yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy Note II] gkong:
Here's the UMTS band frequency allocation:

I	2100	IMT	1920–1980 MHz	2110–2170 MHz

II	1900	PCS	1850–1910	MHz 1930–1990 MHz

IV	1700	AWS	1710–1755 MHz	2110–2155 MHz

As you can see on the list above, IMT band uses 1920-1980 for uplink and 2110-2170 for downlink, so band 1 uplink is actually part of the downlink for band 2 (1900 Mhz).

Band 1 IMT is NOT called UMTS 2.1/1.9 just because it's using uplink frequency in the range of 1920-1980.

Also band 4 AWS is using portion of the downlink in band 1 as you can see on the table above.

For the sake of this discussion related to the original question, 2100 MHz listed in the diag is related to band 1.
[AT&T Samsung Galaxy Note II] Tinkerer76:
This info is gold, but still a little confused about what the overlapping brings to the table.

When I set B4 1700 AWS 1710–1755 MHz 2110–2155 MHz, I can get up and down.

When I set B1 2100 IMT 1920–1980 MHz 2110–2170 MHz, it shows a Ø.

B1's uplink is shared by B2 downlink, and it's downlink is shared by B4 downlink. Does this mean they phased out B1's uplink so B2 could use it solely for downlink? Then when selecting B4, it uses 1710-1755 for uplink, and it's 2110-2155 for downlink; and that's what Product F(RED) meant about using the 1700 vs 2100 for up/down respectively; and why setting IMT can't get data by itself because it's uplink spectrum only allows for down in these refarmed areas? Do I have all that right?

I'm not sure what I should do about my band preference problem. Ideally I'd like use my AOSP rom to control whether gsm/utms/lte are active; currently the options are gsm/utms/lte, gsm/lte, and gsm/utms. As well, I'd like to be able to set to automatic utms/gsm, and be able to "prefer" B2 in refarmed areas. After using this mod, the only way I can use B2 is by setting it to only use that band, hard disabling gsm/lte in the process so that I'd have to go back to TW every time I want to change it. I could revert and disable 1700, then I'd have freedom to choose B2 UTMS or LTE from and AOSP rom.

So two questions: How can I "prefer" B2 over B1 and B4? If I can't, is there a workaround to access this service mod without using adb on AOSP?

Edit: I tried enabling LTE Automatic only. I cannot obtain voice service. So while I thought I had HD voice on B17, I guess I don't?
[AT&T Samsung Galaxy Note II] mastermindx85:
Right now I'm getting 4g without moding anything so I need to do this hack to get LTE on tmobile
[AT&T Samsung Galaxy Note II] Tinkerer76:
4G symbol indicates LTE on T-Mobile.
[AT&T Samsung Galaxy Note II] ruinkhan:
Thanks man. I did everything as stated and enabled all parameters. Restored NV text file (In OP) got this in NV-Items reader writer tool:

00001 (0x0001) - Read only item

01943 (0x0797) - Read only item

05597 (0x15DD) - Read only item

05598 (0x15DE) - Read only item

Done.

Inserted Wind mobile SIM. When I go to choose manualy networks I get Wind Away & 26280. When I click on either one of them its says "Unable to connect"

I've unlocked my phone using this method.
[AT&T Samsung Galaxy Note II] sjravi:
Yes those are read only and its fine. I think your phone is unlocked otherwise after bootup there would have been unlock code request. Is it ATT note 2? or other version?
[AT&T Samsung Galaxy Note II] TEKHD:
APN there?
[AT&T Samsung Galaxy Note II] Manni.k:
i used the same method to unlock mine too and did u changed 01877 to 80 03 E8 06? if u did,, then u might have missed a line just back up the new file and then compare with op see which line you missed or go into qxdm and click read on the lines that are supposed to be changed if its says inactive click write
[AT&T Samsung Galaxy Note II] cbqfly:
manni.k did you have to reinstall the rom? only using 3g 4g optimzer didn't work to increase the data speeds? i have slow data speeds right now. also does the phone number show up in the status for you? mine just says unknown number?

thanks and thanks to everyone who spent the time to answer my questions

---------- Post added at 06:38 PM ---------- Previous post was at 06:27 PM ----------

fixed my data speed just restored my qcn file i made with qpst as per method 1 and changed back 01877 again back to 80 03 E8 06 using nv item manager in qpst
[AT&T Samsung Galaxy Note II] ruinkhan:
Thanks for replying.

