yashsingh1/xdaforums huggingface dataset:
[Galaxy S 5 General] jjhaohao:
SM-G901F

Hi! has anybody successfully unlocked LTE bands on SM-G901F? (Galaxy S5 Plus)

Thanks!
[Galaxy S 5 General] xtrepx:
Same problem here. Using stock ROM on a SM-G901F, I've modified the NV values, they are present after reboot, however no reception on the new activated band.
[Galaxy S 5 General] miozao:
Hi!

Someone know if LTE b17 band (2500 MHz) works on G906S ?
[Galaxy S 5 General] botwa2000:
Band 17 is 700 mhz and is supported. 2500 mhz is b41 and it's not supported.
[Galaxy S 5 General] renehd2:
Is there any way to do this on the Sm-G900H? Its the 8cores version

Enviado desde mi SM-G925P mediante Tapatalk
[Galaxy S 5 General] kp.nikhil:
how did u enable band 40??

Sent from my SM-G900F using Xparent Cyan Tapatalk 2
[Galaxy S 5 General] botwa2000:
So I flashed a ported ROM from G901F and now I'm on LTE in places where I never before had LTE reception.

I'd like to know if it's a coincidence and Vodafone just built a new tower transmitting on 2600 mhz that my phone always supported anyway or I get a totally new band B20 on 800mhz.

I used two different apps to try and determine what band I'm on but unsuccessfully.

Anyone has ideas on how to determine the current active LTE band please share.

Btw I can't use service mode *#0011# either - get a blank screen:(
[Galaxy S 5 General] botwa2000:
Screenshots attached
[Galaxy S 5 General] vrl13:
Hi mate! I'm glad to hear someone managed to do it :)

Can you please share how you got the diagnostic mode to operate? I tried both on AndroidGX kitkat and on stock Lollipop (with CP logging enabled in recovery) but I cannot get the phone diag port detected in the QPST app (with USB debugging enabled in developer menu).

I picked the correct USB mode for AP in the *#8080# menu but when I switch to CP the phone is no longer detected.

I'd really appreciate anything you can share about what ROM you used and how you proceeded.

My goal is to try to enable band 38(2600).

Thanks, in advance.
[Galaxy S 5 General] neutrin:
vrl13 -

Enabling B38 does not suffice. If the phone doesn't have a modem for TDD bands it won't work. I enabled all LTE bands on my G900FD but no TDD band is detected.

LE: I used CM12.1 and EFS Professional to put the phone in diag mode.
[Galaxy S 5 General] vrl13:
Thanks mate! (Button pressed).

I guess no 4G from Digi for us then :(

Looking forward to my next other-than-Samsung phone then :P
[Galaxy S 5 General] bazray:
sm-g906L adding LTE bands

I have an sm-g906l and would like to add LTE bands for Uk 2600,1800 and 800 if possible. In the old days of my Galaxy s2 you could just reflash a baseband from a model that works in your region, is it the same for LTE?

I have read that you can use the nv calculator to change values but it does not work, would flashing the baseband from a SM-G901F work or another variant ?

basebands from sm-g906d/k here:

http://xdaforums.com/galaxy-s5/deve...custom-rom-t2848569/post54839028#post54839028

Any help on this is very much appreciated, thanks.
[Galaxy S 5 General] aaanonymous:
I would like to know how you succeeded in writing to NV RAM to enable all LTE bands in the sm-g900f?

I have sm-g900f running the latest nightly CM12.1 klte ROM with the latest Boeffla Kernel. I have tried to enable all LTE bands using the guides but no success. All attempts to write to the two NV RAM locations for LTE using QDXM fail. Always reads 0 no matter what is written to those locations. Thank you.
[Galaxy S 5 General] botwa2000:
Guys see this thread here: http://xdaforums.com/showthread.php?t=2950491

A user [MENTION=5256159]Azlun[/MENTION] claims you'd need to edit NV values in the range of 20k-22k (not just 6828/6829) which isn't editable with commonly spread outdated Qualcomm tools. One requires QRCT NV Manager which is a licensed software.
[Galaxy S 5 General] rdrago71:
Samsung Galaxy SM-G920P Sprint

Hi , please I unlocked the Samsung Galaxy s6 SM-G920p but only work 3g in gsm companies, I need the LTE/GSM option in the phone, you know how to activate the 4g lte in this phone?, thank you so much ,I hope somebody can help me with this please, Thanks
[Galaxy S 5 General] rdrago71:
Hi , please I unlocked the Samsung Galaxy s6 SM-G920p but only work 3g in gsm companies, I need the LTE/GSM option in the phone, you know how to activate the 4g lte in this phone?, thank you so much ,I hope somebody can help me with this please, Thanks
[Galaxy S 5 General] botwa2000:
Hi please can you be more specific what do you mean by unlocking 3g/LTE?

