Develop Bugs

[Q] Canadian LTE Model (AT&T too)

I use Fido in the GTA and would like to get a Note II. There are multiple models as per this list posted here:
Samsung SGH-i317 Galaxy Note II LTE
GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)
Samsung GT-N7105 Galaxy Note II LTE
GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)
Samsung SCH-R950 Galaxy Note II LTE
CDMA800 (BC0), CDMA1900 (BC14), CDMA1700/2100 (BC15)
Samsung SCH-i605 Galaxy Note II LTE
Dual:Cellular-Network_Operation: Parallel operation
Secondary+Cellular+Networks: CDMA800 (BC0), CDMA1900 (BC14), LTE700 (B13)
Secondary+Cellular_Data+Links: cdmaOne, CDMA2000 1xRTT, CDMA2000 1xEV-DO Rel. 0, CDMA2000 1xEV-DO Rev A, LTE
Samsung SPH-L900 Galaxy Note II LTE
GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)
Samsung SHV-E250S Galaxy Note II LTE
GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)
Samsung Galaxy Note II SC-02E
GSM850, GSM900, GSM1800, GSM1900, UMTS800 (B6), UMTS850 (B5), UMTS2100 (B1)
Samsung SCH-N719 Galaxy Note 2 CDMA
CDMA800 (BC0), CDMA1900 (BC14)
Click to expand...
Click to collapse
SGH-i317 looks to be the right one as samsung.ca explicitly lists the Note II model as the SGH-I317M.
One thing I haven't been able to confirm is whether the GT-N7105 is compatible with Rogers/Fido/AT&T's LTE implementation. The specs between the two look to be identical.
Are there any Canadians using LTE with a GT-N7105? Any Americans using it with AT&T LTE?

fogducker said:
I use Fido in the GTA and would like to get a Note II. There are multiple models as per this list posted here:
SGH-i317 looks to be the right one as samsung.ca explicitly lists the Note II model as the SGH-I317M.
One thing I haven't been able to confirm is whether the GT-N7105 is compatible with Rogers/Fido/AT&T's LTE implementation. The specs between the two look to be identical.
Are there any Canadians using LTE with a GT-N7105? Any Americans using it with AT&T LTE?
Click to expand...
Click to collapse
I believe the SGH-i317 is the AT&T-US model which isn't available yet. There are apparently some European models that support LTE but on bands different that here in the Americas. (The way I understand it.)

the telus, rogers, and bell note 2 model is SGH-i317M. The AT&T is the SGH-i317. In the past the Canadian versions of samsung phones with the M and the end is exactly the same as the model without the M. I guess they just throw an M in there is signify that its the Canadian version.
I dont know this for sure but I can see why they would suddenly change the way they number these phones. So I'm thinking roms/mods/tools etc for the AT&T SGH-i317M will work just fine for the Canadian SGH-i317M

M is for Bell
R for Rogers
D for Telus,
Canadian carriers
Sent from my SGH-I717R Samsung Galaxy Note LTE using xda app-developers app

fogducker said:
I use Fido in the GTA and would like to get a Note II. There are multiple models as per this list posted here:
SGH-i317 looks to be the right one as samsung.ca explicitly lists the Note II model as the SGH-I317M.
One thing I haven't been able to confirm is whether the GT-N7105 is compatible with Rogers/Fido/AT&T's LTE implementation. The specs between the two look to be identical.
Are there any Canadians using LTE with a GT-N7105? Any Americans using it with AT&T LTE?
Click to expand...
Click to collapse
I don't think that is the right information posted regarding N7105. N7105 is LTE version of N7100 that was launched in Asia which uses different LTE bands tha NA. From what I gather online, N7105 uses "LTE2600 (B7), LTE800 (B20)" which is incompatible with North American providers.
http://pdadb.net/index.php?m=specs&id=3807&view=1&c=samsung_gt-n7105_galaxy_note_ii_lte_32gb

WRONG!
gotshoaib said:
M is for Bell
R for Rogers
D for Telus,
Canadian carriers
Sent from my SGH-I717R Samsung Galaxy Note LTE using xda app-developers app
Click to expand...
Click to collapse
This is wrong! I'm with Rogers, always have been, and most of my Samsung devices have an "M" after the standard model number. While it's true that they've used "R", most devices now have the letter "M".
Peter
Addendum: The letter "M" after the standard model number simply signifies the Canadian variant of the AT&T unit.

