Develop Bugs

[QUEST] 4G LTE working T-Mobile radio/modem on AT&T Note 2 or Viceversa

Is there currently a working T-Mobile modem that gets 3G on T-Mobile for the AT&T note 2? Instead of the typical Edge. (same as on Note 1) I have my AT&T Note 1 with 3G on T-Mobile... Any releases yet for the Note 2? I already ordered the dual sim card adapter for the Note 2...
Sent from my SGH-I957 using XDA Premium HD app

TEKHD said:
Is there currently a working T-Mobile modem that gets 3G on T-Mobile for the AT&T note 2? Instead of the typical Edge. (same as on Note 1) I have my AT&T Note 1 with 3G on T-Mobile... Any releases yet for the Note 2? I already ordered the dual sim card adapter for the Note 2...
Sent from my SGH-I957 using XDA Premium HD app
Click to expand...
Click to collapse
I can't seem to get a straight answer on this either. I have been searching for 2 days now and I haven't been able to find any solutions. I have jediX on my unlocked AT&T phone with a T-Mobile sim and all I get is Edge. ive tried to put on the T-Mobile Radio and it just boot loops me.
I may have to try and find someone that wants to trade phones with me at this point.

I believe that most of the T889 roms have a radio built in.. Have you tried that?

papabear said:
I believe that most of the T889 roms have a radio built in.. Have you tried that?
Click to expand...
Click to collapse
yes i have, when i flash other roms that say the radio is included, it still shows the AT&T radio under settings>device info.
I have Jedi -X4 for Build number but,
i317UCALJ2 listed as the Baseband Version.
Model number shows SGH-T889.
if i try to flash a the T-mobile Radio, it just boot loops.

daver1 said:
yes i have, when i flash other roms that say the radio is included, it still shows the AT&T radio under settings>device info.
I have Jedi -X4 for Build number but,
i317UCALJ2 listed as the Baseband Version.
Model number shows SGH-T889.
if i try to flash a the T-mobile Radio, it just boot loops.
Click to expand...
Click to collapse
I have only just started looking into this myself and was expecting a working T-mobile radio that can be used on AT&T (or Rogers) to be floating around, considering they are all using hardware revision JRO03C.
Any help would be appreciated.

trade
daver1 said:
I can't seem to get a straight answer on this either. I have been searching for 2 days now and I haven't been able to find any solutions. I have jediX on my unlocked AT&T phone with a T-Mobile sim and all I get is Edge. ive tried to put on the T-Mobile Radio and it just boot loops me.
I may have to try and find someone that wants to trade phones with me at this point.
Click to expand...
Click to collapse
I am dealing with the same issue the other way (tmobile on att network, no lte), so if you ever look to trade, let me know.

Yjojimboo said:
I am dealing with the same issue the other way (tmobile on att network, no lte), so if you ever look to trade, let me know.
Click to expand...
Click to collapse
Please clarify: you have a T889 (TMo N2) device using an AT&T SIM, in an area confirmed to have AT&T LTE service, and you're getting no LTE? Have you tried flashing the modem package off an i317 (AT&T N2) onto your device to see if LTE gets activated that way?

Did you tried *#2263# and then u can choose lte 17 for att.good look ..

I didn't try those two, but I will right now. Tried another method using a long input string, but it didn't work.

Yep the *#*#4636#*#*doesnt work on theese roms, however the*#2263# works on the x5 rom but not on the 4.1.2 lk7 roms.on theese roms u can choose lte and hspa from mobile settings but there is not lte only option.do u have a succes with the code ,by the way you can try hspa plus on 1900 mhz on tmobile card with that code too.i tryed it and I can confirm it is 21mbits for now.

distortedloop said:
Please clarify: you have a T889 (TMo N2) device using an AT&T SIM, in an area confirmed to have AT&T LTE service, and you're getting no LTE? Have you tried flashing the modem package off an i317 (AT&T N2) onto your device to see if LTE gets activated that way?
Click to expand...
Click to collapse
000, I might try that
Sent from my SGH-T889 using xda premium

TMobile Modem on Galaxy Note 2 ATT i317
I am in the same situation as the OP. Looking to flash a T889 modem onto an ATT Galaxy Note 2 (i317) similar to the solution for Galaxy Note 1 ATT (i717) users using Tmobile network (by flashing a modified Amaze? modem).
Anyone successful in getting 3g TMobile speeds with their Galaxy Note I317?

browniegirl said:
000, I might try that
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
LTE should work if you do that, but make sure your IMEI is still OK, and have a backup phone if you try flashing back the T889 modem. My phone is stuck in a bootloop since trying to go T889V -> I317M -> T889V.

*#197328640#
*#197328640#

TEKHD said:
*#197328640#
Click to expand...
Click to collapse
what can we do with this code?