I changed the the line in NV file (Text) to 80 03 E8 06 (01877 line), then I also changed the value for 01877 in QXDM to 1158685404 and hit write. I have gone through all lines that are in this post and hit write on all of them ( I didnt click read & then write, I just clicked write and it said NV file written).

Then I restoredNV text file on my file (I did not add my IMEI in line 550).

I have a Rogers Note 2 which as sjravi said seems to be unlocked ( Inserted Fido SIM and it said Fido on lockscreen). APNs are intact.

Let me start all over again and we will see how it goes.;)
[AT&T Samsung Galaxy Note II] Manni.k:
yes the phone number shows up in the status
[AT&T Samsung Galaxy Note II] ruinkhan:
Made some improvements this time:

Restored my qcn backup. Went ahead and enabled all parameters in qxdm, but this time restored Manni.k's NV text file. Rebooted my phone now sees Wind under available networks and I can select it as well (Lockscreen says wind ). However I have no internet connection. checked APN and made sure that its active.

I think its because I have a data only plan for my Hotspot device (I'm not sure). Will go to wind store tomorrow to see if I can try another SIM. I've also re-flashed my current custom ROM (Jeddi).

Thank you very very very much folks. You all are great :o

@Manni.k

do you have a voice & data plan or just data as I have?
[AT&T Samsung Galaxy Note II] ruinkhan:
Finally got it working. Since I have data only plan (for laptops) I had to change APN settings from internet.windmobile.ca to broadband.windmobile.ca

I'be getting some nice speed results. Wohoooooo
[AT&T Samsung Galaxy Note II] saqi4you:
so its mean i have Rogers i317m and after install t889 rom i can use windmobile or tmoble ????
[AT&T Samsung Galaxy Note II] ruinkhan:
Installing T-mo rom wont allow you to use Wind Mobile or other aws networks. You need to enable AWS parameters using the tools posted in OP. Message me if you have any questions.
[AT&T Samsung Galaxy Note II] saqi4you:
explain easy method how to enable AWS ???

that method i could't get what should ii do ??
[AT&T Samsung Galaxy Note II] sharpeyedman:
Would this method also work for n7100? Internaional version of Note 2?
[AT&T Samsung Galaxy Note II] mailistman:
tekhd / sjravi, i have my t889 NV & i317 backups (text file) ready using NV back up tool from OP's link. since i feel too dumb to follow this tricky thread :confused:, can i proceed to restore t889 NV to i317 using

ONLY

NV back up tool ? without doing anything else ? i was curious about some posts saying "adding IMEI on field 550" & "enable AWS parameters on pre-restore NV", do i need to do that ? just FYI, my i317 is in bone stock state, UCALJ2. only SIM unlock been applied so far. t889 running T889UVALK8 Deodex Rooted Busybox by teshxx.

it would very helpful if OP's guide can be rewrite in idiot's way so noob like me will learn more.

thank you...
[AT&T Samsung Galaxy Note II] TEKHD:
Using QPST, yes, you can safely restore T889's .qcn backup on the I317... IMEI of your I317 will no change or be affected in anyway... Do that only... don't have to enable any AWS parameters or do anything more... just restore .qcn file...
[AT&T Samsung Galaxy Note II] sjravi:
Text file restore with nv writer will not enable aws nv's, you need qcn backup from t889.

