Develop Bugs

[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.

[Q] No lte on unlocked at&t e980 using tmobile

Hi, im kind of new to xda and had a few questions about tmobile lte working on unlocked at&t optimus g pro. I am in a tmobile lte area and have got it with every phone I have had so far( at&t unlocked gs3, at&t unlocked note 2, at&t unlocked htc one, and even at&t unlocked note 1) but I cant seem to get it to work on this phone. I put my sim in my wifes at&t unlocked gs3 and got lte . Any help would be greatly appreciated.Thanks in advance

bigred1090 said:
Hi, im kind of new to xda and had a few questions about tmobile lte working on unlocked at&t optimus g pro. I am in a tmobile lte area and have got it with every phone I have had so far( at&t unlocked gs3, at&t unlocked note 2, at&t unlocked htc one, and even at&t unlocked note 1) but I cant seem to get it to work on this phone. I put my sim in my wifes at&t unlocked gs3 and got lte . Any help would be greatly appreciated.Thanks in advance
Click to expand...
Click to collapse
Not sure. All i know is when I put my t-mobile sim in mine I only get edge no 3G as I do know the bands for HSPA are not there but not sure about LTE

I had my att g pro on tmobile and got lte, when i get home i will put the tmobile sim card in and get the apn i use. That's all i did last time (insert sim and put apn manually)
Sent from my LG-E980 using xda premium

hyelton said:
Not sure. All i know is when I put my t-mobile sim in mine I only get edge no 3G as I do know the bands for HSPA are not there but not sure about LTE
Click to expand...
Click to collapse
I only got edge at first too but I know I live in a refarmed 1900 MHz area so I went under settings to network operators and searched networks manually and chose tmobile rat:14 when it gave me my options. Now I get 4g umts- hspap. I use wifi while home and after I leave sometimes it will revert back to edge. I went into the hidden menu but I didn't see how to select band prefence anywhere so im lost on how to get lte to work.
I know at&t and tmobile use the same lte band I just cant figure out how to select it to make it work. Try selecting setting>networks>tethering and networks>mobile networks>network operators>search networks. A few different tmobile ones should pop up with rat:2 rat:3 and rat:14 underneath. When I selected rat:2 it only stayed on edge but all other options gave me 4g.Hope that helps to at least get you 4g working.

natienn said:
I had my att g pro on tmobile and got lte, when i get home i will put the tmobile sim card in and get the apn i use. That's all i did last time (insert sim and put apn manually)
Sent from my LG-E980 using xda premium
Click to expand...
Click to collapse
Ok that would be great if you can post the complete apn your using. I have the fast.t-mobile but maybe another part of mine is incorrect...

I am pretty sure for LTE to work on T mobile, you have to make sure the apn is set to fast.tmobile.com. Your Sim might be setting it to the default epc.tmobile.com, which will only give you HSPA+.
Sent from my LG-E980 using xda premium

Brooose said:
I am pretty sure for LTE to work on T mobile, you have to make sure the apn is set to fast.tmobile.com. Your Sim might be setting it to the default epc.tmobile.com, which will only give you HSPA+.
Sent from my LG-E980 using xda premium
Click to expand...
Click to collapse
Yeah. Make sure it's fast.t-mobile.com though. I'm doing the exact same. Unlocked g pro on T-Mobile lte. Where are you at? I'm at D.C.
Sent from my LG-E980 using xda app-developers app

Yoshio_221 said:
Yeah. Make sure it's fast.t-mobile.com though. I'm doing the exact same. Unlocked g pro on T-Mobile lte. Where are you at? I'm at D.C.
Sent from my LG-E980 using xda app-developers app
Click to expand...
Click to collapse
Im in orlando fl. I have the fast.t-mobile.com apn entered and have tried 3 different tmobile sim cards in the lg optimus g pro
And still no lte. I just tried my sim in my wifes at&t galaxy s3 again and it got lte instantly.
I also have tried updating my firmware to the value pack but it didnt help. Any suggestions are greatly appreciated.

bigred1090 said:
Im in orlando fl. I have the fast.t-mobile.com apn entered and have tried 3 different tmobile sim cards in the lg optimus g pro
And still no lte. I just tried my sim in my wifes at&t galaxy s3 again and it got lte instantly.
I also have tried updating my firmware to the value pack but it didnt help. Any suggestions are greatly appreciated.
Click to expand...
Click to collapse
A quick Google search found these APN settings for you.
http://forum.xda-developers.com/showthread.php?t=2236735

borgib said:
A quick Google search found these APN settings for you.
http://forum.xda-developers.com/showthread.php?t=2236735
Click to expand...
Click to collapse
I appreciate the help but for some reason it still wont get lte. I have tried all the different apns I can find and after I enter it if it still only goes to 4g then I reboot. Is there anyway to select lte only from any hidden menus or an app or something?

