yashsingh1/xdaforums huggingface dataset:
[Sony Cross-Device General] swapavi:
I'm on an at&t galaxy note 3 and I've successfully edited the nv values 6828 and 6829 to give me band 12 lte for the tmobile network.

However I can't actually enable or use the band...

Using the band configuration in my phone *#4363# band 12 isn't on my list of available lte bands. But when I plug my phone into dfs it shows that I have band 12...

My settings stick after reboot BTW.

I'm on 4.4.2 rooted kit Kat, using a tmobile rom. Stock at&t kernel (due to locked bootloader) with permissive mode enabled

Has anyone successfully enabled extra bands (and used them) on a samsung device?
[Sony Cross-Device General] palmbeach05:
Are you trying to use an AT&T device on T Mobile? T Mobile does not make ROMs, they provide service. Are you running stock or CM based?
[Sony Cross-Device General] swapavi:
Yes.. I'm using an at&t note 3 on tmobile service.

I am running a kind of stock tmobile rom though (meaning I an using stock tmobile firmware so I can use wifi calling)

I'm using hyper drive rom which is based on stock but with a bunch of tweaks and mods
[Sony Cross-Device General] palmbeach05:
So its a bootstrap like setup if i'm reading that correctly?
[Sony Cross-Device General] swapavi:
I'm not familiar with bootstrap... all I did was take a rom from the tmobile development section and flashed it to my at&t phone so I could use tmobile wifi calling
[Sony Cross-Device General] Product F(RED):
The Note 3 is physically not capable of using Band 12. That's a fact. The antenna is simply not in there.
[Sony Cross-Device General] swapavi:
Well damn...

How do I find out what bands a phone is capable of having?

Just check out the list of bands for the phone in general in a site like phonearena for example?
[Sony Cross-Device General] jdmst77:
I ran into trouble when I followed the vague instructions in the OP. I should have figured that it may cause an issue:

This caused me to lose all mobile voice and data network connections after a few reboots (not immediately after the first or second reboot, which was strange).

I reverted 1877 back to the factory value and the issue subsided. Did you have an issue as well? What decimal value did you use in 1877? If possible, I'd like to see what GSM & WCDMA bands you added through decimal number in the calculator
[Sony Cross-Device General] madrascafe:
Hi can you please tell me where how i can get to the Verizon LG G3 hidden menu?
[Sony Cross-Device General] Subhanzg:
Guys I've Motorola Moto E 2015 LTE XT1527 and I wish to get 3G band 2100 and 4G LTE band 1800 on it. Both of these bands are there in XT1524 which is international variant of the same phone.

I've this this whole process quite thoroughly by trying multiple nv values using QXDM and NV Manager but things are not going as planned.

I'm also unable to restore my initially backed up qcn using QPST Software Download as it gives an error "Received an invalid command from the phone."

I somehow managed to get NV Values same as before (at least according to QPST screenshot below) but my phone keeps on losing signals after every few seconds.

Let alone unlocking additional bands, I'm now suffering to get old bands back.

Does anyone have XT1524 qcn file? i'd like to try its values on xt1527.

It'll be great if someone could help me out.
[Sony Cross-Device General] Subhanzg:
Used these values as well from past post by fffft
[Sony Cross-Device General] anno2070:
I have a Xperia Z2 (D6502). They say that Z2 just supports GSM and WCDMA. Can I unlock LTE bands to use?

Sorry for my bad English.
[Sony Cross-Device General] Subhanzg:
Successfully managed to get old modem back by flashing stock firmware files. Handset is back to normal as new.

Now to get 3G and LTE bands on it, still no luck.

Tried mztool method as well. But signals keep on fluctuating as soon as I reboot the phone the first time, never gets back to normal. (I flash stock files again to bring it back to normal to do more testing)
[Sony Cross-Device General] palmbeach05:
Idk, can you follow blacksoulxxx's advice and stop asking the "does this work on my device" question and just try it out? This mod has been covered pretty extensively, its now a matter of users just doing it. And if that means grabbing up the original modem firmware as a fail safe or writing down original values before making changes, then do it

---------- Post added at 01:38 PM ---------- Previous post was at 01:33 PM ----------

Got your message a few mins ago, i'm about to start a shift at work, but i can give some basic pointers without going into things and researching.

1) what carrier are you on and what frequencies do they support? This is going to be a big one in figuring out what bands you can get supported

2) what frequencies does the device support?