The process itself is complicated, definatly I can improve it. Let me what you dont understand
[AT&T Samsung Galaxy Note II] JarkMackson:
Ok, here's my deal: I have an at&t note 2, restored the text file in the 1st post to my phone and now I can use it on T-mobile prepaid 3g/4g. I flashed the Jedi X7 rom for T-Mobile and its been running fine, although service is a little spotty (could be my area). I just put in an at&t sim and had no data, so my questions are:

1. Am I getting full T-mobile coverage by just restoring the text file from the 1st post?

2. Did I limit myself to just T-mobile by flashing a Rom with a modem built in?

3. If I did limit myself, would flashing an at&t modem and then re-restoring the text file allow me in both t-mobile and at&t?

Sorry for all the questions but I just want to make sure I don't do any damage.
[AT&T Samsung Galaxy Note II] ruinkhan:
Is there any way that Samsung can detect this mod and void your warranty? Just curious...
[AT&T Samsung Galaxy Note II] mailistman:
hello guys...

happy new year 2013 !!! hope there will be more successful flashing & mods in the upcoming year :victory:

back to reality... assuming we already have QPST installed, put the phone in Qualcomm USB in RNDIS+DM+MODEM, then following this tutorial on the web to backup & restore QCN :

back up (step 6 - 23) : http://montecarlophone.co.uk/orange-monte-carlo/unlock-for-free/install-qpst-create-backup-qcn-file/

restore (step 9 - 19) : http://montecarlophone.co.uk/orange-monte-carlo/unlock-for-free/run-unlocker-restore-qcn-file/

tekhd/sjravi, can you please verify those step to back up and restore is correct ?

i back mine up and i get qcn t889 file with size 170 KB & 1317 file size 151 KB. i haven't restored yet.

thank you,
[AT&T Samsung Galaxy Note II] ruinkhan:
This is exactly what I did, my backup file was 258kb. I even restored my qcn backup and started over again. No issues.
[AT&T Samsung Galaxy Note II] Product F(RED):
Yes, you're correct about Band 4 (AWS) being two bands (1700 and 2100 MHz). It's different from just the 2100 MHz band. Having either 1700 or 2100 MHz separate is useless. When you choose 2100 MHz only, you're only allowing the phone to download data, which is useless, because to run a speed test (or do anything really), the phone has to ping a server on the outside. It's like showing up at someone's front door and not ringing the doorbell or knocking. Just standing there, hoping someone will open the door. And if and when they do, you can't speak. AWS is efficient; the whole "50% more bandwidth"/having crazy HSPA+ speeds (42 Mbps limit vs 21 Mbps limit on other carriers) is because they're offloading the work onto two different frequencies. This is known as DC-HSPA+ (dual-carrier HSPA+) and has a 21 x 2 = 42 Mbps maximum download speed.

According to Wikipedia:

HD Voice only works across two T-Mobile devices that support it (not sure about cross-carrier compatibility but I'm sure it would work if the other carriers have it turned on).
[AT&T Samsung Galaxy Note II] Tinkerer76:
From T-Mobile support pages: HD Voice works on

Samsung Galaxy S 3

Samsung Galaxy S 4

Samsung Galaxy Note II

HTC One S

Nokia Astound

Nokia Lumia 521

Apple iPhone 5 - 16GB

Apple iPhone 5 - 32GB

Apple iPhone 5 - 64GB

Blackberry Q10 (though an earlier article said Z10 as well)

In the comments a user reported HTC One also has it

Does HD Voice only work on UTMS? Edit: I tested. Appears this is indeed the case.
[AT&T Samsung Galaxy Note II] New Optimus:
Ok the script, when used with script manager, from the play store, will turn on diag mode on the phone, its like doing the dialer menu but since the aosp roms do not have dialer menu this works instead.

What you would need to do is down load the script put it on sd card and open it with script manager, when the script runs dm mode is on.

Now I have a few questions reading all these posts I wonder if some terms are getting lost in translation.

I dont have the note 2. I do have the att galaxy s3. When I open the *#2263# menu I see at the top

Automatic * ( the * denotes its chosen)

WCDMA Band Preference

GSM Band Preference

LTE Band Preference.

Now since the LTE is already enabled for Tmo, LTE BAND 4 I wont go into that menu choice.

