yashsingh1/xdaforums huggingface dataset:
[Verizon HTC One (M8)] xrodx:
OK guys I've finally unlock the LTE Band 7, here are the steps (thanks [MENTION=4220801]regspy[/MENTION], [MENTION=2604616]BobbySteel[/MENTION])

1. I have Stock ROM (4.4.2) and last firmware installed and root.

2. Download the files you will need HERE install QPST and QXDM, u can get the drivers intalling HTC Sync Manager from HTC webpage.

3. Dowload Terminal Emulator from the market.

4. Open the terminal emulator and put the code on [MENTION=4220801]regspy[/MENTION] guide HERE

5. Put your phone in CDMA mode.

6. Open your phone dialer and type ##3424# (an image should be appear on your phone screen).

7. Connect the phone to your PC.

8. Go to start, all programs, QSPST, open QPST configuration (as admin).

9. On QPST configuration go to Ports and click on add new port.

10. Open device manager, go to PORTS and check what port are using your phone.

11. On QPST configuration fill the PORT and PORT LABEL, PORT LABEL should be HTC Diagnostic Device or something like that, now click OK.

12. Now open QXDM.exe (as admin).

13. Go to options, communications.

14. On TARGET PORT select your HTC phone and click ok.

15. On VIEW select NV Bowser.

16. Find +6828 click read button and backup the stock value on a paper, txt file, etc just in case.

17. Repace Both values with 524356 and click WRITE.

18. Do the same with +6829, use the same value.

19. Reboot and enjoy!!

20. Put the phone in Global Mode.

Stock GSM Values (thanks to [MENTION=2604616]BobbySteel[/MENTION]):

441: 0xfff

946: 0xbfff

1877: 562950035735431

2954: 4294967295

Regards!
[Verizon HTC One (M8)] xrodx:
SORRY FOR DOUBLE POST :p:p:p:p:p
[Verizon HTC One (M8)] rpalmerin:
Gonna try this tonight... Are you on Verizon? I ask cuz I have a vzw m8 on T-Mobile, and hope this helps abit. I'm still trying to unlock aws band to be more compatible with tmo
[Verizon HTC One (M8)] xrodx:
No, im from Chile and bought a VZW one m8 from ebay, here we use lte band 7. As advice if this NV value dont work try to get 6828 and 6829 NV value from a TMO One M8.
[Verizon HTC One (M8)] rpalmerin:
That's a good idea. Haven't thought of asking anyone about that yet thanks
[Verizon HTC One (M8)] cincon:
For us?

hi guys,is it important for people who has Verizon m8 in europe?(we are still using 3g/h) ?
[Verizon HTC One (M8)] CheateR92:
Same here. I use it in Bulgaria and LTE is very limited, also AFAIK LTE shortens the battery life..

If you don't have coverage and you have LTE it will keep scanning -> battery drain :D
[Verizon HTC One (M8)] xrodx:
Its very possible in fact I got the NV value from a Europe htc one m7.

Regards
[Verizon HTC One (M8)] cincon:
so

what should i do for European people who have 3g/h neywork?

pls help me =)
[Verizon HTC One (M8)] BobbySteel:
This works in Europe too
[Verizon HTC One (M8)] tabi13:
Working in Uk?

The strangest thing... I enabled said bands while I was visiting Pakistan and it IMMEDIATELY worked (provider there uses band 3, 1800 MHz) It worked just fine in Dubai as well, also on band 3 and on my EE sim on roaming on etisalat. But then I get back to Uk and still no LTE. Just HSPA!

I am on EE network which I am sure uses band 3 as well. I know there is an LTE signal in my area because when I pop my sim in my wife's iPhone 5 (not 5s) it picks LTE immediately (which I believe is only capable of band 3 in UK)

Also, I am not getting LTE on my Verizon anywhere at all.

So I know band 3 was unlocked because it worked great in Pakistan and Dubai but its not working here. Anyone have any ideas why this is?

