has been reached. It's not a build.prop thing, I couldn't find it there.
Doing some more digging, I found that the hostapd.conf file that is generated when the hotspot is on (/data/misc/wifi/hostapd.conf) has max_num_sta=0 even though I have set it to 8 on the Settings Menu. I have changed the settings to something else and this always comes up as 0.
I also see some errors about some config files not being setup properly:
Code:
E/hostapd (31402): Configuration file: /data/misc/wifi/hostapd.conf
E/hostapd (31402): Invalid MAC address '/data/misc/wifi/hostapd.accept' at line 1 in '/data/misc/wifi/hostapd.accept'
E/hostapd (31402): Line 15: Failed to hostapd_config_read_maclist '/data/misc/wifi/hostapd.accept' at config_file.c
Not sure where this config_file.c is, probably in the code of the hostapd binary.
I don't think I had seen hostapd being used in the stock tethering, but I wasn't really looking for it when debugging previously.
---------- Post added at 05:58 PM ---------- Previous post was at 05:57 PM ----------
UltimateEnd said:
I'm not sure that works. That's the default setting.
Click to expand...
Click to collapse
The stock firmware has a hidden tethering APN, which is pcweb.tmobile.com. Using this zip allows you to change the tethering APN. If that one is configured as fast, then you should be good to go. Is your tethering working with this patch? Mine isn't
---------- Post added at 05:59 PM ---------- Previous post was at 05:58 PM ----------
behappy said:
I use PIA and it isn't compatible with ipv6, only ipv4.
Click to expand...
Click to collapse
Oh that's right. I forgot you had that issue. So did you set your phone's APN to IPV4 only to make it work?
Click to expand...
Click to collapse

Fast dormancy on tmobile

Appearently tmo US does support it but its set to unknown....
Should i enable or disable?

Idk. My G4 sleeps like a boss and battery life has been very good so far. Are you having issues?

Enable.. I told you this already!

Where is this setting on the g4?

gsxcorey said:
Where is this setting on the g4?
Click to expand...
Click to collapse
Hidden menu that you access via the dialer.

how do you access it then? LOL any help?

gsxcorey said:
how do you access it then? LOL any help?
Click to expand...
Click to collapse
Try 277634#*# <-- enter this from dialer
I only know that TMO US supports FD. Most US carriers support this, but I haven't done a whole lot of research on other carriers other than TMO US.

you rock. i'm on tmobile and just enabled it. from the little research I did it seems like it's surely a good idea to enable it correct it? really no downside?
---------- Post added at 01:23 AM ---------- Previous post was at 01:19 AM ----------
my only question is i've read if you have it on and your area/network don't support it you can loose more battery life? Does all of tmobile have it in the US or does it go by area and if so how do i check?
BTW Thanks again!

gsxcorey said:
you rock. i'm on tmobile and just enabled it. from the little research I did it seems like it's surely a good idea to enable it correct it? really no downside?
---------- Post added at 01:23 AM ---------- Previous post was at 01:19 AM ----------
my only question is i've read if you have it on and your area/network don't support it you can loose more battery life? Does all of tmobile have it in the US or does it go by area and if so how do i check?
BTW Thanks again!
Click to expand...
Click to collapse
There is no downside as long as your carrier supports it, yeah. FD basically switches your LTE connection to 3G if you're not using the internet. This way it doesn't drain your battery as quickly. The reason why you lose battery if your carrier does NOT support it, is because then your phone ping the network more than it should. All of TMO US LTE areas have this because it's built into the network.

Just curious why T-Mobile doesnt enable this by default on their phones if it is so useful?

I keep getting this error when I type the code in, any help?
Sent from my LG-H811 using XDA Free mobile app

dipole said:
Just curious why T-Mobile doesnt enable this by default on their phones if it is so useful?
Click to expand...
Click to collapse
Oversight.
Sent from my LG-H811 using Tapatalk

csdj92 said:
I keep getting this error when I type the code in, any help?
Sent from my LG-H811 using XDA Free mobile app
Click to expand...
Click to collapse
I got the same on my AT&T variant. BTW, does anyone know if I should turn FD on or off for AT&T/Cricket? Thanks.

Sfkn2 said:
Try 277634#*# <-- enter this from dialer
I only know that TMO US supports FD. Most US carriers support this, but I haven't done a whole lot of research on other carriers other than TMO US.
Click to expand...
Click to collapse
Thanks for this info, I'm trying it out now!