4g
Darkshado said:
LTE should work if you do that, but make sure your IMEI is still OK, and have a backup phone if you try flashing back the T889 modem. My phone is stuck in a bootloop since trying to go T889V -> I317M -> T889V.
Click to expand...
Click to collapse
I have an AT&T note 2 unlocked working a T-Mobile sim and 4G has been working from the start!

Did you double check that you're in a strictly AWS area, spectrum-wise?
Oh, and quick update: I was able to get the phone to boot with the I317M modem, switch it to diagnostic mode and fix the EFS NV entries. LTE works, not sure about AWS HSPA and not in a position to test.

Darkshado said:
Did you double check that you're in a strictly AWS area, spectrum-wise?
Oh, and quick update: I was able to get the phone to boot with the I317M modem, switch it to diagnostic mode and fix the EFS NV entries. LTE works, not sure about AWS HSPA and not in a position to test.
Click to expand...
Click to collapse
So you have a T889 and flashed I317M Modem and accessed the *#197328640# code and did what exactly? and you are getting LTE on AT&T?
please elaborate.... please...

TEKHD said:
So you have a T889 and flashed I317M Modem and accessed the *#197328640# code and did what exactly? and you are getting LTE on AT&T?
please elaborate.... please...
Click to expand...
Click to collapse
Hello TEKHD,
I have a T889V, but my carrier up here is Virgin Mobile Canada, whose network is technically closer to AT&T's band-wise. DC-HSPA 42 on 850 and 1900 MHz with LTE on Band 4 (AWS).
Reason I got a T889V is because I also keep a T-Mobile SIM for stateside trips, it was a bit cheaper and it leaves the door open to switching to Videotron in addition to the "Big Three".
I first unlocked the phone using the ServiceMode menu method.
I backed up /efs, and this is where I made my first mistake. I know I've been ranting about this for a few days now, you need a proper Qualcomm NV backup.
I usually stick to the Canadian ROMs as they tend to remain closer to their international brethren than the US ones, and also because they don't require tethering fixes. In this case, the T889V ROM also allows switching network modes between GSM, WCDMA and GSM/WCDMA/LTE easily.
I did modify the CSC files to remove the <CscFeature_Setting_DisableNetworkMode>lte</CscFeature_Setting_DisableNetworkMode> line in /system/csc/others.xml and even went so far as making a customized VMC CSC and reapplied that to get all the other little carrier tweaks like FastDormancy. The line is cosmetic only, as I've had it show 4G in the network icon and still get LTE, otherwise it shows 3G, H, H+ and LTE on the T889V. The other place I've seen it have an effect is in the network settings where it'll show GSM/WCDMA/LTE instead of GSM/WCDMA.
I've used Odin before, I have a download jig (two paralleled leftover 620kOhm resistors and a Sparkfun breakout board) and I've tarred my own images before with Cygwin.
To get the necessary files, I downloaded the stock T889V, I317M (Canadian LTE Note II variant, the one that'd actually be sold by VMC if they ever do.) and T889 ROMs from Sammobile.
My initial attempt to flash the I317M modem through Odin (as a standalone image) gave a fail before the phone began the actual writing process, i. e. it transferred the radio image without any issues. Later experiments show that only the T889V modem tar flashes with Odin, the T889 one doesn't either. Same goes for the whole, original Sammobile images, the modem partitions fail if you're cross-flashing.
I then used CWM with an update zip sourced here on XDA that included a "flash_image" binary to flash the 317M LJ2 modem. I used it to prep T889 and 889V zips as well. Rebooted the phone, it connected and gave me LTE, network icon and all. The before and after speedtests went from 3.5 to 35 Mbps. I did check and my IMEI showed 0 instead of, well, my IMEI.
No big deal, or so I thought, I'll just restore /efs in CWM, reflash the T889V modem and carry on. NOT.
The phone immediately started bootlooping, and the only way I initially got it to stop was to flash an N7100 boot.img. The S-Pen didn't work, nor did any networking apart from wifi. Getting QPST to talk to the phone was a bust as well; the hen and the egg.
I tried different combinations and couldn't fix the problem. (My flash counter sits well over 20 now.)
I got another poster (deeznutz1977) to send me his T889 NV backup (sans IMEI) the other day. I later had the idea of reflashing the I317M modem again, which did not boot loop after all (there may have been a matter of wiping /cache and Dalvik cache at the right time).
This time dialcode *#7284#, selecting "Qualcomm USB Settings" then selecting "RNDIS + DM + MODEM" worked. I could get the programs talking with the phone. I inserted my IMEI in deeznutz1977's backup, wrote that to the phone and rebooted.
The phone doesn't bootloop anymore, my IMEI is back, as is service on my current carrier. Plus, this configuration still works with AWS HSPA. The one catch is that bootloops resume if I reflash the T889V modem through either CWM or Odin.
I made a few more speed tests before writing this and managed to get an average 45 Mbps down and 12 up along with a 40 ms ping.
Hope that answered a few of your questions.
Regards,
Darkshado

