Develop Bugs

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

Kitkat update on net10 att issues no mms

I have an LG opitmus G pro e980 on net10 att sim card.
Since the kitkat update android version 4.4.2, I have lost all mms.
I have noticed that you cannot set the APN type, which is greyed out and set at default.
Is there anyway around this issue or would I have to root.
If I would have to root could someone show me where to find the root for my phone with the current update. Minding that I am not to tech savvy when it comes to phones, if it could be like a rooting for dumbies, that would be fantastic,
Thanks for any replies and or assistance.

iResident said:
I have an LG opitmus G pro e980 on net10 att sim card.
Since the kitkat update android version 4.4.2, I have lost all mms.
I have noticed that you cannot set the APN type, which is greyed out and set at default.
Is there anyway around this issue or would I have to root.
If I would have to root could someone show me where to find the root for my phone with the current update. Minding that I am not to tech savvy when it comes to phones, if it could be like a rooting for dumbies, that would be fantastic,
Thanks for any replies and or assistance.
Click to expand...
Click to collapse
I have Net10 ATT simcard as well. After upgrading to KK I did add new apn and it worked fine. Never had any mms or data problem
Don't try to edit existing apn instead add new one.

I'm on the same page but with straight talk from at&t, when I create new APN the apn type at the very bottom is greyed out. Please help xda community

iandher said:
I'm on the same page but with straight talk from at&t, when I create new APN the apn type at the very bottom is greyed out. Please help xda community
Click to expand...
Click to collapse
So you are saying you cannot add a new APN? I have TMobile and I didn't have any APN so I had to go to Menu and add APN and then save it.

New APN can be added
HD2FORNICK said:
So you are saying you cannot add a new APN? I have TMobile and I didn't have any APN so I had to go to Menu and add APN and then save it.
Click to expand...
Click to collapse
No, you can add a new APN. As I stated originally, everything else works well and fine as it always did. It is just the mms. From my research, this has happened to a lot of contract customers as well, but on the LG G2. I havent found anything on the GPro with contract people.
You are able to adjust all propterties in the network settings except APN Type, It is greyed out and you cannot change it. It currently says default.

I had the same issue after i updated to 4.2.2 on my phone. I am using Net10 with an at&t sim in it. I had to root and follow some instructions i had found on how to get the apn type frm being greyed out. As soon as i find it i will post a link.
heres the link i used and found, just follow the directions and it will work...
http://forum.xda-developers.com/showthread.php?t=2761126
Sent from my LG-E980 using XDA Free mobile app

Accessing service menu

I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?

bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
Verizon is cdma. Korea and most of the world is gsm. Like t mobile

xantanion said:
Verizon is cdma. Korea and most of the world is gsm. Like t mobile
Click to expand...
Click to collapse
I figured, but does anyone know how to access the hidden menu to view all the bands available?

5457#*500#
That should do however I can't access the main hidden menu to disable the throttling.

Thanks for the info 3rd degree.
I tried that on my H815 G4 but it didn't work (invalid code).
I also tried 5457#*815# but that didn't work either.
Unfortunately the 3845#*modelnumber# that always worked previously doesn't now. eg 3845#*815# just gives the invalid code error.
*Edit* the answer is in this thread:
http://forum.xda-developers.com/g4/help/how-to-enter-g4-hidden-menu-t3122373
the code that works for me is 277634#*#

bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it

Rehok said:
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it
Click to expand...
Click to collapse
For some reason, field test isn't an option on my Tmo variant. Any ideas? (i'm trying to see what LTE bands are enabled)

anyone knows the marshmallow code?

no internet on an sprint unlocked LG G5 LS992

I have an LG G5 LS992 from Sprint. I bought that phone in the USA. Now I need to use it in Spain. Sprint said they unlocked the phone. I am using Vodafone carrier. When I inserted the SIM card, Vodafone ES is recognized. I can do and receive calls, but I do not have internet. Any solution to that problem?

llachmar said:
I have an LG G5 LS992 from Sprint. I bought that phone in the USA. Now I need to use it in Spain. Sprint said they unlocked the phone. I am using Vodafone carrier. When I inserted the SIM card, Vodafone ES is recognized. I can do and receive calls, but I do not have internet. Any solution to that problem?
Click to expand...
Click to collapse
Use the hidden call menu apk to get into apn settings and set up apn? Have you done this yet?

TheMadScientist said:
Use the hidden call menu apk to get into apn settings and set up apn? Have you done this yet?
Click to expand...
Click to collapse
Hi, thanks.
Yes, I have done a new APN and is still not working.
I also tried the different options in the submenu System Selection. Also, I enabled all possible bands in the Hidden Menu.

Sprint G8 APN Greyed Out

I recently got this phone and things are working fine except I can't add my carriers APN to the phone for mobile data. The only option is greyed out and there is no button to add another. I'm not quite sure what to do.

Alvinu said:
I recently got this phone and things are working fine except I can't add my carriers APN to the phone for mobile data. The only option is greyed out and there is no button to add another. I'm not quite sure what to do.
Click to expand...
Click to collapse
With your sim in, dial ##3282# then go to apn settings , 3 buttons at the top right, and reset to default. Try a few times in areas with better connection if it doesn't work. It should work the first time though

antintin said:
With your sim in, dial ##3282# then go to apn settings , 3 buttons at the top right, and reset to default. Try a few times in areas with better connection if it doesn't work. It should work the first time though
Click to expand...
Click to collapse
I've done this but it does not seem to work. I'm using a local carrier from a not very large country so I don't think they have any auto APN settings on their network. When looking it up on their website the only option is to add the APN settings manually which looks to be impossible sadly.