You can change it in the phone's network settings.
[Galaxy S 5 General] rdrago71:
Hi, I mean that my phone only , the phone is unlock work in 3G not LTE, and I want it work in 4G, the phone is unlocked and only work in 3g, and I try several things and the 4G doesn't appear, please

---------- Post added at 09:34 PM ---------- Previous post was at 09:32 PM ----------

I tried to did with *#0011# and the menu doesn't appear either, I tried with root explorer and neither
[Galaxy S 5 General] BahnStormer:
rdrago71 - which phone have you got? the hardware has to be 4G capable and you have to be paying for a 4G data subscription first.... these tips are to help unlock certain 3G and LTE frequencies that the network carriers disable on their phones, to make it more difficult to take you phone over to another carrier.

---------- Post added at 09:53 AM ---------- Previous post was at 09:47 AM ----------

Botwa2000 - would you be able to confirm / sense check my workings, please?

I have a Galaxy S5 SM-G906K, so severely restricted (to Korean carriers), but hardware-capable of pretty much anything!

I need it to work on United Kingdom Vodafone, South African Vodacom and ideally all French carriers:

3g/4g(LTE) bands:

Vodafone UK:

3G: B8 (900Mhz), B1 (2100Mhz)

LTE: B20(800Mhz), LTE B7(2600Mhz)

Vodacom ZA:

3G: B1 (2100Mhz)

LTE: B3 (1800Mhz)

France:

3G: B8 900Mhz, B1 2100Mhz

LTE: B20(800Mhz), B7(2600Mhz), B3 (1800Mhz)

Summary: I need these bands:

3G: 1,8

LTE: 3,7,20

My understanding of the way to work this out, this would mean:

BIN (standard notation):

3g: 10000100

LTE: 10000000000001000100

DEC/HEX based on standard notation:

3g: D: 132 H: 84

LTE: D: 524356 H: 80044

BIN (QXDM notation):

3g: 1000010

LTE: 1000000000000100010

DEC/HEX based on QXDM notation:

3g: d: 66 H: 42

LTE: d: 62178 H: 40022

So for GSM, I need to change NV ID 01877 to 132 (the GSM bands I need, using standard notation(?))

And for LTE, I need to change NV ID 06828 to 62178 (the LTE bands I need, using QXDM notation(?))

What needs to go into NV 441, NV 946, NV 2954, NV 6829?
[Galaxy S 5 General] botwa2000:
LTE B1, B3 and B7 are supported by default.

I couldn't unlock B20 with this guide despite a year of trying:(

I believe it is possible but we need a more powerful / up-to-date Qualcomm NV editor as further values seem to have to be updated. You can't access those lines with the tools mentioned in OP.
[Galaxy S 5 General] BahnStormer:
How reliable is that NV Calc application?

I think I've managed to answer almost all my questions using that (see attached).

There's still a little confusion over all the different 3G 900Mhz bands, but it looks like the numbers stay the same...

And then I just need to work out if I need to convert those to QXDM notation....
[Galaxy S 5 General] BahnStormer:
No LTE band 20 is going to be a killer for me as most of Vodafone long-range is on LTE B20.

Did you try this?

DEC/HEX based on QXDM notation: LTE: d: 62178 H: 40022

or perhaps it's the "byte-swapped" HEX for that 40022, which would be:

04 00 22 => 22 00 04
[Galaxy S 5 General] botwa2000:
I tried a lot of combinations.

The NV calculator that I mention in the OP works fine, a lot of people confirmed that.

So most of the time I'm without LTE except occasionally catch 2600mHz which is unfortunately less spread in Europe than 800mHz.

However 3g network is so fast and strong, I mostly get better speeds than folks on other networks with their LTE.

So the excellent hardware capabilities of the phone overweight lack of B20.
[Galaxy S 5 General] BahnStormer:
Which app do you use to confirm which band you're using?