So going into WCDMA you see

WCDMA 850

WCDMA900

WCDMA 1700

WCDMA1900

WCDMA IMT2000

WCDMA ALL

So if you select 1700

That puts you on the tmo AWS frequencies.

When you hit menu back you will then see WCDMA 1700 *

Hit Menu back again and WCDMA Band Preference *

Here is the thing though, I have tested this, I live where 1900 is refarmed but the tower is quite a ways away from me the signal is practically non existent. I leave it on automatic and it connects to the 1700 unless I drive to where the 1900 is strong.

It will pick the strongest signal.
[AT&T Samsung Galaxy Note II] Tinkerer76:
Can you link a thread for this scripting operation? I searched but everything I found needed a computer. Is it using a Terminal Emulator?

Ah that makes sense. It seems B4 is slightly stronger at -89 to -91 dBm while B2 is -93 to -97 dBm

---------- Post added at 03:02 PM ---------- Previous post was at 02:49 PM ----------

My conclusion is that because my LTE and B2 speeds are basically the same, there is no reason to use LTE. Because B4 signal strength is higher than B2, but B2 speeds are exceedingly faster than B4, I should solely use B4. I will also have HD voice over this connection. When traveling, I can use the script (whenever I figure that out) to enable everything.
[AT&T Samsung Galaxy Note II] New Optimus:
You should not be changing anything leave it on automatic and it will pick up the best signal.

Also we are not talking about LTE if you were picking up tmo lte that is NOT HSPA at this time lte is not as good because its in its infancy and most markets they dont even have it officially rolled out.

If your getting the LTE but want aws hspa you can just go into settings mobile menu and set it to wdcma preferred. or any setting that does not have LTE in it.

ok I will leave this here and then find the link to the script
[AT&T Samsung Galaxy Note II] mastermindx85:
I dont thibk so I seen people post here with an lte icon under their 4g icon
[AT&T Samsung Galaxy Note II] Tinkerer76:
It picks up the strongest signal, in my case B4. However on B4 I get sub .5mbps, whereas on the weaker signal B2 gets 8-10mbps. I do have 1-2 bars of LTE around my house, but it only picks up 8-10mbps (even if I go closer to the tower and get 4-5 bars the speed stays the same). I don't want the LTE radio on if I'm not seeing any speed improvement. But if I enable automatic WCDMA it will only give me the sub .5mbps speeds because B4 has a stronger signal.

---------- Post added at 03:21 PM ---------- Previous post was at 03:19 PM ----------

You can change the symbol indicators if your ROM supports it. T-Mobile default LTE symbol is 4g while HSPA+ is H.
[AT&T Samsung Galaxy Note II] New Optimus:
what is your apn?

If the AWS HSPA signal is stronger then the 1900 I would expect a much faster download and upload.

I suppose if there is too much congestion on that it would be slower I guess.
[AT&T Samsung Galaxy Note II] Product F(RED):
Make sure you're using fast.t-mobile.com as your APN, not epc.tmobile.com (which is the old APN).
[AT&T Samsung Galaxy Note II] mastermindx85:
Its not I have a tmobile n2 and it shows an lte icon. And 4g is hspa
[AT&T Samsung Galaxy Note II] Product F(RED):
It depends what ROM you're on. On the stock T-Mobile Note 2 ROM (I have a TMo N2 too), it says "4G" for HSPA+ and "4G LTE" for LTE. I'm running an N7105 ROM now and it says H+ for HSPA+ and LTE for LTE.
[AT&T Samsung Galaxy Note II] New Optimus:
This is the script but I dont know if it will work with the note 2, I see they have different scripts for the s3 and the s4.

http://xdaforums.com/showthread.php?t=1626638

also DO NOT USE FAST.T-MOBILE.COM it will slow your downloads way down.

On my nexus 4 it can only connect to LTE using that apn. which sucks

on my S3 epic apn works and is much better.

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

Yes every rom is somewhat different. I think most aosp roms say H or H+ for HSPA and either 4G or LTE for LTE.
[AT&T Samsung Galaxy Note II] Product F(RED):
That's weird. I get LTE on both of them, even though it's documented that it should only work on Fast.