Sfkn2 said:
Try 277634#*# <-- enter this from dialer
I only know that TMO US supports FD. Most US carriers support this, but I haven't done a whole lot of research on other carriers other than TMO US.
Click to expand...
Click to collapse
Thanks, I enabled this yesterday . Question if this uses 3G for phone calls does it affect HD calls or HD calls are also on 3G connections?

I just went through the hidden menu on the H815 model - couldn't find any setting akin to fast dormancy. I can assume then that this is strictly for the T-Mobile variant?

AhsanU said:
I just went through the hidden menu on the H815 model - couldn't find any setting akin to fast dormancy. I can assume then that this is strictly for the T-Mobile variant?
Click to expand...
Click to collapse
Check the field test settings. Should be in there.
---------- Post added at 08:24 PM ---------- Previous post was at 08:24 PM ----------
pvaldeben said:
Thanks, I enabled this yesterday . Question if this uses 3G for phone calls does it affect HD calls or HD calls are also on 3G connections?
Click to expand...
Click to collapse
No affect on your HD calls.

Sfkn2 said:
Check the field test settings. Should be in there.
---------- Post added at 08:24 PM ---------- Previous post was at 08:24 PM ----------
No affect on your HD calls.
Click to expand...
Click to collapse
Under field test, I see:
Modem Settings
LTE Data Test
Browser/Data
WiFi Test
Enhanced Flex Mode
GPS Test
SMS Test
IMS Setting
SmartDM Enable/Disable
DM/FOTA Test
LGODM Logging (LGODL)
QCRIL LOG ADB ON
Fake Language
WVDRM Keybox
Call Test
GPRI
ECC
I don't see fast dormancy after clicking on every single one of those either.
Edit: Found it! Jeez. It's under PDP Settings, derp. I should probably head to bed, thanks lmao

Just enabled this. Thanks for the tip guys!

Sfkn2 said:
There is no downside as long as your carrier supports it, yeah. FD basically switches your LTE connection to 3G if you're not using the internet. This way it doesn't drain your battery as quickly. The reason why you lose battery if your carrier does NOT support it, is because then your phone ping the network more than it should. All of TMO US LTE areas have this because it's built into the network.
Click to expand...
Click to collapse
FD doesnt touch LTE

Data connection switch 2G/3G/4G missing

Hello guys.
I need another tip as I am not running AT&T network in Europe I wanted to ask you if you are able to switch manually between network types 2G/3G/4G. The phone connects me to 4G regardless to how bad the reception is, and in that areas I want to be able to swotch from 4G to 3G.
Does any of you have a solution for this item?
Your responses will be appreciated.

catalindobre said:
Hello guys.
I need another tip as I am not running AT&T network in Europe I wanted to ask you if you are able to switch manually between network types 2G/3G/4G. The phone connects me to 4G regardless to how bad the reception is, and in that areas I want to be able to swotch from 4G to 3G.
Does any of you have a solution for this item?
Your responses will be appreciated.
Click to expand...
Click to collapse
As far as I've ever known, the only way to really impact that without root would be to change APN settings. I can't really provide specifics on this device, but there definitely isn't a quick and easy way to toggle between them.

disturbd1 said:
As far as I've ever known, the only way to really impact that without root would be to change APN settings. I can't really provide specifics on this device, but there definitely isn't a quick and easy way to toggle between them.
Click to expand...
Click to collapse
catalindobre said:
Hello guys.
I need another tip as I am not running AT&T network in Europe I wanted to ask you if you are able to switch manually between network types 2G/3G/4G. The phone connects me to 4G regardless to how bad the reception is, and in that areas I want to be able to swotch from 4G to 3G.
Does any of you have a solution for this item?
Your responses will be appreciated.
Click to expand...
Click to collapse
Actually all you haveto do is go to your dialer pad and punch in the dialer pad this sequence tight here exactly as shown....*#*#4636#*#* and go to phone info and scroll down and you will see the network mode selection...I m going to post a screenshot for you

raver445 said:
Actually all you haveto do is go to your dialer pad and punch in the dialer pad this sequence tight here exactly as shown....*#*#4636#*#* and go to phone info and scroll down and you will see the network mode selection...I m going to post a screenshot for you
Click to expand...
Click to collapse
I 've found myself this solution after google it. Thank you! I wonder if there is a solution for a toggle in the notification bar.