PeterGuru said:
This is wrong! I'm with Rogers, always have been, and most of my Samsung devices have an "M" after the standard model number. While it's true that they've used "R", most devices now have the letter "M".
Peter
Addendum: The letter "M" after the standard model number simply signifies the Canadian variant of the AT&T unit.
Click to expand...
Click to collapse
Here's the deal. The reason there is the M after the Canadian version is that the Canadian version is indeed different. They will most likely have the same 3G and LTE radios so they should work on similar US and Canadian networks. The major difference between the two will be that the bastards at AT&T don't like FM radios in their devices. I don't know why AT&T does this. They just like to screw their customers.

Any idea which version will be ending with with Wind Mobile and the other AWS carriers?

[Q] Can I use a Korean note 2 in the US?

I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.

JelliK said:
I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.
Click to expand...
Click to collapse
Try to root it n install you custom software,Do your homework around the forms n find the stuff you need n support the developers? You won't regret it! !
Sent from my SAMSUNG-SGH-I317 using xda premium

Dnice25 said:
Try to root it n install you custom software,Do your homework around the forms n find the stuff you need n support the developers? You won't regret it! !
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
I don't want to root it and I prefer to keep it stock. I just need to know if the phone will work with At&t's 3g network. It would also be nice if i could fine a way to check my voicemail.

JelliK said:
I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.
Click to expand...
Click to collapse
Frequencies used on the AT&T Network (USA)
Frequency Protocol Class
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
1700/2100 MHz(AWS) LTE 4G
T-Mobile (USA)
850 MHz/1900 MHz GSM/GPRS/EDGE/UMTS/HSPA
1900 MHz GSM/GPRS/EDGE 2G (EDGE)
1700 MHz UMTS/HSPA/HSPA+ 3G/4G
1900 MHz UMTS/HSPA/HSPA+ 3G/4G
1700 MHz LTE 4G
If that's the international version Note II check and see what frequency's it supports,and compare to AT&T or T-Mobile's. International devices are not carrier locked
If it's a branded phone meaning you got it from your cellar carrier, It could be locked to that provider only.
If your using the unlocked phone, look up the specs on your device and see what it supports, if it matches up to the above frequencies you should be good

budco2000 said:
Frequencies used on the AT&T Network (USA)
Frequency Protocol Class
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
1700/2100 MHz(AWS) LTE 4G
T-Mobile (USA)
850 MHz/1900 MHz GSM/GPRS/EDGE/UMTS/HSPA
1900 MHz GSM/GPRS/EDGE 2G (EDGE)
1700 MHz UMTS/HSPA/HSPA+ 3G/4G
1900 MHz UMTS/HSPA/HSPA+ 3G/4G
1700 MHz LTE 4G
If that's the international version Note II check and see what frequency's it supports,and compare to AT&T or T-Mobile's. International devices are not carrier locked
If it's a branded phone meaning you got it from your cellar carrier, It could be locked to that provider only.
If your using the unlocked phone, look up the specs on your device and see what it supports, if it matches up to the above frequencies you should be good
Click to expand...
Click to collapse
Ok so I got these specs for my svh-250k and looks like 3g will be compatible but it also picks up umts 2100 and att LTE frequency uses 2100 for 4g. Am I wrong? Do I need to look at the secondary cellular network?
SVH-250K
Cellular;Networks: GSM850, GSM900, GSM1800, GSM1900, UMTS1900 (B2), UMTS2100 (B1)
Secondary_Cellular_Networks: LTE850 (B5), LTE1800 (B3)
Should I sell my korean note 2 and purchase one in the states? I really would hate to get rid of my brand new amberbrown 32 gig phone and downgrade to a boring white or pebble blue 16gig phone. Decisions decisions.....

I'm in the same situation did you already go back to the states and try it out?