3) what frequencies does the chip support?

Thats where you should begin. I'll look into some more things later and look at your device's threads later on when i get off work
[Sony Cross-Device General] nextmouk:
deleted
[Sony Cross-Device General] olokos:
Try other adb drivers, for example from the 1 click adb and fastboot that enables both system wide. That worked for me when other drivers didn't ;p
[Sony Cross-Device General] olokos:
Try google play, why don't you root it anyway? :confused:
[Sony Cross-Device General] Subhanzg:
Thank you for your time! I am working on Motorola Moto E LTE XT1527 which supports following bands

Where as I need LTE band 3(1800) and HSDPA 2100 as well to work in my region.

Chip this handset use is Qualcomm Snapdragon 410 which comes in both variants XT1527 (which i have) and XT1524 (which support bands I need). So I'm assuming is do-able.

I'm currently in Pakistan (click here to see carrier supported bands list) and here 900/1800 MHz GSM 2G | 2100 MHz W-CDMA (UMTS) 3G | 1800 MHz LTE 4G covers pretty much every carrier.

What I have done so far:

I have played with 3G bands with QPST and QXDM/NV Manager directly as well without any success. (Used NV Calculator, mztool & XDA posts references to get NV values.

Whenever I play with NV values of 3G bands (even using mztool trick) signals start dropping after every few seconds and never gets stable.

So I gave up (till further assistance from xda) and moved on to LTE bands. played with values of 6828 and 6829 with many different values but no joy.

What I need to achieve:

Unlock LTE band 3(1800) and HSDPA 2100.

My steps of using QXDM have been same as mentioned by everyone Read -Write '0' - Read - Write value I have tried changing first line and both lines as well of NV 6828 and 6829.
[Sony Cross-Device General] jdmst77:
Does anyone have the default T-mobile NV values for the Z1s/C6916? When I try to go to 441, 946, and 2954 in the NV Browser (in QXDM), and Read, a message displays saying "NV Status Error Received: Item Inactive" with zero input and values for each.
[Sony Cross-Device General] palmbeach05:
RV NV Manager and mzTool are what you should use, though some ppl prefer the program you use to read/write. That should give you the value to enter into NV Item 1877. For LTE band, you will be editing NV Item 6828. Use LTE Band Calculator (see play store) to calculate the value needed in 6828.
[Sony Cross-Device General] Subhanzg:
Learned that hard way. But in the end when I add even a single band using mztool and put the value in nv 1877, it starts dropping signal time to time. Literally have no idea what to do.

For LTE Band Calculator. It's giving me same nv values as I used before taken from xda posts and nv Calculator. :(
[Sony Cross-Device General] Murshad007:
Can you please tell the LTE Band Calculator developer/ Company name?
[Sony Cross-Device General] palmbeach05:
Rm studio is the dev of the calc
[Sony Cross-Device General] Subhanzg:
Hahah laziness at its peak!
[Sony Cross-Device General] Murshad007:
Only 1000 downloads for the app. That's why confirmed...
[Sony Cross-Device General] palmbeach05:
1000+ downloads. Next interval is either 5000 or 10,000. But lets be honest, how many everyday users do stuff like this?
[Sony Cross-Device General] Subhanzg:
Broo! enough discussion on how many crazy people are out there. Let's get back to helping me out :(
[Sony Cross-Device General] Murshad007:
02508 EDGE Feature Support = 0x0000

I am unable to change this value on my G Flex F340K.

I can edit and write 0x0001 successfully. but when I read its again 0x0000

Any solution?

I can edit all other settings... But I am not rooted..

Some Usefull Settings for 3G and HSDPA and HSUPA

03649	WCDMA RRC Version	4 (Rel 8)	or 8 (Rel 99) Slow (3 = Rel 7, 2 = Rel 6, 1= Rel 5)

04118	HSDPA Category	24	or (10, 12, 14 According to devcie can be changed)

04210	HSUPA Category	6	or 5 (Depending on Device)

Press the Thanx Button
[Sony Cross-Device General] Murshad007:
*#*#8778#*#* this command is doing nothing on my D801 Stock Lollipop..
[Sony Cross-Device General] palmbeach05:
Did you search for what this key sequence does or did you immediately say this step failed?
[Sony Cross-Device General] Murshad007:
After searching I asked for help. With 3845#*801# I go to port settings and then Select Diag port for USB. But nothing happens
[Sony Cross-Device General] palmbeach05:
The fix to your problem is in post #1. Read everything and you'll see you do not meet all the prerequisites of being able to do this. Once you meet all the prerequisites, then come back and try this again.