[MENTION=2604616]BobbySteel[/MENTION]: does yours work in Uk?
[Verizon HTC One (M8)] BygSii:
So if I am American, do I even need or want to try this?
[Verizon HTC One (M8)] robocuff:
If you're on Verizon; no.
[Verizon HTC One (M8)] aspiraMusk:
What about me ? I have AT&T and current use only HSPA+

do you have an idea if this band that you unlocked is also available on ATT?

Great job ;)
[Verizon HTC One (M8)] hyperfire21:
What are the default LTE bands the verizon m8 comes with?

Also is it possible to unlock AWS HSPA+ bands?
[Verizon HTC One (M8)] BobbySteel:
I have the exact same problem. I can't get any UK sim cards to reliably work in the UK but it works well in every other EU country I'm in. I've tried both Voda and O2 UK. Strangely though there are a few locations (near Victoria for example) where 4g *does* work. But it's geographically small and other areas my old sgs4 got 4g don't work on this handset w the same sim. Bizarre.
[Verizon HTC One (M8)] hyperfire21:
I was hoping this would be a more popular thread but guess the phone is getting old now...
[Verizon HTC One (M8)] rickylambert:
AFAIK, HTC One M8 has LTE bands 4/13 unlocked. And it´s global on 3G.

Edit: Bands 4/13 only(NV 6828 = 4104, same NV 6829)
[Verizon HTC One (M8)] rickylambert:
TMO uses LTE bands 2-4-12 in the continental US and Verizon 4-13. Therefore you should unlock bands 2-12 to use both carriers.

So, NV6828 and NV6829 original values(4104) must be replaced with 6154. Hope this helps.

---------- Post added at 03:53 PM ---------- Previous post was at 03:43 PM ----------

Both Vodafone and O2 use LTE band 20 in the UK, are you sure that band is enabled?
[Verizon HTC One (M8)] rpalmerin:
Thanks, yeah I've been getting lte since September when I switched over to T-Mobile, so that's not really the issue even though I thought that was it,... I think my issue it's cc with the aws band that T-Mobile runs on that I don't get that's the culprit... Any ideas on how to get that going? Cuz I get wcdma lte and basic 2g gms, but when it switches from tower to tower, it's what in having issues with
[Verizon HTC One (M8)] David del Mar:
Working for me in Costa Rica

Thanks!

It works for me with the Kolbi network on ICE. I'll try with Movistar and report back when I have a chance.
[Verizon HTC One (M8)] elander:
Hello, I live in the Dominican Republic my carrier is Orange Dominicana (GSM based and 3g on the 900mhz band) the thing is that on the Verizon stock rom(4.4.4) I simply put the sim card and it detected it and I was using 3g without issues, then I flashed vipers 4.4.4 kitkat rom and used it without issues I was messing with the phone settings as and after flashing a lollipop rom the phone was showing the "H" icon but it refused to load any website or connect to internet in any way. so after some serious troubleshooting (including reflashing 4.4.4 firmware) I got back to the viper rom that previously worked, but then viper released an lollipop based rom yesterday , I flashed it and the problems came back, foolish me started messing around instead of going back to the known working backup, I went to the menu where you can select the bands and a started selecting them one by one as a last resort, but now I can only select between "US band" and 1900mhz band,now I'm stuck in edge as I said before I need the 900mhz band, (which I supposed was there before) how could I have "erased" the other bands? should I follow this tutorial to get them all back?

sorry for the rather long post, but I'm a bit confused and a little (a lot,actually) frustrated.

thank in advance.
[Verizon HTC One (M8)] jaimeivan:
Amigo estoy en México con telcel y no toma la red 4g con esto podría hacerlo funcionar?
[Verizon HTC One (M8)] xrodx:
No estimado ya que TELCEL utiliza la banda 4, debes buscar el codigo que desbloquea esa banda y cambiarlo por el que puse en la guia.

Saludos
[Verizon HTC One (M8)] aletenista:
Amigo soy nuevo en el terminal emulator....

No puedo realizar los comandos que se describen... Porfavor indicame como para aprender y poder lograrlo porfavor.

Disculpa las molestias
[Verizon HTC One (M8)] Raneto:
There`s still hope!

I have been looking for this forever!!