JelliK said:
I'm in the same situation did you already go back to the states and try it out?
Click to expand...
Click to collapse
This thread is nearly 5 months old, and the OP only posted 4 times in this thread....total...
You will likely not get an answer from the OP...
Do a general search for info on the Korean note threads...as we have 4 or 5 that may help you in getting your answer....
Good luck to you....g

JelliK said:
I'm in the same situation did you already go back to the states and try it out?
Click to expand...
Click to collapse
Just reading the specs I would go with T-Mobile, Faster HSPA speeds if you decide to keep your amber brown. Only downside is T mobile's coverage isnt as good as AT&T but if you re in a major city it shouldnt be a problem.
Good luck!

[Solved][Q] LT28at Flashed with baseband LT28i now LTE not working

Hi Everyone,
I been searching the forums but unable to find an answer to this question. I have a LT28at (AT&T Xperia ion) and i flashed it with the baseband of LT28i (from .69 package). Now the phone will not pick up t-mobile LTE bands. I was wondering if there is anyway i could manupulate it to pick up LTE whenever it detects it and still have AWS bands for HSPA+? I am in the SF Bay Area where t-mobile has LTE.
Thanks for the help in advance.
:laugh:
Use *#*#4636#*#* -> phone information
Change "WCDMA preferred" to "LTE(preferred/WCDMA/GSM"
If you are not getting LTE

I would check to make sure the APN info is there first. From what I understand this device does not work well on Tmo as it does not support the 1700 band. But if your in a spot that Tmo is using the shared 1900 band it should work. I have never tried so cant be much more help than that.

My apn is correct... It is set to fast.t-mobile.com. So I know it's not the apn settings.

have you tried to flash all the complete firmware?

Hmmm nevermind. :silly:

archie87 said:
Quick question; Were you getting LTE before you flashed the firmware?
Also, your phone says H at the top right? Not 4G? Lol.
The LT28at doesn't support AWS uplink HSPA+ btw.
Click to expand...
Click to collapse
I am getting LTE now I fixed it in the settings LT28at does support LTE AWS and been using LTE on AWS for T-Mobile.
So my screen with *#*#7378423#*#* -> configuration shows the following:
"Working band/s:"
GSM 850, GSM900, GSM1800, GSM1900, UMTS_BC1 (2100), UMTS_BC2 (1900), UMTS_BC4 (1700), UMTS_BC5(850), LTE_BC4 (AWS which T-Mobile uses), LTE_BC17 (700 AT&T)
Also Once the Flashed LT28i baseband the default was set to WCDMA preferred that is why I could not get LTE. But I fixed it with *#*#4636#*#* and set it to LTE (preferred)/WCDMA/GSM

DEEE38 said:
I am getting LTE now I fixed it in the settings LT28at does support LTE AWS and been using LTE on AWS for T-Mobile.
So my screen with *#*#7378423#*#* -> configuration shows the following:
"Working band/s:"
GSM 850, GSM900, GSM1800, GSM1900, UMTS_BC1 (2100), UMTS_BC2 (1900), UMTS_BC4 (1700), UMTS_BC5(850), LTE_BC4 (AWS which T-Mobile uses), LTE_BC17 (700 AT&T)
Also Once the Flashed LT28i baseband the default was set to WCDMA preferred that is why I could not get LTE. But I fixed it with *#*#4636#*#* and set it to LTE (preferred)/WCDMA/GSM
Click to expand...
Click to collapse
Hello @DEEE38,
Please Mark The Thread As [SOLVED].
So others members can benefit from it.
Thank You.
Regards,
Dwarkesh Soren

DEEE38 said:
I am getting LTE now I fixed it in the settings LT28at does support LTE AWS and been using LTE on AWS for T-Mobile.
So my screen with *#*#7378423#*#* -> configuration shows the following:
"Working band/s:"
GSM 850, GSM900, GSM1800, GSM1900, UMTS_BC1 (2100), UMTS_BC2 (1900), UMTS_BC4 (1700), UMTS_BC5(850), LTE_BC4 (AWS which T-Mobile uses), LTE_BC17 (700 AT&T)
Also Once the Flashed LT28i baseband the default was set to WCDMA preferred that is why I could not get LTE. But I fixed it with *#*#4636#*#* and set it to LTE (preferred)/WCDMA/GSM
Click to expand...
Click to collapse
I said uplink AWS HSPA+ not LTE.
Thanks for posting the resolution.