bigred1090 said:
I appreciate the help but for some reason it still wont get lte. I have tried all the different apns I can find and after I enter it if it still only goes to 4g then I reboot. Is there anyway to select lte only from any hidden menus or an app or something?
Click to expand...
Click to collapse
on other phones, the following menu lets you pick what you want your data to be: *#*#4636#*#*, then pick lte/gsm auto from there.

RussianBear said:
on other phones, the following menu lets you pick what you want your data to be: *#*#4636#*#*, then pick lte/gsm auto from there.
Click to expand...
Click to collapse
I tried but it doesn't have the option to change the network mode. I actually just edited my build.prop to enable network mode under settings and it worked!!! I finally got lte by choosing lte/wcdma option. When all the options appeared my lte appeared to be shut off .So all I had to do was turn it back on. Huge thanks to MrDSL for the help.

After changing my network mode to lte wcdma my phone kept saying roaming notification off at the top of the status bar and all I could use was data ( lte at least) and wouldn't make calls and the network mode menu actually disappeared. So after putting in a at&t sim card and rebooting my phone about 20 times the network mode menu popped back up and allowed me to change my preference to gsm/wcdma/lte and luckly its working perfect now.

I have a g pro on tmobile but for some reason theres a few places where I don't get 4g or lte and the phone loosses signal for a min or two then I get E is this happening to someone else ?

trezegol said:
I have a g pro on tmobile but for some reason theres a few places where I don't get 4g or lte and the phone loosses signal for a min or two then I get E is this happening to someone else ?
Click to expand...
Click to collapse
Yes. It happens to me on my way home. 2-3 times. Live 35 mins from my job I go from a city to rural area 2 times. Not refarmed as of yet I get the nasty red x

SIM Unlock LG G Pad 8.3 VK810 Verizon to AT&T

I have been searching and cant seem to find anything... :/
I am trying to SIM Unlock my LG G Pad 8.3 Model VK810 that is Verizon and should come factory unlock I believe. I need this to be used on AT&T LTE which I have a sim card for and a tablet plan on the shared data plan.
It is on 4.2.2 baseband is m9615a-cefwtazm
I tried adding some ATT APN settings I found, but that did not help me. I think I need to Change it to GSM From CDMA somehow? I am not really sure. I can update and root if needed or whatever I need to do. I also have a samsung z3x box, but dont think it will work on the LG.
Any help would really help me out! Thank you in advance.

jaredlappa said:
I have been searching and cant seem to find anything... :/
I am trying to SIM Unlock my LG G Pad 8.3 Model VK810 that is Verizon and should come factory unlock I believe. I need this to be used on AT&T LTE which I have a sim card for and a tablet plan on the shared data plan.
It is on 4.2.2 baseband is m9615a-cefwtazm
I tried adding some ATT APN settings I found, but that did not help me. I think I need to Change it to GSM From CDMA somehow? I am not really sure. I can update and root if needed or whatever I need to do. I also have a samsung z3x box, but dont think it will work on the LG.
Any help would really help me out! Thank you in advance.
Click to expand...
Click to collapse
As it seems you are comfortable messing with your APN settings that should be all you will need to do. The device is locked to specific wireless frequencies but luckily for you at &t uses the same LTE frequencies. You will need to have root access in order to write your APN settings though, check the forums for information on that. Finally make sure that the sim you have is compatible with your tablet data plan, and your APN settings should be as follows for mobile data only.
APN: BROADBAND
MCC: 310
MNC: 410

uprightbass360 said:
As it seems you are comfortable messing with your APN settings that should be all you will need to do. The device is locked to specific wireless frequencies but luckily for you at &t uses the same LTE frequencies. You will need to have root access in order to write your APN settings though, check the forums for information on that. Finally make sure that the sim you have is compatible with your tablet data plan, and your APN settings should be as follows for mobile data only.
APN: BROADBAND
MCC: 310
MNC: 410
Click to expand...
Click to collapse
Happen to have a link for a Root tutorial and ROM that is good and stable for my Vk810? Will the V500 work with my pad?
I was looking at this one: http://forum.xda-developers.com/showthread.php?t=2660676
Thank you.