I have the same M8 from Verizon and I am on Claro network from Brazil.

The problem is that I have updated my phone to 5.0 with Skydragon and the CDMA option is not available to be checked.

Do you think there is any way of doing this procedure without having to go back to KitKat?

thank you very much, my savior! =P
[Verizon HTC One (M8)] xrodx:
You must put the phone on cdma mode for the command ##3424#, i recommend you an official rom to do this.

Or u can try a custom rom with this option.

Works with the lollipop RUU

Regards!!
[Verizon HTC One (M8)] xrodx:
Solamente lo descargas del market, lo ejecutas y pones los comandos dependiendo si tu teléfono esta s-on o s-off, por defecto viene s-on.

Saludos y suerte
[Verizon HTC One (M8)] aletenista:
Si, ya pude era muy facil.....

Esto afecta en alguna cosa en el funcionamiento "normal" ya sea menos señal o algo ?
[Verizon HTC One (M8)] xrodx:
No nada, funciona todo igual, lo que hace es desbloquear el comando ##3424# para poder conectar el teléfono al pc y realizar el resto del procedimiento.

Saludos
[Verizon HTC One (M8)] aletenista:
Ah ya ok, gracias por todo, hoy probare si quedo habilitado el 4g en mi htc one m8, y probare en otro que no lo desbloquie...

Saludos y gracias excelente post
[Verizon HTC One (M8)] MikkelJakobsen:
Can't find the port

How do I see which port my phone is connected to?
[Verizon HTC One (M8)] jskup:
If the question is which LTE band you are connected to, I use the LTE Discovery app from the Google Play store. It's worked like a charm for me.
[Verizon HTC One (M8)] MikkelJakobsen:
The question was related to the part of the guide where you have to enter which port is using the phone:

"10. Open device manager, go to PORTS and check what port are using your phone"

- and I can't find out which port is using my phone when i go to device manager.

[IMG="device manager"]http://i59.tinypic.com/70ygd0.png[/IMG]
[Verizon HTC One (M8)] xrodx:
U have to install the correct drivers, the phone must be detected as "htc diagnostic device" or something like that.

Regards!!
[Verizon HTC One (M8)] jskup:
Agreed. If you don't have the phone in the correct mode and have the correct drivers installed, that's going to be the hiccup. Once it is all set up, the port becomes fairly obvious within the tool
[Verizon HTC One (M8)] MikkelJakobsen:
IT WORKS!

Thanks. I believe I now made it all the way through your guide and I managed to change the NV values! The problem was that I for some reason couldn't get into to diag mode using the ##3424# code (got the error message "Connection problem or invalid MMI code"). However, I found out I could use ADB to enable the diag port with following commands:

adb shell

su

setprop sys.usb.diag.config diagon

After changing the NV values I rebooted several times, but still no LTE. Then I just tried the ##3424# code again, got the same error code as usual but then suddenly the LTE sign appeared in the status bar.

[IMG="LTE!!"]http://i61.tinypic.com/2i0zqfl.png[/IMG]

This is truly amazing! It's been 1 year since I bought my Verizon M8 in Oregon and ever since I've been trying to figure out how to get LTE here in Denmark. Finally it happend!

THANK YOU VERY MUCH!! :D:good:
[Verizon HTC One (M8)] wailer247:
i'm trying to obtain 4g on my vzw htc one m7. I can see both ports with the drivers installed on my device manager. I've got an htc diagnostic port and an htc diag 9k port. I can connect to the 9k port, and read and write those nv items. I can still connect to the diag port, but when I go to read or write, I get "DIAG ERROR RECEIVED: Invalid Command Error Response". Any help would be appreciated.
[Verizon HTC One (M8)] hardboiledjuice:
Hi all, I've got a VZW M8 on Vivo in Brazil, and I'd like to try this to access their LTE band. However, I will return to the US eventually, and I'd like to be able to have the device work on VZW's LTE too. Is this process irreversible?
[Verizon HTC One (M8)] BobbySteel:
It works fine if you just edit 6828 and 6829. I swap back and forth every couple weeks.
[Verizon HTC One (M8)] Sv22:
Hi, I have red all the discussion.