Darkshado said:
Hello TEKHD,
I have a T889V, but my carrier up here is Virgin Mobile Canada, whose network is technically closer to AT&T's band-wise. DC-HSPA 42 on 850 and 1900 MHz with LTE on Band 4 (AWS).
Reason I got a T889V is because I also keep a T-Mobile SIM for stateside trips, it was a bit cheaper and it leaves the door open to switching to Videotron in addition to the "Big Three".
I first unlocked the phone using the debug menu method.
I backed up /efs, and this is where I made my first mistake. I know I've been ranting about this for a few days now, you need a proper Qualcomm NV backup.
I usually stick to the Canadian ROMs as they tend to remain closer to their international brethren than the US ones, and also because they don't require tethering fixes.
I did modify the CSC files to remove the <CscFeature_Setting_DisableNetworkMode>lte</CscFeature_Setting_DisableNetworkMode> line in /system/csc/others.xml and even went so far as making a customized VMC CSC and reapplied that to get all the other little carrier tweaks like FastDormancy. The line is cosmetic only, as I've had it show 4G in the network icon and still get LTE, otherwise it shows 3G, H, H+ and LTE on the T889V. The other place I've seen it have an effect is in the network settings where it'll show GSM/WCDMA/LTE instead of GSM/WCDMA.
I've used Odin before, I have a download jig (two paralleled leftover 620kOhm resistors and a Sparkfun breakout board) and I've tarred my own images before with Cygwin.
To get the necessary files, I downloaded the stock T889V, I317M (Canadian LTE Note II variant, the one that'd actually be sold by VMC if they ever do.) and T889 ROMs from Sammobile.
My initial attempt to flash the I317M modem through Odin (as a standalone image) gave a fail before the phone began the actual writing process, i. e. it transferred the radio image without any issues. Later experiments show that only the T889V modem tar flashes with Odin, the T889 one doesn't either. Same goes for the whole, original Sammobile images, the modem partitions fail if you're cross-flashing.
I then used CWM with an update zip sourced here on XDA that included a "flash_image" binary to flash the 317M LJ2 modem. I used it to prep T889 and 889V zips as well. Rebooted the phone, it connected and gave me LTE, network icon and all. The before and after speedtests went from 3.5 to 35 Mbps. I did check and my IMEI showed 0 instead of, well, my IMEI.
No big deal, or so I thought, I'll just restore /efs in CWM, reflash the T889V modem and carry on. NOT.
The phone immediately started bootlooping, and the only way I initially got it to stop was to flash an N7100 boot.img. The S-Pen didn't work, nor did any networking apart from wifi. Getting QPST to talk to the phone was a bust as well; the hen and the egg.
I tried different combinations and couldn't fix the problem. (My flash counter sits well over 20 now.)
I got another poster (deeznutz1977) to send me his T889 NV backup (sans IMEI) the other day. I later had the idea of reflashing the I317M modem again, which did not boot loop after all (there may have been a matter of wiping /cache and Dalvik cache at the right time).
This time dialcode *#7284#, selecting "Qualcomm USB Settings" then selecting "RNDIS + DM + MODEM" worked. I could get the programs talking with the phone. I inserted my IMEI in deeznutz1977's backup, wrote that to the phone and rebooted.
The phone doesn't bootloop anymore, my IMEI is back, as is service on my current carrier. One catch is that I am unable to test is if this configuration still works with AWS HSPA. The other is that bootloops resume if I reflash the T889V modem through either CWM or Odin.
I made a few more speed tests before writing this and managed to get an average 45 Mbps down and 12 up along with a 40 ms ping.
Hope that answered a few of your questions.
Regards,
Darkshado
Click to expand...
Click to collapse
Wow... thank you for taking your time and explaining everything... really, thank you... so you managed to completely transform your T889V into a I317M... that's why it now bootloops if flashing the original T889V... as it would if you really had an I317M... is that right?
you don't have access to a sim with the t-mobile band in order to test for just a minute?
So... here is my story... maybe I can help here with the transformation of T889 to I317 and viceversa... (or maybe an hybrid modem like the one for the Note 1)
-> I have both the AT&T I317 and the T-Mobile T889...
-> I also have both with dual sim card adapters...
-> I also have 1 Unlimited everything T-Mobile sim card & 2 AT&T unlimited everything sim cards...
I want to be able to keep the T889 with 1 sim -> working LTE on AT&T and the 2nd sim -> ready for future T-Mobile LTE...both sims in the dual sim card adapter on the same phone of course (I also want to sell the I317) just keep one universal LTE Note 2
What can I do here? Willing to sacrifice whatever I need to... in order to accomplish my objective... This will help everyone here on both carriers...
As for now... I have noted that while navigating on both phones thru the service menu... the I317 says ENS: ENABLED and the T889 says ENS: DISABLED ... searched on google... no answer.... ENS stands for? Emergency Notification System? lol
Is there anything I can do here since I own both phones... that can sort things out in order to unlock the LTE feature on the Tmobile variant? or is that something we all just have to wait for the carrier to do via OTA? Is there any modded modem that can solve this? Your I317M modem... can it do something here for the T889?
On the pictures the one on the left is the I317 and on the right the T889... both with AT&T sims at the moment of the picture. If I go outside, the AT&T Note 2 will get 4G icon (LTE) and the T-Mobile Note 2 will stay in HSPA+...
I have MTP + ADB on both phones when using code *#7284# also... is there anything useful in this code besides unlocking phone? *#197328640# ??? Diagnostic mode here... *#0*# any more codes?