---------- Post added at 03:31 AM ---------- Previous post was at 03:30 AM ----------

I haven't forgotten about this, I've been handling some things outside of the dev community.
[Sony Cross-Device General] Subhanzg:
Very considerate of you :) Thank you.
[Sony Cross-Device General] palmbeach05:
Eh, thats life for you. You start a project, then the personal or work life interferes.
[Sony Cross-Device General] Hnk1:
Hello Mate

I had been tinkering with QXDM alot lately (over 36 hours in last two days) and everything seems to go nicely (all values seem to stick 00441,946,1877,2954) but my value 6828 and 6829 doesn't seem. After I restart my device, it revert backs to 4104 (Verizon baseband). I was just trying to add band 3 with it (4108 and even tried 4096) but that doesnot seem to work for me. I even downgraded my modem with not much luck, however, I added band 3 successfully in 1877 value but I know to make it fully work, i must change the 6828 and 6829 values.

I can downgrade till kitkat and i tried going back to lollipop which resulted in strange lines and phone looked hard brick but luckily i could flash kdz.

Now I am at my nerve's end, not sure what I am doing wrong.

I even got hold of hidden menus but I could only select or deselect band 4 and 7 while band 3 and 13 are visible but I can not select or deselect . Tried thrice with different combinations, doesnot work.

I flashed three roms based on lollipop stock and even tried latest CM12.1(where I can not get my phone into diagnostic mode)

I know verizon has something to do with it.

Any suggestions ?

Update I got hold of new version of QxDM 3.14 from some Chinese website. Will try with that now.

didnot help

In cyanogenmod 12.1 I can not get into diagnostic mode. Any idea ?
[Sony Cross-Device General] Murshad007:
Already Have it from september 8th. Dont knew its latest..
[Sony Cross-Device General] Hnk1:
I tried both versions. Not much of a difference actually and you need to crack it as well.

I will stick with the previous version if I were you!
[Sony Cross-Device General] Sandybond:
I have HTC 816 virgin mobile, few months back I had added GSM bands using DIAG mode and DFS tools.

After reboot I am unable to go to the DIAG mode with my old MSL code. the radio keeps on and off and when its stable diag mode takes msl code and reboots, but after reboot no DIAG, Now I am on S-off, so if know where the bands information is stored, i can flash that accordingly.

Any expert advice is really appreciated.
[Sony Cross-Device General] Sacerdot:
nevermind
[Sony Cross-Device General] shoiebarshad:
Hi All,

i have T-Mobile S5 (g900-t) with phonix ROM and using it in Saudi Arabia. but i can only use GSM network here. so this thread is exactly i need. before trying out i just want to ask one thing that the frequency band used in US are TDD (Time Division Multiplexing) and here they are FDD. so enabling the required band will overcome this problem as well?

for the guys struggling with the phone codes, use Shortcut Master APP. it requires root access but it will provide you with all the secret codes and hidden menus

https://play.google.com/store/apps/details?id=org.vndnguyen.shortcutmaster.lite&hl=en
[Sony Cross-Device General] Murshad007:
Check the band's present in your phone and also check your carrier's.. If they match. Then they are software disabled you can enabled them through hidden settings.
[Sony Cross-Device General] shoiebarshad:
i did that now my phone can search on all networks avaialbe on 2100 band but it is not getting registered. it shows RRC IDLE: band 1 and in MM information it says reject cause 15.
[Sony Cross-Device General] Subhanzg:
Happened to see what's wrong?
[Sony Cross-Device General] JeanLuX:
Xiaomi Mi4C

Hi

Have you the diag drivers for the new Xiaomi Mi4C please(3Gb/32 GB variant) ? Or can you make one tutorial for this ?

For info, i can use the Mi Note drivers for this, but QPST don't see the COM ports.

Thanks you a lot !
[Sony Cross-Device General] GearshiftJB:
Hey, would this work for Sony Z5?
[Sony Cross-Device General] Bert02:
has anyone tried to enable band 8 or 28 on an s4?
[Sony Cross-Device General] aneeshmbabu:
How to get spc code for verizon droid turbo ?? I tried with 000000 to all combination but no success .. Pls help me how to get
[Sony Cross-Device General] shahper1:
Hi,

I need some help, I tried this on my LG G3 D852 (Canadian Ver.) I am from UAE so 2100MHz for 3G UMTS/HSPA, GSM 900MHz and LTE-3 are required.