I Have a problem! I have a converted to international HTC One m8 T-mobile. I know that this is the Verizon section, but on the T-mobile section I haven't found info about.

If I follow this guide the succes il near 90%. I don't know why when I reboot my phone all parameter (6828/9) comes back to original. Also if I click write it told me "writed" but if I press read QXDM show me original parameters. What can I do? I'm from Italy and the T-mobile LTE frequence are unusable.

Thank's
[Verizon HTC One (M8)] cincon:
did u root your phone and your phone s-off?
[Verizon HTC One (M8)] Sv22:
Yes, s-off, root and s-cid
[Verizon HTC One (M8)] izmaelzx:
[MENTION=2496722]xrodx[/MENTION] should these steps work in an verizon m7, i have one, stock, in our same country but i can't get any mobile data connection (call and wi fi are working ok)

thanks in advance

saludos!
[Verizon HTC One (M8)] TidusWulf:
I'm using T-mobile as my carrier (but VZW M8). I followed instructions and set it to 6154 (or whatever the other guy said) and it seemed to hold, but I don't see any improvement. LTE discovery still reports LTE band 4 as the only one it'll connect with. I'll just suffer with HSPA(+) I guess :P
[Verizon HTC One (M8)] HC4Life:
Hi,

I want to know if this guide works for HTC One M9. In my case i bought on eBay a Verizon HTC One M9 with sim unlocked to work on any GSM carriers worlwide, i'm form Portugal and my phone is S-OFF but i can't get LTE band only UMTS (3G). I can make and receive calls and send sms but no LTE...any help?
[Verizon HTC One (M8)] supun_sameera:
Hi All, im having the same issue, when i change the 6828 or 6829 parameters using QXDM and write it, it says writing but after that when i hit read it shows the default values which i tried to change. tried couple of times. my M8 is having OTA android 5.0.1 unlocked and rooted, s-on. do i need a custom kernel? or is it must s-off? any help will be greatly appreciated.
[Verizon HTC One (M8)] tatathing:
[MENTION=2496722]xrodx[/MENTION] Compadre, sabe de alguna tienda que haga el rooteo en Concepción o Stgo, instalación de cyanogen (pa evitar echarme el celu en el proceso y poder configurar APN de Entel, ya que desde que lo compré no he podido) y hacer la modificación para liberar la Banda Lte?

Soy de Conce y acá no se si habrá alguien que pueda hacerlo.

Gracias, saludos.

[MENTION=2496722]xrodx[/MENTION] do tou know of some store were they can do the rooting, cyanogen install and lte band modification on my M7 stock verizon phone?

Thanks in advance.

Best regards
[Verizon HTC One (M8)] JellyKitkatLoli:
I am wondering if I should do this :/

Edit:Just a note for myself in the future, also RUU/FUU probably reverts this but whatever.

6828 ; 4104

6829 ; 4104

2954 ; 4294967295

1877 ; 562950035735431

Extra edit : It didn't work + I believe it screwed up my GSM connections :( I might have to run an RUU now.
[Verizon HTC One (M8)] pillopoulos:
What about if you are in Greece where there's no CDMA signal and even if I put the phone to CDMA mode,it can't get into the menu when doing in the dialer ##3282#???

Στάλθηκε από το 831C μου χρησιμοποιώντας Tapatalk
[Verizon HTC One (M8)] JellyKitkatLoli:
Lol does anyone have the stock ones, I don't believe mine are correct, I think I got confused.

Here's what I've edited besides the LTE values and need help with.

2954

1877

Anyone who didn't modify those could help me out?

Edit : I just require 1877 now thanks.

Also could anyone provide me the correct value just for bands 3 and 7?

So far I've tried 68,131518,524484 and the one that's in the thread for LTE, nothing works.

If anyone got a clue, please let me know, also my values were sticking after reboot, I didn't need to do the whole ##3424# non-sense.

Really sucks :( .
[Verizon HTC One (M8)] denkoshka:
Hello guys, is there a way to do the same on the Windows Phone (HTC M8 WP Verizon HW v.4) ?