catalindobre said:
I 've found myself this solution after google it. Thank you! I wonder if there is a solution for a toggle in the notification bar.
Click to expand...
Click to collapse
There isn't any other solution and there is no root available for this thing it's very lockdown so unless someone comes up with something you will just have to do the method I showed you
Sent from my SAMSUNG-SM-G891A using Tapatalk

raver445 said:
There isn't any other solution and there is no root available for this thing it's very lockdown so unless someone comes up with something you will just have to do the method I showed you
Sent from my SAMSUNG-SM-G891A using Tapatalk
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Click to collapse
At least we still have this solution.

catalindobre said:
At least we still have this solution.
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Click to collapse
Yes because the att version has to be rooted and the bootloader unlocked for any modifications to take place
Sent from my SAMSUNG-SM-G891A using Tapatalk

Should we dream to that moment?

catalindobre said:
Should we dream to that moment?
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Click to collapse
For right now yes because I've checked every possible venue no root is possible at this time
Sent from my iPhone using Tapatalk

Thanks a lot!!!
raver445 said:
Actually all you haveto do is go to your dialer pad and punch in the dialer pad this sequence tight here exactly as shown....*#*#4636#*#* and go to phone info and scroll down and you will see the network mode selection...I m going to post a screenshot for you
Click to expand...
Click to collapse
You saved me from selling my beloved S7 Active! After searching (camo green, unlocked) from about 2 months, I bought it a week ago. I'm using "MINT SIM". So on default network settings, I'm fine outdoor, but indoor situation is horrible, it keeps me in LTE (barely 1 bar). So calls were getting disconnected. I don't care about data in my house, as I'm on WIFI all the time. Now, from your provided code, I selected 'Global Auto' and I'm getting ALL bars of network! It is connecting me to UMTS automatically! Data speed good enough for me! I don't have to sell it anymore! Thanks a lot!!

catalindobre said:
Hello guys.
I need another tip as I am not running AT&T network in Europe I wanted to ask you if you are able to switch manually between network types 2G/3G/4G. The phone connects me to 4G regardless to how bad the reception is, and in that areas I want to be able to swotch from 4G to 3G.
Does any of you have a solution for this item?
Your responses will be appreciated.
Click to expand...
Click to collapse
QuickShortcutMaker > Hidden Network Setting > All GSM

mddj said:
QuickShortcutMaker > Hidden Network Setting > All GSM
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Click to collapse
A very fast response I've sold the phone only 4 years ago ).

)))
I solved this problem for the customer today. Found this forum. Replied. May be useful for the next generation %)

catalindobre said:
A very fast response I've sold the phone only 4 years ago ).
Click to expand...
Click to collapse
)))

No mobile data on LTE

Hi,
I have a problem with my LG G3. I can't connect to mobile data, while network is connected to LTE. On LOS 14.1 everything is working fine. But on any stock ROM (v21a, v21c, v30b, v30d, v30n) phone is connected to LTE, but mobile data doesn't work. On CDMA only I have mobile data through 3G+ or H+. Reflashing through LG UP or flashtool doesn't help. Any suggestions? On custom ROMs LTE is working flawlessly, so it is clearly software issue.

Also enabling or disabling fast dormancy didn't help.

I found that the Access Point Name (APN) defined for my carrier on the phone didnt work. I had to manually define it - after which mobile data worked.

The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.

I have the same problem. I want to fix it without root.

Cienky02 said:
I have the same problem. I want to fix it without root.
Click to expand...
Click to collapse
All LG phones come with a hidden menu. To enable lte bands there. If it still doesn't work, try resetting network settings.

I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?

farhanshaikh671 said:
The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.
Click to expand...
Click to collapse
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?

Magnum44pl said:
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?
Click to expand...
Click to collapse
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
Cienky02 said:
I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?
Click to expand...
Click to collapse
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.

farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I know how to acces hidden menu. Which option in it I have to change?

farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I tells me that i need to root. I dont want to do that, any way to do it without?

On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?

Magnum44pl said:
I know how to acces hidden menu. Which option in it I have to change?
Click to expand...
Click to collapse
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
Magnum44pl said:
On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?
Click to expand...
Click to collapse
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.

farhanshaikh671 said:
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.
Click to expand...
Click to collapse
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.

Magnum44pl said:
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.
Click to expand...
Click to collapse
First try claiming a replacement for your sim card. If it still doesn't work, ask for a replacement for ur phone itself.

With new SIM card the problem still exists.