I can successfully change band with MZ-Tool but phone won't connect to 3G or 4G, stays on EDGE all the time. When I selected all the GSM/WCDMA bands as stated in this thread then phone kept searching for network forever then i had to make changes in bands again to get it work.

What should I do.....? Running CloudyG3 Rom for D852 (rooted).
[Sony Cross-Device General] ShiAili:
In theory, you should be able to write the various NV values, since the Z5 uses Qualcomm chips - but what band could you possibly need that isn't on the Z5? The only thing I could think of would be AWS for HSPA.
[Sony Cross-Device General] shahper1:
Any Help...? I managed to make it work with 4G, when I was on cloudy then was unable to activate band-3, msg was appearing "Fail" but "Success" after installing Roger ROM. "G" some time flashes on network status when I make changes in hidden menu for network selections...I thing some thing is related to ROM as well to get it fully work.....right now again on CM12..

Any advise......???????
[Sony Cross-Device General] Bharadwaz:
Is this method works honor 4x chel-l04 I mean it is qulacomm snapdragon 410 MSM8916 processor thanks in advance

Sent from Che1-L04 using XDA
[Sony Cross-Device General] bigrammy:
Hi bro,

Did you or anyone ever find a fix for this :confused:

I have a xperia ZL C6502 and I can write all LTE values to the phone and they stick but like you the phone searches finds a signal but then drops the signal it does this a few times then the phone reboots itself :eek:

When I select WCDMA_Preffered everything is fine :)
[Sony Cross-Device General] coglyostro:
I think that, doesn't matter what you do, will not work. We have been scratching the surface (software) and to work we need to go deeper. IMHO at least for the ZL it is just the software taking place of the hardware trying to force to work but neither have the right parameters to work properly.

I've read somewhere that you need to write the command in the chipset on the work board and this is the only way, so it's better change the phone for one that cover all countries and you are done.

Just my two cents.

Cheers

Enviado de meu C6506 usando Tapatalk
[Sony Cross-Device General] bigrammy:
Thanks for the reply :good:

If I by some miracle I discover how to get it working I will be sure to let you know :fingers-crossed:
[Sony Cross-Device General] coglyostro:
Ok then! Good luck! Hope you find something.

If I find anything new I will disclose here as well.

Cheers and again good luck!

Enviado de meu C6506 usando Tapatalk
[Sony Cross-Device General] doc_v15:
Did anyone ever successful unlocking on HTC One M8??
[Sony Cross-Device General] toroloco73:
does it work on motorola droid turbo/moto maxx to unlock band 20 LTE ?
[Sony Cross-Device General] kansasboy001:
Has anyone been able to successfully unlock band 12 on the xperia z2 or z3? I would think the hardware is there since they both have bands 13 and 17, and there is a z3 model with band 12 support.
[Sony Cross-Device General] Dragon31337:
I'm on Verizon and considering buying Z5... I wish I knew if it works. otherwise I have to stick to Nexus 6P =(
[Sony Cross-Device General] kansasboy001:
It should work as it has verizons lte bands, but you won't have any coverage where there isn't lte and you will only be able to make calls and text on volte. Because the z5 is missing the CDMA radio. You will also not be able to roam as the phone does not have the CDMA bands for sprint.
[Sony Cross-Device General] Dragon31337:
Well, that is the question. Does it support it but has these bands disabled or it does not support these bands at all. And Z5 does not support Band13-700MHz by default.

Without potential CDMA support it does not make sense to buy Z5 at all.
[Sony Cross-Device General] kansasboy001:
Most likely you could enabled band 13 and it has bands 12 and 17 too so the hardware should be there. But CDMA will not work the z5 most likely doesn't have the hardware, and if it did it would require a modified radio to work. Your only option for Verizon is the z3v
[Sony Cross-Device General] talvigi:
Hay, Dev, this [MENTION=5726421]talvigi[/MENTION] back with some question in mind in this thread,

because i have googled a lot and searched the forum (xda specifically) and could not resolve the problem i'm facing with my AT&T Galaxy Note 3 N900A, so i thought this might be the right place to put my question for a reasonable answer.