archie87 said:
I said uplink AWS HSPA+ not LTE.
Thanks for posting the resolution.
Click to expand...
Click to collapse
2100 UMTS_BC1 is actually T-Mobile's downlink
1700 UMTS_BC4 is T-Mobile uplink. :good:

DEEE38 said:
2100 UMTS_BC1 is actually T-Mobile's downlink
1700 UMTS_BC4 is T-Mobile uplink. :good:
Click to expand...
Click to collapse
That's correct. Then the question is, does flashing the baseband actually change the frequencies used by the phone? I didn't think it did but now it sounds like flashing the international baseband enables the 1700 frequency.

archie87 said:
That's correct. Then the question is, does flashing the baseband actually change the frequencies used by the phone? I didn't think it did but now it sounds like flashing the international baseband enables the 1700 frequency.
Click to expand...
Click to collapse
It seems so. The original a authors of the threads are the ones to give credits to. I was simply asking how to enable LTE back after the international baseband flash. Everything works great! 1900 bands picks up really well for 1900 band reframed on T-Mobile. When I get into a zone with AWS1700/2100 it changes over pretty quickly. As for LTE, it picks it up whenever the LTE is available. Currently I am using Open Signal's widget to see what kind of bands it picks up.
Here are the original two threads:
Stock firmware (credits to Spectre51):
http://forum.xda-developers.com/showthread.php?t=1752345
"Guide" (credits to mingkee):
http://forum.xda-developers.com/showthread.php?t=2180828

DEEE38 said:
It seems so. The original a authors of the threads are the ones to give credits to. I was simply asking how to enable LTE back after the international baseband flash. Everything works great! 1900 bands picks up really well for 1900 band reframed on T-Mobile. When I get into a zone with AWS1700/2100 it changes over pretty quickly. As for LTE, it picks it up whenever the LTE is available. Currently I am using Open Signal's widget to see what kind of bands it picks up.
Here are the original two threads:
Stock firmware (credits to Spectre51):
http://forum.xda-developers.com/showthread.php?t=1752345
"Guide" (credits to mingkee):
http://forum.xda-developers.com/showthread.php?t=2180828
Click to expand...
Click to collapse
Thanks, this is good to know because I am considering leaving AT&T and moving to T-Mobile.

help!
Who can help me recover bands and imei?

nguy3ntu4n said:
Who can help me recover bands and imei?
Click to expand...
Click to collapse
Where did you get the build at?

DEEE38 said:
Where did you get the build at?
Click to expand...
Click to collapse
I flash the JB 204. Then this error
http://forum.xda-developers.com/showthread.php?t=2273688

LTE T-Mobile
DEEE38 said:
It seems so. The original a authors of the threads are the ones to give credits to. I was simply asking how to enable LTE back after the international baseband flash. Everything works great! 1900 bands picks up really well for 1900 band reframed on T-Mobile. When I get into a zone with AWS1700/2100 it changes over pretty quickly. As for LTE, it picks it up whenever the LTE is available. Currently I am using Open Signal's widget to see what kind of bands it picks up.
Click to expand...
Click to collapse
I'm considering the Ion for my next phone for T-Mobile. So can you tell me are you happy with the LT28AT on T-Mobile? Are you getting 4G and LTE?