EDIT: Holy crap, you're right. http://www.youtube.com/watch?v=0ohHlpaMWMM
[AT&T Samsung Galaxy Note II] New Optimus:
If your nexus 4 connects to lte using epic apn count yourself lucky.

my s3 can connect to lte using epic apn as well as connect to hspa. the lte downloads are not slowed by the fast.t-mobile apn but the hspa download speed sure is.
[AT&T Samsung Galaxy Note II] Product F(RED):
*My Note 2, and yes, it does. I have LTE pretty much everywhere around here, so I'm not on HSPA+ as much as LTE (except maybe walking through a building since their signal penetration sucks). I did just run a speed test on both APNs on LTE, and here in midtown Manhattan (by Times Square), I actually got like 4.5 Mbps down vs 3 (which seems extremely slow for LTE, but is actually a miracle if you consider how many people are in this area). I'll test further when I'm back in Brooklyn.
[AT&T Samsung Galaxy Note II] Tinkerer76:
I get identical sub .5 mbps speeds while using B4 with both epc and fast apns.

With B2 fast apn I get 8-9 mbps, with epc I get 5-6 mbps (more testing needed, because before I ever came to this thread I was using epc and usually get 8-10 mbps with B2)

With LTE I get identical 7mbps speeds with both epc and fast apns.
[AT&T Samsung Galaxy Note II] New Optimus:
I would just use LTE, while the actual speed may not be any faster the latency should be very good, as well as upload speed so for real world browsing it 'feels' faster.

its confusing when you say B4 because LTE is Band 4 as is AWS HSPA.:p
[AT&T Samsung Galaxy Note II] Tinkerer76:
The latencies were essentially the same in my (primitive) tests.

Good call. I'll try to clarify more in the future.

Product F(RED), do you know of any script for AOSP roms similar to the S3 and S4 methods?
[AT&T Samsung Galaxy Note II] Product F(RED):
Nah, sorry :/ I'm not a bigger user of AOSP ROMs on Exynos devices because they tend to be buggy (due to Samsung being stingy with source code/drivers).
[AT&T Samsung Galaxy Note II] Tinkerer76:
Halo is just incredibly useful, better than multi-view imo. PAC brings all the smaller tweaks of AOKP/CM/PA together for a really tight, feature rich rom.

---------- Post added at 05:55 PM ---------- Previous post was at 05:20 PM ----------

Does anyone know what LTE Band 17 is used for? When I enable only that one, it shows that I have no data, but looks like I should have voice/sms connectivity (signal bars). But I can't get any calls/texts with it.

On B4 LTE I can get sms but can't get calls.

---------- Post added at 06:01 PM ---------- Previous post was at 05:55 PM ----------

Ah I found that thread yesterday. It doesn't do what I'm asking though. I don't need to get into modem diagnostic mode to use QPST. I want to get into the diagnostic mode that lets you select which bands you want to use.
[AT&T Samsung Galaxy Note II] New Optimus:
I am fairly sure LTE BAND 17 is att's. would not do you much good on a tmo sim:p

Voice can not go over the LTE radio so you put the phone into a LTE only band and it will not send or receive phone calls. mms and sms no problem though.

Sorry I thought you needed to get into diagnostic mode, and as far as I know there is no way to get the band selection in any aosp rom.

I wish there was.

Let me edit that, Voice as it currently is transmitted, however there are VOIP apps that will do it, like vonage.
[AT&T Samsung Galaxy Note II] Eppidemic:
Just looking for a straight forward answer before I go buy an unlocked ATT phone off a guy. I'm not familiar with the "bands" and different jaren being used on the threads.

I'd just like to know, can that phone be used on Tmobiles network just like the Tmobile version would? With all the different 3g 4g LTE stuff?

If I'm gonna have issues or have to root or try different roms every month to keep it going, I dont' want to hassle with it. If I have to do new stuff every update I think I'll just pass. But if it's a quick one time thing and will work fine from then on out. It's a good deal and I would like to buy it.