Use Verizon note 4 on AT&T

I got Verizon Note 4.
Verified that it is unlocked. Not stolen. No contract binded from Verizon store and through phone (Clean phone)
Android Version : 5.0.1
Location: Las Vegas
Insert AT&T sim card. No signal.
Change APN setting following the information on AT&T website. Still not working. No signal.
At&t store rep. said I need to l unlock the phone ( I already check with Verizon via phone and store)
Verizon rep. on phone said: I should be able to use the phone with At&t sim card
Verizon Rep. in store said : Galaxy note 4 won't work on AT&T. It needs to be rooted by an expert. Only Galaxy S5 or later version will work.
I searched websites and many say that they are using Verizon Note 4 on AT&T network (At&t sim card)
I just need to use phone and text message. No data needed.
Anybody can help me?

I was able to use SIM from AT&T before yesterday, but after trying to update the firmware using Software Upgrade Assistant tool on Windows 10, it's now stuck at 'searching for service'.

Did you change the network settings from global to lte/GSM?

I am reading this. Maybe a solution.

Did you try to insert a different carrier sim card and entering the unlock code?
---------- Post added at 09:27 PM ---------- Previous post was at 09:24 PM ----------
After reading post i see you have a att sim sim on verizon phone. This could be a problem as verizon and att dont play nice. Stupid question is did you actually pay for service?

cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse
I did. Not working

It is not working. No verizon sim card message is gone but still no signal.
sam369 said:
I am reading this. Maybe a solution.
Click to expand...
Click to collapse

Yes I did. Not working
cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse

dayse said:
It is not working. No verizon sim card message is gone but still no signal.
Click to expand...
Click to collapse
Yeah. Me either.

Did you do a factory reset after software update. Usually helps. Also mess with APN settings. Reboot after changing APN.

Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.

sam369 said:
Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.
Click to expand...
Click to collapse
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA

ftkftw said:
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA
Click to expand...
Click to collapse
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.

sam369 said:
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.
Click to expand...
Click to collapse
I just updated via the Verizon tool (BPA1 finally showed up) and it was, surprisingly, perfectly fine. I first backed up as much as I can (via Smart Switch and Helium app), then pulled my mSD card, left my SIM card in the phone, and proceeded to update. After the first boot stuff (app optimization, etc.) I soon saw the AT&T sign in the notification bar, and I was able to make a phone call without doing anything else. With all the reports of SIM card locking after updating I was worried that I might run into the same issue, but was pleasantly surprised that I didn't. I had to re-enter the APN setting as the upgrade seemed to have removed it, but after re-adding Cricket's APN I was able to get cellular data as well.
Thanks again for your help

You need to access the hidden menu and change your radio and modem protocols. There's a forum on XDA called domestic and internation sim or network unlock for spring but should work the same on verizon

fyi, i got my note 4 working on gsm using 2 different freedompop sims-the at&t lte sim gets lte via band 4.
the global sim based on t-mobile did get hpsda+
just change the apn

Can HTC 10 Sprint Unlocked using other carriers LTE?

I have a HTC 10 Sprint unlocked, can i use it with other carriers LTE like AT&T or T-mobile? Thanks guys

hainguyen91 said:
I have a HTC 10 Sprint unlocked, can i use it with other carriers LTE like AT&T or T-mobile? Thanks guys
Click to expand...
Click to collapse
I took the chance myself and as it turns out it does work!
I can give mire detailed information and proof later.

You could convert it to a unlocked HTC 10 also. I did it to my Verizon HTC 10, now it's us unlocked with att

afuller42 said:
You could convert it to a unlocked HTC 10 also. I did it to my Verizon HTC 10, now it's us unlocked with att
Click to expand...
Click to collapse
Sprint HTC 10 is a different animal. The bands will not unlock with the conversion and the GSM radio from Unlocked FW is not compatible. You would still need to flash the Sprint Radio back.

jblparisi said:
Sprint HTC 10 is a different animal. The bands will not unlock with the conversion and the GSM radio from Unlocked FW is not compatible. You would still need to flash the Sprint Radio back.
Click to expand...
Click to collapse
did you managed to unlock lte band for sprint htc 10 (bootloader unlocked, S-off)? i tried to flash with US Unlocked but no imei, flash back to sprint RUU, and nv unlock it. now i'm stuck at 3G and 2G. tried with DFS i need to unlock LTE band 3 or 8 but also useless.
any advice?
the attachment is after i reflash to Sprint RUU
thanks