Sprint LG-LS980 that was unlocked for T-Mobile, but no LTE service

First off, I hope I am putting this in the proper section. The LG G2 I have is an original Sprint-branded device (LG-LS980), but it has been rooted/modded/flashed to be compatible with T-Mobile and I am hoping for some help with getting the phone to receive T-Mobile's LTE signal, so I wasn't sure what LG G2 section to post this in (Sprint's or T-Mobile's). If this is not the right place, please let me know where I should post it and I will be glad to move it to/re-post it in the appropriate section.
With that stated, I bought this phone from someone off of Craigslist two days ago. It was listed as an "Unlocked LG G2" and when I texted the guy and asked him what carrier the phone was for, he told me it was for T-Mobile; so I believed/assumed it was a T-Mobile LG G2 device that was also unlocked. When I met the guy in person, he was very friendly and gave me time to check out the phone myself and to test my T-Mobile SIM card in it. When I turned the phone on after inserting my SIM card to make a test call, the 'T-Mobile LTE' screen was shown during the startup process, which further led me to believe that it was, indeed, an actual T-Mobile LG G2. So, I bought the phone for $260. After I left and got to use the phone for a while, I noticed that there was no T-Mobile logo on the back of the phone, so I Googled the model number (LG-LS980) and realized that it was actually a Sprint device. After realizing this, I also noticed that the phone only displayed the '4G' logo on the front screen, which led me to believe that it was not picking up an LTE signal (I am not familiar with the LG G2, so I wasn't sure what symbol would be displayed). After logging in with my Google account and downloading/installing the SpeedTest.net app, I ran a few tests and it's definitely not getting LTE speeds; it even seems to be getting relatively-slow speeds for 4G/HSPA+ (around 6Mbps Up/2Mbps Down).
So, my question is this: Can this Sprint LG G2 properly receive an LTE signal with a T-Mobile SIM card? And if so, what do I need to do to make this happen?
For the record, the person who rooted/flashed/modded this phone seems to have done a good job in making it compatible with T-Mobile (for the most part). To my knowledge, everything other than picking up T-Mobile's LTE signal seems to be in excellent working order. The camera works nicely; even on 4G, opening webpages is still fast; the music player works; text and picture messaging work properly; and WiFi-calling is even showing up in the Settings as an option (which, to my knowledge, is exclusively a T-Mobile feature. The phone is even showing up as an LG-D801 in the device's Settings.
I also want to add that there is an icon for 'SuperSu Installer' with a message that reads, "Tap to install SuperSU and root your device," but I have been scared to even mess with this feature. I did click the SuperSU icon and a page opened that showed this: "SuperSu is not yet fully installed - your device is not fully rooted. To finish rooting, the SuperSU GUI needs to be installed. This can be done by instaling it through GooglePlay, or by downloading the flashable ZIP and installing it through TWRP." And there is some more to the message below that, but I did not want to take the time to type every word.
So, do I need to go through the process of "fully rooting" this phone in order to be able to properly receive an LTE signal with my T-Mobile SIM card? Or could I possibly damage the phone by trying that process without knowing what I'm actually doing? Or, is completing the rooting process something that needs to be done regardless, even if it's not going to help with with the LTE issue?
Also, I tried to change the APN settings in hopes of getting LTE to work, but the option to change/alter the APN settings seems to be disabled. Does this likely have something to do with the phone not being fully rooted?
I also want to mention that when I went to check for an update in the 'Update Center,' it is showing an 'Android System Update' that is specifically for T-Mobile and it's apparently 149.6 MB in size. Should I try to download and install this T-Mobile update? Or is this something that should not be done without fully rooting the phone with SuperSU Installer?
Also, for the record, it is currently running Android version 4.2.2, Kernel version 3.4.0, Build number JDQ39B, and Software version D80110c
I apologize for writing such a lengthy post, but I wanted to be thorough and try to give as much pertinent information as I could think of. FYI, the LG G2 I have is a 32GB device. I am considering just trying to trade it for a Nexus 5, Galaxy S4 or HTC One, to someone who knows about rooting/flashing/modding, but I figured I would at least ask if there might be a simple fix for the LTE issue before trying to trade/sell it.
I would sincerely appreciate any help that I get! And if I need to make a donation for the help, I would be glad to do so. Also, I can provide pictures and/or screenshots for any detailed information that I may need to provide to help with this issue. Thanks very much in advance to anyone who tries to help me with this issue!!

If its indeed the Sprint LS980 and not the T-Mobile D801, then you got screwed because the LTE bands are not compatible. File a complaint and get your money back. He probably modded it to enable GSM. If you sell it to a Sprint user make sure everything is back to stock or it may brick during an OTA, which the next person would blame you for.