jaredlappa said:
Happen to have a link for a Root tutorial and ROM that is good and stable for my Vk810? Will the V500 work with my pad?
I was looking at this one: http://forum.xda-developers.com/showthread.php?t=2660676
Thank you.
Click to expand...
Click to collapse
I do not, I am sure you will find something if you look around. The V500 and V510 methods are not compatible. There is a method for yours though along with a custom recovery in the works. You may even have a custom rom in the near future.
P.S. this topic belongs in Q/A and not development.

uprightbass360 said:
I do not, I am sure you will find something if you look around. The V500 and V510 methods are not compatible. There is a method for yours though along with a custom recovery in the works. You may even have a custom rom in the near future.
P.S. this topic belongs in Q/A and not development.
Click to expand...
Click to collapse
Why would it belong in Q/A? If I am having to root and unlock it or do custom recovery? Isn't that with development?
Sorry if I have posted in the wrong place.
Here is the link I found for Rooting: http://forum.xda-developers.com/showthread.php?t=2703825
From researching it looks like it will work with the VK810.
This was also newly released: http://forum.xda-developers.com/showthread.php?t=2726707
But there are no custom roms that I have found yet.
So, I should Root this and then change the APN settings to what you told me and my ATT SIM would work?
Thank you!

jaredlappa said:
Why would it belong in Q/A? If I am having to root and unlock it or do custom recovery? Isn't that with development?
Sorry if I have posted in the wrong place.
Here is the link I found for Rooting: http://forum.xda-developers.com/showthread.php?t=2703825
From researching it looks like it will work with the VK810.
This was also newly released: http://forum.xda-developers.com/showthread.php?t=2726707
But there are no custom roms that I have found yet.
So, I should Root this and then change the APN settings to what you told me and my ATT SIM would work?
Thank you!
Click to expand...
Click to collapse
I haven't read much about i0root but it looks like it will work. Now the next part is not certain weather or not it will work, but I have seen tablets able to run on other networks that are unlocked. As long as Verizon did not implement any extra protection you should be able to use an at&t sim that is enabled for tablet data.
Once you are rooted go pick up es file explorer and navigate to /system/etc/apns-conf.xml . Make sure that before you change anything that you make a copy and name it something else so you can find it again if you have to go back. Open the file using the text editor. You can get rid of the other apns and just put your new one in there and give it a reboot. It should kick right on after you reboot. Good luck!

uprightbass360 said:
I haven't read much about i0root but it looks like it will work. Now the next part is not certain weather or not it will work, but I have seen tablets able to run on other networks that are unlocked. As long as Verizon did not implement any extra protection you should be able to use an at&t sim that is enabled for tablet data.
Once you are rooted go pick up es file explorer and navigate to /system/etc/apns-conf.xml . Make sure that before you change anything that you make a copy and name it something else so you can find it again if you have to go back. Open the file using the text editor. You can get rid of the other apns and just put your new one in there and give it a reboot. It should kick right on after you reboot. Good luck!
Click to expand...
Click to collapse
I have an LG G PAD 8.3 VK810 Verizon that I am trying to root in order to SIM unlock from Verizon to ATT.
I have installed the Drivers packages here and it finds the drivers in USB Modes: Charge tablet and media sync fine, but when I go to Internet Connection mode and choose ethernet it can not find the following drivers: CDC ECM, CDC SERIAL, AND 3 THAT SAY LGE ANDROID PHONE.
Any ideas on how to get these drivers installed to try the next step? I tried to go ahead and run the iroot program but it can not find the device.
Thank you for the help.

I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app

That's awesome. I love what tmobile is doing to the phone industry. I love their aggressive stance now on grabbing customers.
Sent from my Nexus 5

jlczl said:
I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thx for the tip. The tablet is set to LTE mode and since T-Mobile LTE has the same band with Verizon LTE. It definitely works on T-Mobile.
For AT&T, no luck even if rooted. I used Radio Switcher app to go to the Tablet Info in Testing Mode. But it displays error message "This application does not work on this device".

ttn1185 said:
Thx for the tip. The tablet is set to LTE mode and since T-Mobile LTE has the same band with Verizon LTE. It definitely works on T-Mobile.
For AT&T, no luck even if rooted. I used Radio Switcher app to go to the Tablet Info in Testing Mode. But it displays error message "This application does not work on this device".
Click to expand...
Click to collapse
I rooted and popped in an AT&T sim card and it let's me put in the APN fine.
Sent from my HTC One_M8 using XDA Free mobile app