I have a Sprint unlocked variant running 4G on Telcel MX, in theory you can flash another firmware variant (S-OFF, of course), but the radio must be still from the equivalent Sprint firmware...

kenter said:
did you managed to unlock lte band for sprint htc 10 (bootloader unlocked, S-off)? i tried to flash with US Unlocked but no imei, flash back to sprint RUU, and nv unlock it. now i'm stuck at 3G and 2G. tried with DFS i need to unlock LTE band 3 or 8 but also useless.
any advice?
the attachment is after i reflash to Sprint RUU
thanks
Click to expand...
Click to collapse
I moved on to a v20 and v10, but as I recall yes I did unlock them for ATT specifically. Tmobile LTE support is already there, but not ATT(missing one of the bands I forget which)

jblparisi said:
I moved on to a v20 and v10, but as I recall yes I did unlock them for ATT specifically. Tmobile LTE support is already there, but not ATT(missing one of the bands I forget which)
Click to expand...
Click to collapse
Care to educate this ignorant fool?
Thanks

It has most bands you are good

kenter said:
Care to educate this ignorant fool?
Thanks
Click to expand...
Click to collapse
Google around for LTE band unlock QXDM method for htc. You'll need the htc diag mode drivers and Qualcomm's QXDM program. I was able to unlock all of the US bands for my phone.
Edit
This was the method I used. It still works in LeeDroid (used a few weeks ago): https://forum.xda-developers.com/one-m9/general/how-to-change-network-bands-gsm-devices-t3135401

thunder2132 said:
Google around for LTE band unlock QXDM method for htc. You'll need the htc diag mode drivers and Qualcomm's QXDM program. I was able to unlock all of the US bands for my phone.
Edit
This was the method I used. It still works in LeeDroid (used a few weeks ago): https://forum.xda-developers.com/one-m9/general/how-to-change-network-bands-gsm-devices-t3135401
Click to expand...
Click to collapse
Are yours is sprint htc 10 or other than that?
Cheers

kenter said:
Are yours is sprint htc 10 or other than that?
Cheers
Click to expand...
Click to collapse
Mine was a network locked Sprint model. I unlocked the sim first then unlocked the bands. I'm on AT&T now with full LTE support and all of their bands unlocked. Verizon is the only one our phone won't work with.

thunder2132 said:
Mine was a network locked Sprint model. I unlocked the sim first then unlocked the bands. I'm on AT&T now with full LTE support and all of their bands unlocked. Verizon is the only one our phone won't work with.
Click to expand...
Click to collapse
Thank you mate. Let me trying and i'll get back to you later. Cheers

kenter said:
Thank you mate. Let me trying and i'll get back to you later. Cheers
Click to expand...
Click to collapse
Sounds good, basic process was this:
1. Install HTC diag drivers
2. Dial ##diag# in dialer or execute adb shell commands to enter diag mode
3. Open QXDM, go to options and communications, select your device and open communications to it (don't remember exactly how to do this, it was pretty self explainatory)
4. In QXDM, go to NV-items then find the LTE configs (pointed out in the threads linked)
5. Use an LTE nv calculator to find the DEC number for the bands you want (select all bands you want and it'll put out a number)
6. Enter this number into QXDM and write it. (there are two places to enter it)
7. Exit diag mode and reboot.
8. This should survive for quite some time, any time you do a ruu double check to see if it held. Factory wipes from recovery should be fine. Using a new rom should be fine. When I wiped modemst1 and modemst2 I lost this and had to redo it.

thunder2132 said:
Sounds good, basic process was this:
1. Install HTC diag drivers
2. Dial ##diag# in dialer or execute adb shell commands to enter diag mode
3. Open QXDM, go to options and communications, select your device and open communications to it (don't remember exactly how to do this, it was pretty self explainatory)
4. In QXDM, go to NV-items then find the LTE configs (pointed out in the threads linked)
5. Use an LTE nv calculator to find the DEC number for the bands you want (select all bands you want and it'll put out a number)
6. Enter this number into QXDM and write it. (there are two places to enter it)
7. Exit diag mode and reboot.
8. This should survive for quite some time, any time you do a ruu double check to see if it held. Factory wipes from recovery should be fine. Using a new rom should be fine. When I wiped modemst1 and modemst2 I lost this and had to redo it.
Click to expand...
Click to collapse
i've tried with official sprint but no luck also i flash to LeeDroid v.3.9.0 stable doing exactly as you told above
using QXDM and NV calculator to change/add the lte band i want.
it just not picking up any lte signal from band 3 on *#*#4636#*#*
perhaps any step i'm missing?
thank