Check out http://forum.xda-developers.com/showthread.php?t=2521276
Sent from my LS980 4G using Tapatalk

abhinav.tella said:
If its indeed the Sprint LS980 and not the T-Mobile D801, then you got screwed because the LTE bands are not compatible. File a complaint and get your money back. He probably modded it to enable GSM. If you sell it to a Sprint user make sure everything is back to stock or it may brick during an OTA, which the next person would blame you for.
Click to expand...
Click to collapse
Thanks for replying. As for what you're suggesting, that the Sprint LG G2 is not capable of receiving T-Mobile's LTE signal because of it not having the necessary LTE bands, are you absolutely sure of this? And if so, do you mean that it will not receive any LTE signal whatsoever with a T-Mobile SIM card? Or that it just does not have the proper bands to detect/receive all of the LTE bands?
As for the phone I have actually being the Sprint LG G2 (LG-LS980) device, I am sure that's what it is, as that is the model number that is on the bottom of the back of the phone. However, as I stated, I bought it from someone off of Craigslist (not eBay), so there is no way for me to file a complaint. However, I think I should be able to re-sell it and get my money back, as $260 seems to be a good/reasonable price for a 32GB model in excellent condition.
sudosurootdev said:
Check out http://forum.xda-developers.com/showthread.php?t=2521276
Sent from my LS980 4G using Tapatalk
Click to expand...
Click to collapse
Thanks for the link. I clicked it and checked out that thread, but I was not really sure what it was about. Are you suggesting that I could/should possibly go through the process to try to "Obtain Your MSL, Update PRL, Connect to DFS," because it might enable the phone I have to properly receive T-Mobile's LTE signal? If you would reply to this question and explain to me what good you think trying to go through that process might do for my situation, I would really appreciate it.
By the way, sorry for not replying last night, y'all. I work late-nights and was quite tired after I got home around 6:00 a.m. this morning.

Sprint LS980 uses 1900 MHz, 850 MHz, 2500 Mhz for LTE
2G: GSM850, GSM900, GSM1800, GSM1900
3G: UMTS2100 (B1)
4G: LTE1900 (B25), LTE800 (B26), TD-LTE2500 (B41)
http://pdadb.net/index.php?m=specs&id=5490&c=lg_ls980_g2_td-lte
Verizon VS980 uses the 700 Mhz, 1700/2100 Mhz bands for LTE
2G: GSM850, GSM900, GSM1800, GSM1900
3G: UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1)
4G: LTE700 (B13), LTE1700/2100 (B4)
http://pdadb.net/index.php?m=specs&id=4726&c=lg_vs980_g2_4g_lte
T-Mobile D801 uses the 700 Mhz, 1900 Mhz, 1700/2100 Mhz bands for LTE
2G: GSM850, GSM900, GSM1800, GSM1900
3G: UMTS850 (B5), UMTS1900 (B2), UMTS2100 (B1)
4G: LTE700 (B17), LTE1700/2100 (B4), LTE1900 (B2)
http://pdadb.net/index.php?m=specs&id=4810&c=lg_g2_d801_4g_lte
AT&T D800 uses the 700 Mhz, 850Mhz, 1900 Mhz, 1700/2100 Mhz bands for LTE
2G: GSM850, GSM900, GSM1800, GSM1900
3G: UMTS850 (B5), UMTS1900 (B2), UMTS2100 (B1)
4G: LTE700 (B17), LTE850 (B5), LTE1700/2100 (B4), LTE1900 (B2)
http://pdadb.net/index.php?m=specs&id=4978&c=lg_g2_d800_4g_lte
Bands are limited by hardware, not software.
Also note the Sprint 1900 Mhz LTE and Verizon 700 Mhz LTE bands are not compatible with the T-Mobile/AT&T 700 Mhz and 1900 Mhz LTE band as they use a different part of that spectrum.

abhinav.tella said:
Bands are limited by hardware, not software.
Also note the Sprint 1900 Mhz LTE and Verizon 700 Mhz LTE bands are not compatible with the T-Mobile/AT&T 700 Mhz and 1900 Mhz LTE band as they use a different part of that spectrum.
Click to expand...
Click to collapse
Sorry for quoting the entire post, but I'm at work and on my LG F3 (which has a really small screen), but are you specifically stating that it's physically impossible to get T-Mobile's LTE signal with the Sprint version of the LG G2 because it literally lacks the necessary physical hardware to be able to receive it?