Skizzy034 said:
I rooted and popped in an AT&T sim card and it let's me put in the APN fine.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
But that is not my problem. The tablet doesn't pick up AT&T signal

ttn1185 said:
But that is not my problem. The tablet doesn't pick up AT&T signal
Click to expand...
Click to collapse
Easy...
Vk810 supports lte bands 4(aws) and 13 (700mhz block c), bands that Verizon uses
T-Mobile uses band 4 for lte mainly, will use band 2 (1900) and 12 (700 MHz block a) in the future as well. Vk810 will work on T-Mobile wherever tmobile has LTE right now (with band 4)
Att uses band 4, 2 (1900), 17(700mhz block b) and 30(2300mhz). Vk810 will only work on att if at uses band 4. If att only used band 2 in your area, your att phone (which supports band 2) will show LTE, but vk810 won't work
I don't know if there is a map showing which bands att uses in your area. There is a spectrum map showing who owns which band in which region, but no guarantee that att has active cell sites
http://specmap.sequence-omega.net

Tmobile sim on verizon g pad
jlczl said:
I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
How were you able to set up up the G Pad with the tmobile sim ? I went to the tmobile store and they were not able to get service running. What settings did you use ? Any help would be appreciated.

jlanderos93 said:
How were you able to set up up the G Pad with the tmobile sim ? I went to the tmobile store and they were not able to get service running. What settings did you use ? Any help would be appreciated.
Click to expand...
Click to collapse
you need to insert sim, reboot device (it'll prompt you to)
then you need to add the t-mobile APNs to the device
the settings below should work
http://forum.xda-developers.com/showthread.php?t=2240233

paperWastage said:
you need to insert sim, reboot device (it'll prompt you to)
then you need to add the t-mobile APNs to the device
the settings below should work
http://forum.xda-developers.com/showthread.php?t=2240233
Click to expand...
Click to collapse
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?

mrgj said:
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?
Click to expand...
Click to collapse
what region/location are you in?
believe that circle = battery indicator, not network indicator.... full circle = 100% battery, otherwise not 100% battery

mrgj said:
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?
Click to expand...
Click to collapse
I'm not sure if this works on at&t. Mine is working on T-Mobile. All I did was insert the T-Mobile SIM and APN settings for it to work.
Sent from my HTC6525LVW using XDA Premium 4 mobile app

jlczl said:
I'm not sure if this works on at&t. Mine is working on T-Mobile. All I did was insert the T-Mobile SIM and APN settings for it to work.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
as I said before...
this device is unlocked... it accepts any SIMs, and works w/ any band 4/13 network
AT&T's network accept any device that's approved for GSM/LTE spec, and compatible with their band 2/4/17/30 network.
AT&T doesn't have band 4 everywhere.. for example, no band 4 in nyc region.... this device won't work on at&t in nyc

paperWastage said:
as I said before...
this device is unlocked... it accepts any SIMs, and works w/ any band 4/13 network
AT&T's network accept any device that's approved for GSM/LTE spec, and compatible with their band 2/4/17/30 network.
AT&T doesn't have band 4 everywhere.. for example, no band 4 in nyc region.... this device won't work on at&t in nyc
Click to expand...
Click to collapse
LOL, I know it's unlocked. I'm using it on T-Mobile without a problem. And yes, I read your previous post. I was just answering what I personally know firsthand.
Sent from my HTC6525LVW using XDA Premium 4 mobile app

[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.
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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......

Enable bands

My friends has a g920p and wants to enable some bands so lte from telcel can work now he has only H+. Can that be done. I know that the s3 can with some magic. Thanks
Enviado desde mi SM-N920C mediante Tapatalk

Just put the phone on automatic in mobile network settings and set up two apns one for hspa and another for lte but make sure the lte apn has the bearer option set to lte the other just leave it how it is.

Didnt get it my friend.... here in mexico we use same apn for 3G or 4G LTE. We just need a sim v6.x and will get the lte bands.
Enviado desde mi SM-G920F mediante Tapatalk

george241312 said:
Just put the phone on automatic in mobile network settings and set up two apns one for hspa and another for lte but make sure the lte apn has the bearer option set to lte the other just leave it how it is.
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Can you explain this a little more im using sprint on tmobile and only getting h+ also

bighleo114312 said:
My friends has a g920p and wants to enable some bands so lte from telcel can work now he has only H+. Can that be done. I know that the s3 can with some magic. Thanks
Enviado desde mi SM-N920C mediante Tapatalk
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I know how to do this, but you would need to have the MSL number, if you don't then Google idoneapps, this guy sells an app that unlocks phone and extract that number.