What carrier are you on? Have you tested with another phone to see if band 3 is active in your area?
Sent from my HTC 10 using XDA Labs

thunder2132 said:
What carrier are you on? Have you tested with another phone to see if band 3 is active in your area?
Sent from my HTC 10 using XDA Labs
Click to expand...
Click to collapse
well, i'm not in the USA. i'm in indonesia.
i've tried with iphone and see band 3

kenter said:
well, i'm not in the USA. i'm in indonesia.
i've tried with iphone and see band 3
Click to expand...
Click to collapse
Sorry, no clue. My best recommendation would be to do the process over and see if your settings stuck.
Sent from my HTC 10 using XDA Labs

thunder2132 said:
Mine was a network locked Sprint model. I unlocked the sim first then unlocked the bands. I'm on AT&T now with full LTE support and all of their bands unlocked. Verizon is the only one our phone won't work with.
Click to expand...
Click to collapse
Are you 100% sure that the sprint version can't work on verizon even with unlocking all the bands and unlocking sim? What about doing this - https://forum.xda-developers.com/verizon-htc-10/how-to/guide-convert-unlocked-to-verizon-t3380615? Or does your phone have to be officially US unlocked version to do the switch? I'm s-off, sim unlocked, using the sprint version with AT&T right now and want to use it with a verizon mvno. So is that absolutely not possible or should I just give it a shot and see what happens? Thanks

cjbr0wn said:
Are you 100% sure that the sprint version can't work on verizon even with unlocking all the bands and unlocking sim? What about doing this - https://forum.xda-developers.com/verizon-htc-10/how-to/guide-convert-unlocked-to-verizon-t3380615? Or does your phone have to be officially US unlocked version to do the switch? I'm s-off, sim unlocked, using the sprint version with AT&T right now and want to use it with a verizon mvno. So is that absolutely not possible or should I just give it a shot and see what happens? Thanks
Click to expand...
Click to collapse
The Sprint version requires the Sprint radios are in use, otherwise it won't get any signal. The Sprint radios are incompatible with Verizon, so it can't be done.

Verizon Note 8...T-Mobile sim - help

Hello all, new here and I just purchased a Note 8 from Verizon. The device is paid off fully and i wish to use my T-Mobile simcard in it but it does not seem to be picking up a signal. I did update the verizon software to the latest version when i had my verizon sim card inserted. Verizon customer service told me i need to reset to factor setting then my t-mobile sim should work but this has not helped.
How can i get my t-mobile sim to work? Any help appreciated as i am new to android phones!
Thanks

Hi there, you must flash the new N950U1 2BQK1 or N950U 2BQK2 stock firmware to have full access of T-MOBILE Network. It's the only way it will work, I have AT&T NOTE 8 working on Verizon network with zero problem.
---------- Post added at 02:35 PM ---------- Previous post was at 02:31 PM ----------
It's a very easy process to flash the 4 US Carriers firmware, I have done it more than 50 times and I'm not a developer.

kdecoteau1 said:
Hi there, you must flash the new N950U1 2BQK1 or N950U 2BQK2 stock firmware to have full access of T-MOBILE Network. It's the only way it will work, I have AT&T NOTE 8 working on Verizon network with zero problem.
---------- Post added at 02:35 PM ---------- Previous post was at 02:31 PM ----------
It's a very easy process to flash the 4 US Carriers firmware, I have done it more than 50 times and I'm not a developer.
Click to expand...
Click to collapse
I would like to know where to get the firmware and with what do you flash it with? Is there a instructions thread or link.
It's been over 5 years since I have tinkered with a Samsung device.

Hi there. You'll need to have your Note 8 Bootloader version on level 2, meaning 2BQK2, 2BQJA or anything with 2 before the last 4 digits.
1) tmobile SIM card in device
2) Odin v3.12.7 make sure extract
3) 2BQK2 firmware extract all files
4) put all 4 set of firmware files in the right manner, bl,ap,cp and csc. Don't used home-csc only CSC.
Odin and firmware https://androidfilehost.com/?fid=673791459329067572 2BQK2
https://androidfilehost.com/?fid=962157660013069130 2BQL5
https://drive.google.com/open?id=1bRz4RQzmloSgsuYmyLu92cktT_f8hIYp
Unlock firmware
1) any carrier SIM card
2) Odin v3.12.5 Prince Comsey or modified Odin, make sure extract
3) 2BQK1 firmware, extract all files.
4) put all 4 set of firmware files in the right manner, bl,ap,cp and csc. Don't used home-csc only CSC
Odin and firmware https://androidfilehost.com/?fid=745849072291691586 2BQK1
https://androidfilehost.com/?fid=817906626617955896 2BQL2
https://drive.google.com/open?id=1Lw79Q5npvMRdME33-ioqy692ClZ36n4U
First instructions is for if you want stock US CARRIER BLOATWARE FIRMWARE, second instructions is if you want SAMSUNG STOCK FIRMWARE. Follow steps and everything will be fine, happy flashing.

So wait, I have a Verizon Note 8 (currently using MetroPCS perfectly), but I wanted a stock Samsung ROM (without the Verizon crap on it), I can just flash the second set of files instead and done with it?