AzAssassin said:
Sorry for quoting the entire post, but I'm at work and on my LG F3 (which has a really small screen), but are you specifically stating that it's physically impossible to get T-Mobile's LTE signal with the Sprint version of the LG G2 because it literally lacks the necessary physical hardware to be able to receive it?
Click to expand...
Click to collapse
Yes, only the AT&T and T-Mobile versions are inter compatible with the AT&T version having one extra band (850 Mhz)
For future reference use PDADB.net for accurate hardware information including sub-models. Its very good.

I wasn't aware that Sprint started using sim cards. Is this a hybrid GSM/CDMA phone? And which bands go with which?
So will this phone work, after unlocking, work with Chinese 3G (Band I 2100MHz) and 4G (Band 41 2500MHz) networks?

ther00kie16 said:
I wasn't aware that Sprint started using sim cards. Is this a hybrid GSM/CDMA phone? And which bands go with which?
So will this phone work, after unlocking, work with Chinese 3G (Band I 2100MHz) and 4G (Band 41 2500MHz) networks?
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Click to collapse
Sprint and Verizon's LTE technology requires the use of SIM cards because the device will connect to both the older network and the newer one at the same time. If you yank a SIM card from either carrier's device it will still connect to their CDMA-based network (with 3G technology) but to get their full LTE support it requires a SIM card.
Because of this, Sprint and Verizon devices released since roughly late 2013 have the potential - because they have SIM card slots - of being carrier unlocked. All Verizon devices come carrier unlocked with respect to the SIM card slot now because it was a part of the requirements they agreed to during the FCC bidding process to gain those new frequency allotments back in 2013 - you can go buy any Verizon phone right now, including the Droid Turbo (their flagship phone) and drop a SIM card in it from any other carrier and it'll work just fine without issues. It may not provide LTE support directly because of different LTE band/frequency support so that's what I'll explain below, just for the record, but it WILL work with any GSM SIM card right out of the box.
Sprint, however, wasn't bound by any such requirements and so their devices are not carrier unlocked but sometimes - please note I'm saying SOMETIMES they can be. The Sprint LG G2 is one of those times, and there are two basic ways to do it:
1) Either do all the necessary config/device adjustments to get the SIM card unlocked for use with GSM capabilities (very impractical solution and only useful if you absolutely refuse to use a custom ROM)
2) Use a custom ROM because all the work to unlock the SIM card slot for other carriers is already done for you by the developer of the ROM (or them using code that was ready to go). ROMs like CloudyG2 and others, once installed, offer the ability to use any GSM SIM card in the Sprint G2 without issues.
Having said that, the LTE aspect is where some have issues - Qualcomm "locks down" radio hardware based on the NV (non-volatile) firmware inside it and it's done that way based on the requirements the carrier sets forth. Sprint uses LTE bands (as noted in the post above) that are not directly compatible with T-Mobile's LTE bands - there's no overlap at all; if there were any overlap whatsoever you could feasibly get LTE to work with T-Mobile, but that's not the case with the Sprint G2.
The hardware in the phones is the same (with respect to the GSM capability and LTE falls under that umbrella), it's just that the radio hardware has been "locked down" to only use particular frequency bands. Theoretically it's possible to edit the NV and open up more bands (potentially supporting everything) but that's another thread altogether, literally, and has the side effect of potentially bricking the radio hardware if unsuccessful so people don't even bother with it.
Using the Sprint G2 with T-Mobile will get you HSPA+ capability that'll max out (theoretically) at 42 Mbps which is damned fast, plus HSPA+ offers better signal strength overall than LTE does and better building/structure penetration as well - and better battery life to some degrees (not like it was years ago when LTE hardware and software was truly unoptimized).
When I last had a G2 recently I was pulling about 38 Mbps down and 33 Mbps up in speed testing but I live like 2 blocks away from a T-Mobile cell site here in downtown Las Vegas with line-of-sight to the tower (no obstructions in between) and that's damned fast enough for me and most anyone. LTE is nice but it ain't everything...
Suffice to say if you have a Sprint G2 you're not limited to just using Sprint, obviously - but LTE support will only happen if you use a carrier that overlaps onto the LTE bands/frequencies that Sprint itself uses. That basically rules out any carrier in the US since the remaining carriers of the "big 4" (AT&T, Sprint, T-Mobile, and Verizon) all end up reselling their network service to every other smaller carrier or MVNO - the other 3 carriers don't use the same LTE bands/frequencies so you'll have to be outside the US aka non-domestic to get LTE support. The Verizon G2 offers the potential to get LTE on T-Mobile because they do both share LTE Band 4 but it depends on the precise frequencies in use - more than likely you'll still end up with HSPA+ support more than LTE.
That should clear it up a bit for you...
ps
Next time perhaps take a look at the date of the last post in a thread - this was almost a year old since the last post so... things haven't really changed with respect to the Sprint G2 and LTE on T-Mobile; this info is found in other threads if you do some searching but hopefully you'll understand things better now with the info I provided.