So i need the msl number so how can i get it. Friends phone is already unlock.
Enviado desde mi SM-G920F mediante Tapatalk

MSL number is needed to edit data settings in sprint hidden menu. Install shortcut lite master and then search for PST, launch that application. Then look for ##Data#menu. You'll see there if your LTE is enabled or not. If it is not the only way to enable it is having MSL number.

Hidden Menu
there is no need for app for shortcut. Go to setting and go to Activate this device. Phone will load some info then look at top right for MORE. Click on it then click on PST. This will take to hidden menu,

To get LTE working all you have to do is create two separate APN's one with your regular APN settings and another that is identical APN settings but on the "Bearer" setting put it on LTE and you're good to go also make sure your phone is set to automatic and not gsm / umts
Sent from my SM-G920P using XDA Free mobile app

Also the phone will automatically switch to the apn that's needed. No need to keep switching apns
Sent from my SM-G920P using XDA Free mobile app

george241312 said:
Also the phone will automatically switch to the apn that's needed. No need to keep switching apns
Sent from my SM-G920P using XDA Free mobile app
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what you stated here is correct. but have you tried it yourself?
I did, but there issue with send text messages. incoming sms works, outgoing - no.
there is no need to set to automatic. in service menu there is point where you can set preferred network type LTE_GSM_UMTS., but again, sms does not work.

fixmewireless said:
what you stated here is correct. but have you tried it yourself?
I did, but there issue with send text messages. incoming sms works, outgoing - no.
there is no need to set to automatic. in service menu there is point where you can set preferred network type LTE_GSM_UMTS., but again, sms does not work.
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Works perfect for me I'm using T-Mobile it does not even switch to 3g when sending a msg idk why yours is not working I'm on oh1 stock no root maybe if you have root it can screw things up because different kernel?
Sent from my SM-G920P using XDA Free mobile app

george241312 said:
Works perfect for me I'm using T-Mobile it does not even switch to 3g when sending a msg idk why yours is not working I'm on oh1 stock no root maybe if you have root it can screw things up because different kernel?
Sent from my SM-G920P using XDA Free mobile app
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no root. i`m on stock oh1. i`m on metro pcs.

fixmewireless said:
no root. i`m on stock oh1. i`m on metro pcs.
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No clue maybe do ##72786# it will reset the phones modem settings and it will nag about activation again and relock the phone but I did it since I can unlock it myself again and never had an issue.
Weird thing is that my phone after unlock it wanted activation popup and then it actually went through and it went away with my T-Mobile sim.
Sent from my SM-G920P using XDA Free mobile app

sadfsadf
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.

Do you mean in service mode select cdma/lte then reboot and then go back to service mode n select gsm/wcdma/lte? Because ive been trying that fkr hkurs since reading your post lol. If this works your a beast . We need a gsm rom for this phone tho

george241312 said:
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.
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George, do you have a legit way to get lte working on our device ? I haven't seen any proof from anyone claiming lte working on att or tmobile.

george241312 said:
Ok found something out for some reason if you do not get LTE after setting it to Automatic switch to LTE/CDMA let it reboot and Reswitch it to Automatic reboot again then LTE+GSM_WCDMA should work.
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hmmm, been in the same boat with T-Mobile and a G920P, with only 3G being picked up but after switching it to automatic, it picked up LTE! Thanks for the poiter. However, have you been able to get MMS enabled or working as I seem to have issues with that and not sure why it isn't downloading the messages. Not sure if I need to give T-Mo a call and get something enabled or what. BTW, how did you manage to make that annoying activation screen go away as the moment I got it unlocked and popped in my sim card, it can't ever activate, but works fine though

any one succeeded in unlocking bands
Has anyone had any success enabling additional bands on a Sprint S6? Basically the bands it comes unlocked with are useless for Europe 4g and would love to unlock bands 3, 7, 20, 28, however 3 & 7 would be enough.

jeff83nz said:
Has anyone had any success enabling additional bands on a Sprint S6? Basically the bands it comes unlocked with are useless for Europe 4g and would love to unlock bands 3, 7, 20, 28, however 3 & 7 would be enough.
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Same here. seems to me Samsung does not give us open source to edit Exynos settings. As I'm aware, our phones' hardware is capable to get those bands