Yes

Can I use a gsm sim card and a verizon sim card at the same time on verizon branded phone? I see you have to flash the firmware above but am wondering if this would help me.

So much misinformation in this thread.
I don't even know where to start:
The OP was asking why his T-Monile SIM wouldn't work. It doesnt matter which firmware you're on, if the Note 8 is unlocked (the Verizon Note 8 IS unlocked), and it has a clean IMEI, and your SIM is already activated, then it will get 4G LTE. I know. I have a Verizon Note 8, and use it on Tmobile. I used it for over 24 hours with my T-Mo SIM but running thr Verizon firmware with no issues. Only reason I flashed T-Mobile firmware was to rid myself of Verizon bloat and to get wifi calling.
As far as bootloader, that has no effect on the SIM card working. The OP would need a v2 bootloader firmware if his current firmwarealso had the v2 bootload. It probably does, so thats a moot point, but the implication was the v2 bootloader was the only one that would make his SIM work.
I hope the OP got it all figured out.

mmdpkaaa said:
Hello all, new here and I just purchased a Note 8 from Verizon. The device is paid off fully and i wish to use my T-Mobile simcard in it but it does not seem to be picking up a signal. I did update the verizon software to the latest version when i had my verizon sim card inserted. Verizon customer service told me i need to reset to factor setting then my t-mobile sim should work but this has not helped.
How can i get my t-mobile sim to work? Any help appreciated as i am new to android phones!
Thanks
Click to expand...
Click to collapse
If you want T-Mobile to work best follow the switching carrier guide to change CSC code to TMB and then flash the Latest T-Mobile Firmware...
https://forum.xda-developers.com/showpost.php?p=74087340&postcount=1
unitop4 said:
Can I use a gsm sim card and a verizon sim card at the same time on verizon branded phone? I see you have to flash the firmware above but am wondering if this would help me.
Click to expand...
Click to collapse
No way to dual SIM US models without trying to modify the SIM tray...and some have damaged trying to...

BlueFox721 said:
If you want T-Mobile to work best follow the switching carrier guide to change CSC code to TMB and then flash the Latest T-Mobile Firmware...
https://forum.xda-developers.com/showpost.php?p=74087340&postcount=1
No way to dual SIM US models without trying to modify the SIM tray...and some have damaged trying to...
Click to expand...
Click to collapse
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.

Mr. Orange 645 said:
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.
Click to expand...
Click to collapse
Another user had SIM issues and flashed back to factory (theirs was unlocked) then changed carriers and SIM worked again...sometimes a clean flash can work...

Hi all. For me I flash all firmware at clean wipe, never any issues. I have an unlock AT&T Note 8 unlock running the latest Verizon firmware with VZW SIM active. I also have a t-mobile S8+ unlock and running the latest U1 firmware and working with Verizon SIM active. I constantly switch my firmware between tmobile, verizon and at&t to see performance and what ever else feature added.

kdecoteau1 said:
Hi all. For me I flash all firmware at clean wipe, never any issues. I have an unlock AT&T Note 8 unlock running the latest Verizon firmware with VZW SIM active. I also have a t-mobile S8+ unlock and running the latest U1 firmware and working with Verizon SIM active. I constantly switch my firmware between tmobile, verizon and at&t to see performance and what ever else feature added.
Click to expand...
Click to collapse
How did you get ATT N8 to work on VZW? I flashed my Tmo to VZW and i could never get speeds above 1mpbs. Even with unlocked firmware it did not get anywhere with VZW. I heard that its because the IMEI is not in VZWs database.

Hi there. My AT&T Note 8 works great on Verizon network, it's running the latest N950U1 Firmware 2BQL2, everything works great. It will work good on T-Mobile too, lately tmobile network giving trouble, sometimes less than 1 mbps on download. Since June 2017 I been having trouble with tmobile network in my area and around, so I switch to Verizon, couldn't bother the crappie service. My location I get 215 mbps on my note 8, IPhone 8 plus 147mbps download. I prefer Tmobile but it's not working good in area anymore.

[/COLOR]
Mr. Orange 645 said:
plus the second SIM wouldn't have an IMEI assigned to it.
And I agree the OPs best bet is to flash thr T-Mobile firmware. But his issue was he wasnt getting a signal at all with his T-Mo SIM. Flashing firmware won't fix that. Source: I have a VZW Note 8 on T-Mo. Used it with the VZW firmware and a T-Mo SIM with no issues.
Click to expand...
Click to collapse
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will doing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.

Pastor X said:
[/COLOR]
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will performing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.
Click to expand...
Click to collapse
Nevermind, I fixed it. I had to perform the carrier switch and flash Tmo's firmware. Running perfectly!