As i have mentioned my device above and i have seen that my phone has some LTE bands enabled by default, and i also has the band i am looking for the Band 3 (1800 MHZ or something like that) but it still doesn't work on 1800 LTE band like Warid is providing in Pakistan (i have created a thread in this regard but no one is responding even a single view on that here:

I have also tried to post my problem on here http://xdaforums.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059

But unfortunately that thread has also ended at#615[/URL] (http://xdaforums.com/showpost.php?p=56620543&postcount=615) back in November, 2014 and no body is there to help.

AS FAR AS the above referred GUIDE talks about a ROM and kernel and it also warns specially AT&T and Verizon user so i can't dare risking my device UNTILL Otherwise i have specific guidance from you guys, because i have searched the world (till my knowledge) and could not find a ROM which would give me such access, that i would be able to do all those steps mentioned in the GUIDE and the CM doesn't have any thing specific for my AT&T Note 3 too

Any body's help is really really very much appreciated please help

What i can do is here

i can revert my device to 4.4.2 because i have all the files required for ODIN back to that ( I have done it before)

i can (i think also install safestraf)

i can root by towelroot

i can access the USB settings by *#0808# and change the settings from AP to CP and

i can change MTP + ADB to RNDIS + DM + Modem

i can access the band selector as i have shown in my post

As the [IMG="N900A LTE band select 1"]http://http://dl-1.va.us.xda-developers.com/3/5/6/3/7/7/0/attachment_2.jpg?key=PAXh2iEhLtJNVdbXv0KSWQ&ts=1449152613[/IMG] show i have selected the LTE/GSM

and as this [IMG="N900A LTE bands enabled"]http://http://xdaforums.com/attachment.php?attachmentid=3563774&stc=1&d=1449152504[/IMG] shows i have LTE band 3 (1800) which is being used by Warid LTE services

BUT i don't know what to do as for as my knowledge is concerned there is noting mentioned for LTE as it should be[IMG="Attachmet *#0011#"]http://http://xdaforums.com/attachment.php?attachmentid=3563771&stc=1&d=1449152504[/IMG]
[Sony Cross-Device General] AlpineMan:
I have done a lot of research on this topic. As far as I have read, so far, no one has been able to successfully enable and use additional LTE bands on Samsung phones.

Motorola DynaTAC 8000X using Tapatalk
[Sony Cross-Device General] pillopoulos:
Does anyone know I can enable diag mode on HTC m8 with marshmallow? I tried typing *#*#3424#*#* but it doesn't work either the commands "and shell" etc. on mobile terminal....

Στάλθηκε από το HTC One M8 μου χρησιμοποιώντας Tapatalk
[Sony Cross-Device General] xmguy:
AWS for Verzion has finally launched in my area (band 4). My Moto G LTE (2013) Natively supports that band. I can put my Verizon SIM card in and for 20 seconds it works, I have LTE Data. Then it drops off and won't let me reconnect to Verizon. I called them about it and they couldn't give me any reasons. I don't know if I need another LTE band. But if it works for 20 seconds before dropping off, should it not keep working? I don't get why it's dropping in the first place. This is stock 5.1. I've tried CM as well. Connects same when VZW sim in put in, drops in 20 seconds. Ideas?

It sees Verizon Wireless in the Available Networks too. But will not register.
[Sony Cross-Device General] g33kos:
For Moto G 2014 second generation users:

So, I spent few hours today to try unlocking 1700 and 2100 bands on my Motorola Moto G XT1068 in order to make it work on Wind mobile.

Didn't work, so I gave it another try, checking all the GSM and WCDMA bands in mzTool and I did lost my connection on any network. I gave up and put the old decimal string back and now my connection is back.
[Sony Cross-Device General] kansasboy001:
Successfully unlocked band 12 on Xperia Z3 D6603
[Sony Cross-Device General] doc_v15:
Can ANYBODY confirm that this work on HTC One M8 US Carrier (T-Mobile)???
[Sony Cross-Device General] kansasboy001:
Its worth trying, it has 700mhz hardware as band 17, but not the lower blocks. Your NV for 6828 with band 12 would be 67592

Even if it doesn't work it wont hurt anything. HTC doesn't have the universal baseband that sony does, so I wouldn't expect too much
[Sony Cross-Device General] doc_v15:
i see..thanks for the confirmation..will try it and let you guys know
[Sony Cross-Device General] ERPal:
Telcel