Thanks a lot for all that info. I did check the date and made a new thread as well. I just figured to get more exposure this way.
I understand not much has changed judging by the date but was new to phones capable of CDMA and GSM so wasn't sure how they labeled the bands.
I've looked over the instructions for SIM unlocking and LTE band unlocking but none of those mentioned what bands were for CDMA and which for GSM or if there's any commonly labeled frequencies as the information on CDMA is just not as well laid out in sources I've found.
I remember there being much talk about how iPhone 5s didn't have native support band 41 LTE, which is the only LTE band in China so I'm surprised that there's no talk of use in China of the Sprint LG G2, which seemed to be the only mainstream phone that had band 41 before the Nexus 5 and iPhone 6. Hell, the Galaxy series still doesn't have it. It's also a pain to search for phones with band 41 LTE as China and apparently Uganda are the only countries that have it and sites like gsmarena don't have it as a filter option.

galaxy tab t217s sprint network problem

hi i have a tab 3 sm-t217s sprint
well i saw the question about unlocking it , i unlocked mine with a box
now it accept any sim the problem is it cant find a network
the problem is its limited to certain CDMA800 (BC0), CDMA1900 (BC1/BC14) LTE1900 (B25)
Cellular Networks: CDMA800 (BC0), CDMA1900 (BC1/BC14)
Cellular Data Links: cdmaOne, CDMA2000 1xRTT, CDMA2000 1xEV-DO Rel. 0
Dual Cellular Network Operation: Dual standby
Secondary Cellular Networks: LTE1900 (B25)
Secondary Cellular Data Links: LTE-A
my question is:
is it hardware limited or firmware limited? and if it firmware limited how can change it?
using the sm-t217t firmware
Cellular Networks: GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS1700/2100 (B4), UMTS1900 (B2), UMTS2100 (B1)
Cellular Data Links: GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary Cellular Phone
Dual Cellular Network Operation: Dual standby
Secondary Cellular Networks: LTE700 (B17), LTE850 (B5), LTE1700/2100 (B4)
Secondary Cellular Data Links: LTE-A
thnx in advance

no body intrested ???

I have exactly the same tab as you do but it is nit unlock.
Can you please explain to me how you managed to unlock the sprint network please

stanliwise said:
I have exactly the same tab as you do but it is nit unlock.
Can you please explain to me how you managed to unlock the sprint network please
Click to expand...
Click to collapse
i unlock it with z3x-box
it read any sim now but cant find the network signal

acesama said:
i unlock it with z3x-box
it read any sim now but cant find the network signal
Click to expand...
Click to collapse
I wish i could help but am not so good at this.
If i may ask what is z3x-box, can you post a link i can follow to unlock mine?

I cant post links but google its hardware pieces that u have to buy