Pastor X said:
[/COLOR]
@Mr. Orange 645
I currently have a Verizon Note 8 with a TMO SIM and I'm getting 4GLTE but a few problems. Most of the incoming calls forward to voicemail and all outgoing calls the data has to drop completely before the call can connect. Will doing the carrier switching updates listed in the link above as well as flashing T-Mobile firmware assist with this problem? The phone is on 2BQK2 currently.
Click to expand...
Click to collapse
Omg exacly whats happening to me? So what steps have you guys followed? Should I switch to T-mobile, or to factory unlocked?
I have Verizon phone, unlocked, and I use T-mobile sim card.
I would appreciate the help
Sent from my SM-N950U using Tapatalk

Verizion note8 with tmobile sim card
This is what happened when I changed carriers from the original verizon note8, on verizon network, with verizon sim and the most recent verizon pie update, to a carriers sim, that is tmobile service. And what happens, I didn't even think was possible... I put the new carriers sim in, truconnect, booted and let the phone register the new sim and network. Checked for update.... the was one, let the phone download and update. And you know how Verizon's boot logo is... it wasn't anymore. Booted the tmobile boot logo and sounds, strange. I'm not super noob and the little bit of knowledge and experience that I do have with roms and updates across carriers usually require physically flashing the rom. Correct me if I'm mistaking. Continuing.... optimizing apps....., huh?! The update flashed the tmobile software, without effecting any personally installed apps. Though the update did remove all the verzion software/bloatware, without permissions, and installed tmobile apps. 2 that are meant for user usage. They are tmobiles device unlock and the tmobile app. Which I might add, do not function, I surmise, because in not on the actual main tmobile network, but a scabbed on. I have never seen or experienced anything of the short. Please tell me if this is normal.? I was a bit upset. I did not give any carrier the permission to delete or install any app on my phone. But maybe things have changed since I dabbled. And If they have, maybe this might help the people that have been using Odin to get tmobile version rom while originally being a verzion phone. I dont think it's normal. Please tell me if this has happened to you.

Flashing G930U to G930V

What are the steps to flash g930u on g930v?
I just purchased S7 from the ebay. Unfortunately it is a verizon version and I am not a fan to say at least. I am on ATT and also planning to travel, so I need many more LTE bands than G930V has. It is running G930VVZW4BRC3
- is it true that additional LTE bands can be enabled on any Qualcomm device? If not, at least I want to flash G930U onto G930V to get rid of crapware.
- I had downloaded the latest G930U firmware from the updato.com G930UUEU4BRD1. Is that the files to flash or are there various files around here on XDA, with fixes applied
- Do I just flash all the files from the zip via Odin?
is this guide still relevant? https://www.reddit.com/r/GalaxyS7/comments/5izd45/snapdragon_flash_unlocked_u_firmware_with_other/

If you flash a newer U variant than your V variant that should be all that's needed. I went directly from BRA1 Verizon to BRA1 U AT&T without issue
Edit: As for odin files, plenty of builds out there but make sure you go with one ~2gb in size. Otherwise itll just be a partial update (~200mb normally). U and V are identical hardware so you won't get software issues other than xyz carrier app not being there (or depending on provider of SIM, data might also be an issue).
Reddit link looks valid but it's basically "get odin and flash your build that would work given your current software and model" (I had to go to generic V variant firmware from U before returning to verizon V variant as Verizon's recovery didn't like the U model). If issues, try different builds or different Odins

Thanks!
What confused me the most is: https://www.phonemore.com/compare/p...m-g930v-vs-samsung-galaxy-s7-sm-g930a/3257631
Basically, it looks like g930v is missing some of the LTE bands.
I was able to install the latest G930U firmware, but now it is proving itself rather hard to verify what band my phone is using. It says LTE, but plenty of apps claim to display the LTE band, but none seem to do so.

JupoozunEd3 said:
Thanks!
What confused me the most is: https://www.phonemore.com/compare/p...m-g930v-vs-samsung-galaxy-s7-sm-g930a/3257631
Basically, it looks like g930v is missing some of the LTE bands.
I was able to install the latest G930U firmware, but now it is proving itself rather hard to verify what band my phone is using. It says LTE, but plenty of apps claim to display the LTE band, but none seem to do so.
Click to expand...
Click to collapse
https://forum.xda-developers.com/sp.../guide-enabling-additional-lte-bands-t3563474
this thread is a guide on how to enable certain bands on the phone being limited by firmware, as far as the hardware goes every s7 snapdragon have all the same contents just the firmware locking out to make it difficult to switch carriers.

kani!bal said:
https://forum.xda-developers.com/sp.../guide-enabling-additional-lte-bands-t3563474
this thread is a guide on how to enable certain bands on the phone being limited by firmware, as far as the hardware goes every s7 snapdragon have all the same contents just the firmware locking out to make it difficult to switch carriers.
Click to expand...
Click to collapse
I figured it out. There is a code *#2263# that displays the band information. However, if SIM is in, it complains that "RAT selection is locked,". By removing the SIM, and rebooting, the *#2263# works and you can enable/disable bands.