I'm sure: it's possible.

I've read some specs and I really think, that AT&T and Verizon versions are the same from the inside.
[Verizon HTC One (M8)] halfevildruid:
Hey I'll be doing a stock shortly if you need still. Unless my search to trade my Android M8 for a Windows m8 goes through before I unlock them
[Verizon HTC One (M8)] elpicard:
I need to unlock the LTE band 4 in order to use it in CLARO ARG. Is this the only way? I changed my firmare and rom from EU unbranded to ATT because ATT uses band 4 but nothing happened.

Is not the same flash a RUU from a carrier that does use the target band?

Im S-off.
[Verizon HTC One (M8)] elpicard:
Hi,

I started the procedure but I have a few questions first.

I have a GSM M8. the CDMA step doesnt work for me. nothing happend in the phone.

then this happend and I would like to be sure.

In QXMD the phone appear as unactive. is this ok?

nevertheless, I can see values afterwards, but only on line. Is this also proper?
[Verizon HTC One (M8)] elpicard:
Same problem here! did you solve it?
[Verizon HTC One (M8)] g510:
Hello

I have HTC One M8 Unlocked International version, Rooted and flashed with ViperRom

I will explain my problem step by step so you can understand my problem.

I can make phone calls, Edge and 4G/LTE working, when I change to 3G I get no signal at all.

When searching for Network operators (while on 3G) it can find only carrier form the neighboring country that operate 3G probably at frequency that my phone support but can not detect local providers.

Edge and 4G/LTE are OK

(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 1.25.214500021.06G
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main:
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: xxxxxxxxxxxx
(bootloader) imei: xxxxxxxxxxxxxxx
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul_ca
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B12000
(bootloader) cidnum: 11111111
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 3aa067db
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0

I am trying to change values at +1877 over "RF_NV_Manager" from 82314112 to 2307813334319039360 but it seems that phone is not receiving the changes.

Please tell me if anyone managed to do these changes.

Here are the steps I did but 3G bands do not start.

h t t p://i62.tinypic.com/8vx0qs.jpg

h t t p://i58.tinypic.com/2afy5av.jpg

h t t p://i58.tinypic.com/903voo.jpg
[Verizon HTC One (M8)] elpicard:
Your main version is missing. Did you already flash the ROM again?

Did you try with other ROM?

I think is radio version related. With GSM phones we can't changes the NV values.
[Verizon HTC One (M8)] g510:
Oh sorry

More info;

Unlocked
M8_UL_CA PVT SHIP S-OFF
CID-11111111
HBOT-3.19.0.0000
RADIO-1.25.214500021.06G
OpenDSP-v48.2.2-00564-m8974_F0.1211
OS-
eMMC-boot 2048MB
Jan 15 2015,22:51:08.0

Current rom ViperOneM8_4.6.1

I did not try to change NV values with other roms but tested many roms and still no 3G with my local carrier.

More details

Kernel version

3.4.0-g6af28ec

and@ABM101 #1

SMP PREEMPT

Baseband version

1.25.214500021.06G_20.68.4196t.01_F

Build number

1.40.401.8 CL549783 release-keys
[Verizon HTC One (M8)] lifebringer123:
Able to access diagnostic mode in Cyanogen Mod?

Hi guys, so I’ve got a related, but partially tangent question.

My device shows up properly in “adb devices,” but the QPST Configuration screen shows “No Phone,” no matter what I’ve tried.

But I can’t get the phone into HTC Diagnostic mode. The code *#*#3424#*#* doesn’t work, nor does ##3424## or other codes I’ve tried. No matter what my selection is in the “preferred network type” is (from the*#*#4636#*#* screen), that 3424 code doesn’t open the diagnostic screen.

Of course, I’m running CyanogenMod 12.1, and I think this is the reason why: the code is trying to execute the HTC Diagnostic Mode application, which doesn’t exist.

So my question(s):

Do I need to be on a stock ROM to run that code and have QPST successfully connect to edit these NV codes?