Thank you
[AT&T Samsung Galaxy Note II] New Optimus:
Several Questions for you.

You say "an unlocked ATT phone" but which phone, most att phones will not run on tmobiles frequencies.

However tmobile has changed some of their markets to allow att phones

And where your located will determine if you get LTE on t mobile, or for that matter any of there data
[AT&T Samsung Galaxy Note II] Tinkerer76:
If you mean a Note 2, yes it will work. To access the older T-mobile bands, use the method in the OP of this thread. You only need to do it once if you don't ever flash a new radio (not related to custom roms or rooting)
[AT&T Samsung Galaxy Note II] Product F(RED):
If you plan on using it stock, you basically only have to do the mod every time there's an OTA (carrier) update, since they usually include a new modem. Honestly, if you're not comfortable with flashing things, just buy the T-Mobile version. But this doesn't require root to do.

Sent from my Galaxy Note 2
[AT&T Samsung Galaxy Note II] Eppidemic:
This is the ATT Galaxy note 2 thread right?

I'm in seattle. I just want to know if I can do a one time "fix" and have it the Note 2 work perfect on Tmobiles network. if I gotta dink around with it every month or so, or have any problems with it I just wont get it.

What about after a major update? any guarantee it will still be fixable after a major android update?

I also don't wanna have to root or any of that crap. A one time fix and then It works like a Tmo phone?...

---------- Post added at 06:18 PM ---------- Previous post was at 06:09 PM ----------

I'm comfortable and have done it with phones in the past. but I only want to have to do it once every major update. Not an ongoing thing. If thats the case then I'll go for it!
[AT&T Samsung Galaxy Note II] Tinkerer76:
You can fix once and be done until the next major carrier update comes out. It looks like 4.2.2 is slated for November, so likely not until then.

Also, don't forget where the "Thanks" button is.

---------- Post added at 09:53 PM ---------- Previous post was at 09:19 PM ----------

Do you guys know how ROMs work to enable/disable LTE/UTMS/GSM? It seems like if AOSP roms are able to do that, they should be able to do the same for individual bands.
[AT&T Samsung Galaxy Note II] Product F(RED):
T-Mobile ROMs include the Network Mode menu. AT&T removes it because they won't want people on the HSPA+ network. Also N7105 ROMS have it. But the T-Mobile based ROMS are better because they have GSM, GSM/WCDMA, GSM/WCDMA/LTE. N7105 ROMS have GSM Only, WCDMA Only (no voice/text), and Automatic.

Sent from my Galaxy Note 2
[AT&T Samsung Galaxy Note II] arrogantS3:
verizon note 2

hey guys, anyone had any luck getting the band unlocked on the verizon note 2? I have h+ but I really want that lte network, Great coverage in my area! If anyone has made an advance, please let me know
[AT&T Samsung Galaxy Note II] ludester:
Just did my Bell Note 2 on Cleanrom 4.9 and now I see additional providers that work on the AWS bands (Wind Mobile and Mobilicity). I am still able to connect to LTE on Bell as I did before (actually a bit better, it holds on to LTE a lot longer then it did before...weird). Speeds are perfect.

I'm going to be landing in Illinois Sunday and will have my Roammobility SIM in (which works on t-Mobile network) hopefully I can test it out and ensure it works on LTE.
[AT&T Samsung Galaxy Note II] trim81:
Anyway to change Imei numbers in the qcn file?

Just curious, is that even possible to revise a blacklis d Imei phone?
[AT&T Samsung Galaxy Note II] Product F(RED):
It is possible to change the IMEI numbers in a QCN file using various tools, however only for the purposes of restoring a borked IMEI number (say, if someone sends you a backup QCN and you want to inject your own IMEI number into it). Please don't talk about trying to use a lost/stolen/unpaid-for device, as that's against the rules.
[AT&T Samsung Galaxy Note II] Mrhunter13:
does any body no if this method can be used on the Verizon s3... I not the bands can be unlocked to the Verizon note 2