Alvinu said:
I've done this but it does not seem to work. I'm using a local carrier from a not very large country so I don't think they have any auto APN settings on their network. When looking it up on their website the only option is to add the APN settings manually which looks to be impossible sadly.
Click to expand...
Click to collapse
Your only option is to contact Sprint and ask them for a service code. That is the code you need when you click edit on different settings in that menu. Another user had this problem and ended up returning the phone

Same thing for me too. Can anyone please come up with a solution for this. Had the same issue with the leaked firmware too and had to downgrade to Pie to get data back.

antintin said:
Your only option is to contact Sprint and ask them for a service code. That is the code you need when you click edit on different settings in that menu. Another user had this problem and ended up returning the phone
Click to expand...
Click to collapse
I might just end up returning it. I was wondering if root is ever achieved on this phone would there be a way to then freely access the settings?

Bought 5 of these unlocked LG G8 phones for families in Laos and the update basically broke them. Now I can't get help from LG or Sprint. WTF...never again with both of these two companies. What a waste of my time and money, Grrrr.

I have the same problem. Can't edit the APN in Setting to get it to work. But when I go to ##data# and go to APN Setting and try to edit it demands my Service Code which I randomly entered 000000 and it opened for edit !! But most things are un-editable so that did not work for me. I.e I can edit user name, password, authentication, APN NI and PDN Type but I can't edit the APN to change it to my carriers "#777". Any ideas?
P.S. My device is actually sprint locked, but I'm using an unlocking electronic chip to make it work on my carrier

Update
This was brought up on the Sprint forum and a representative states, "We are only responsible for unlocking the device, not getting the APNs to unlock. You can contact the carrier you are trying to activate the device on or contact LG" as shown here. There was another post on the LG forum where an LG representative says to contact Sprint or the other carrier because the problem can only be resolved by the carrier here.
So currently Sprint and LG are passing the blame onto each other. This is sad to hear because this is the only disappointment I have in my purchase so far. Maybe if more of us comment on the issue to both companies we can find out which one is really at fault and get them to issue a fix?

I have the unlocked Sprint variant of this phone on ATT and my APN settings are also locked. My APN settings got messed up after this last update and once during a factory default. I fixed the APN settings for ATT doing the below steps.
Do the ##data# code
Then go to APN
Then on the top right corner of the screen hit the three little dots
Then hit reset to defaults
Next restart the phone
After that mobile data and mms started working. Hope this helps.

Spartan F8 said:
I have the unlocked Sprint variant of this phone on ATT and my APN settings are also locked. My APN settings got messed up after this last update and once during a factory default. I fixed the APN settings for ATT doing the below steps.
Do the ##data# code
Then go to APN
Then on the top right corner of the screen hit the three little dots
Then hit reset to defaults
Next restart the phone
After that mobile data and mms started working. Hope this helps.
Click to expand...
Click to collapse
Well we already had this but some people don't get auto populated apns

Update..
I tried deleting all APNs from ##DATA# and now the 3G symbol appears briefly for a second and then disapears every couple of minutes.

fwz247 said:
Update..
I tried deleting all APNs from ##DATA# and now the 3G symbol appears briefly for a second and then disappears every couple of minutes.
Click to expand...
Click to collapse
check the sprint community forum, there is a moderator that can help you get your service code, once you have this, you can make changes to your apn (I don't think you can add a new APN though) The update screwed up this apn badly, sadly lg and sprint are just passing the blame around

acekid109 said:
check the sprint community forum, there is a moderator that can help you get your service code, once you have this, you can make changes to your apn (I don't think you can add a new APN though) The update screwed up this apn badly, sadly lg and sprint are just passing the blame around
Click to expand...
Click to collapse
I got in contact with him through pm. Sadly he said the method he previously suggested didn't work.

acekid109 said:
check the sprint community forum, there is a moderator that can help you get your service code, once you have this, you can make changes to your apn (I don't think you can add a new APN though) The update screwed up this apn badly, sadly lg and sprint are just passing the blame around
Click to expand...
Click to collapse
I don't think they would provide service code for locked phones!

fwz247 said:
I don't think they would provide service code for locked phones!
Click to expand...
Click to collapse
The phones are unlocked, even with service code, you can't add a new apn, you can only edit some parts of the existing ones.

So.. is there a chance in the near future or what?!

fwz247 said:
So.. is there a chance in the near future or what?!
Click to expand...
Click to collapse
Not really. But resetting to default should help in most cases

FIX
So I continued searching and there is an adb fix that forces the "Add APN" activity. Enable ADB debugging and then type
Code:
adb shell am start -a android.intent.action.INSERT content://telephony/carriers --ei simId -1
This was discovered by xda member deskjet390 here. I used an app that a member named miji2 on another forum created that does this on device here. I also think I should link the website that I found all this information on as they're the reason for all of this so here.

Alvinu said:
So I continued searching and there is an adb fix that forces the "Add APN" activity. Enable ADB debugging and then type This was discovered by xda member deskjet390 here. I used an app that a member named miji2 on another forum created that does this on device here. I also think I should link the website that I found all this information on as they're the reason for all of this so here.
Click to expand...
Click to collapse
It's still greyed out