If so, will editing these NV codes reset once I install another custom ROM? I’m not an expert on exactly what locations/partitions all these settings are saved in, but I know installing a custom ROM doesn’t overwrite everything… (as I had to install the original RUU to fix my radios partition this year!).

If not, is there a way to install the HTC Diagnostic Mode or otherwise put the phone into such a diagnostic mode in order to connect with QPST?

Thanks for any help. I’m in Colombia and I’ve got data (old 3G, I think), but it’s slow and I’d like to be able to edit these codes successfully for other countries I visit.
[Verizon HTC One (M8)] elpicard:
That doesn't work for GSM M8.
[Verizon HTC One (M8)] lifebringer123:
Anyone? Crickets? Or anyone know the best thread to post this question into?

---------- Post added at 07:22 PM ---------- Previous post was at 07:19 PM ----------

(I'm assuming your post isn't in response to mine - and I'm biting my tongue hard to avoid insulting you, but...)

I was under the impression that every M8 has the same physical radios and capabilities. My Verizon M8 certainly can "see" networks on a lot of different bands here...
[Verizon HTC One (M8)] elpicard:
Try to find anyone with a GSM M8 that could have changed the frequency and then tell me.....

The code that allows you to change the values with Qualcomm soft works on CDMA M8 only.

If I'm wrong, I will invite a beer. (After we both changes our frequencies [emoji6] )
[Verizon HTC One (M8)] cloud123:
network signal lost

hello guys i got in some trouble

i used the settings, and reboted the phone, phone took signal (not 4g the hspda+) than i've istal app named "network" from market, and i set it up for lte/hsdpa/3g/2g and the phone lost signal completly. i try original ruu to get back to stock but no luck. now it doesent take other settings from the network menu, like global or 3gpp its stuck in lte with no signal at all.

any fix for it?

thanks
[Verizon HTC One (M8)] jkpair:
Is there any benefit to doing this if I am in the US using Verizon networks?

edit: nevermind.... Helps if I went back and read more. The answer is no benefit.
[Verizon HTC One (M8)] d3310n:
I'm using a Verizon m8 fully converted to gpe and I'm using T-Mobile sim in the US, but even after I changed 6828 and 6829 to 6154 value, I still am only getting band 4. Also having major issues dropping connection, especially in the car.
[Verizon HTC One (M8)] Arnold.1441:
Hi! I plan on doing this procedure now to unlock Band 3. Please explain something to me. What are the "Stock GSM values"? I noticed that [MENTION=2604616]BobbySteel[/MENTION] posted on the original thread that he managed to unlock usage of HSPA+ which is also very important to me as I don't always get LTE where I am and HSPA+ would be a whole lot better than older HSPA. Will I get that benefit just by editing +6828 & +6829? or must I do something else to get the HSPA+ unlocked? Is that the stuff you call Stock GSM values? TIA!
[Verizon HTC One (M8)] balag59:
Hi!how did you convert your vzw phone into a gpe version?I thought that it was not possible for CDMA phones to be converted into a GPE device?Or are you talking about a custom GPE rom?Also how good is your network on t-mobile because im also on t-mobile?Thanks!
[Verizon HTC One (M8)] d3310n:
I am using digital highs rom and his vzw firmware. It works ok, drops signal sometimes. I don't get all the lte bands even though I supposedly unlocked them
[Verizon HTC One (M8)] freshkid87:
what are the benefits of this? if i am using att on cdma vzw m8
[Verizon HTC One (M8)] Arnold.1441:
Followed all the steps and succeeded in getting "G" as a GSM option instead of only H. Still no H+ as [MENTION=2604616]BobbySteel[/MENTION] claims he achieved at least no faster than previously (the band is there; VZW just throttled it in the firmware to old H speeds AFAIK) and no Band 3 LTE even though my wife's OPO does get. Has anyone on this thread had success with this other than the OP? I am using stock rooted Stagefright patched update. Unlocked BL
[Verizon HTC One (M8)] d3310n:
has anyone on tmobile succesfully unlocked band 2 or 12? ive followed the guide but either its bust or my settings didnt "stick". im still only getting band 4