Unfortunately I KNOW that my phone carrier has VERY slow 3G... so I'm definitely going to need LTE... and in particular, Band 20...
[Galaxy S 5 General] AlpineMan:
Just want to check in to this thread again. Has anyone made any progress as far as enabling additional LTE bands on any Qualcomm-based Samsung Galaxy S5's? I've tried on Verizon S5 (SM-G900V) and T-Mobile S5 (SM-G900T). Both attempts were unsuccessful. I've also tried on Verizon, T-Mobile, and AT&T Galaxy Note 4's.

Thanks.
[Galaxy S 5 General] BahnStormer:
Alpine, given that most carriers operate in a lot of different regions, often with different frequency ranges for each region, it is probably best to work out which frequencies (or Bands) you need and then the questions will be more accessible.

Most of the answers are on https://en.wikipedia.org/wiki/List_of_LTE_networks but if you're in the US, you'll have to research a bit more as they did a lot of micro auctions to allow different carriers market access, but on a very small geographical area.
[Galaxy S 5 General] BlockOfDynamite:
I've tried time and again to do this on my Sprint Note 3 (N900P), and the NV values stick, but to me it sounds like the modem is limiting what bands I can connect to. For example, when I enable LTE only mode, it still looks for and connects to Band 25 (Sprint's LTE band) instead of any T-Mobile bands (like Band 4) (I have a T-Mobile SIM inserted). I feel like if I could flash a T-Mobile modem/baseband (I'd like to use MI7, I'm on Sprint's MI3 right now), it would enable me to select the correct bands and try to use those. However, ODIN never flashes them (it gives a FAIL every time) and flashing them through recovery or adb shell using dd never works.

TL;DR I can enable all the bands in NV but I believe modem is forcing connection to Band 25 instead of T-Mobile bands like I want it to.
[Galaxy S 5 General] botwa2000:
That was the experience all of us had. The NV values stick but it won't work.

I believe further NV values need to be changed but the standard (outdated) editor can't access those.
[Galaxy S 5 General] BlockOfDynamite:
What if I simply rewrote my N900P NV with the NV from an N900T? Also, I've read that Mobile ODIN can flash the modem/bootloader without the bootloader checks that ODIN on the PC does. If I somehow reverted my phone to Stock 4.3 like Mobile ODIN needs, then flash the modem/bootloader, then restore my current ROM without touching the modem/bootloader, would that effectively convert my N900P to an N900T? If you have no idea, I also completely understand, since I feel like we're all in the dark about these things :(
[Galaxy S 5 General] botwa2000:
Honestly, I got no idea.

I know for a fact that some folks tried to manipulate with modem partitions on S5 flashing from other models. Most said they were unsuccessful, a couple ended up with a brick. One chap reported he could enable additional LTE band but never provided screenshots or other proof. Nor did he describe the procedure exactly, so I wouldn't know how credible he was.

I would try it myself but my phone model is sort of unique in terms of hardware specs so I didn't dare to flash other models' firmware.
[Galaxy S 5 General] BahnStormer:
Did you see this thread from BlackSoulxxx?

http://xdaforums.com/showpost.php?p=55560160&postcount=148

There's a beer heading his way if that works!!!
[Galaxy S 5 General] botwa2000:
Yeah I tested that back in the day and also exchanged emails with black soul. His solution never worked on S5 as far as I know.
[Galaxy S 5 General] free30:
Lte Bands G906S

Hi.

Am I'm right in saying that you can not edit the LTE Bands on the G906S as posts suggest?

I've tried what seems like everything and I can change the NV values 06828 and 06829 and can make them stick but still no B20 as I require.

Is there a possibility that I'm running the wrong firmware to make it work or I need to flash mu modem with a g901f modem or something?

Any help much appreciated.

I'm using this guide and others http://xdaforums.com/gala...ds-to-t2886059

One thing I have noticed is that reading the NV values on my g900f is much quicker than on my g906s
[Galaxy S 5 General] botwa2000:
Hi,

So far no luck.

I doubt anyone tested on moo Marshmallow yet though I believe the process is ROM agnostic.
[Galaxy S 5 General] BahnStormer:
What is the best way to tell which Bands are available to a device (after the NV values have been tinkered with)?

(don't get excited, I've not cracked B20, but I just want to know if I'll be able to tell if I have!)
[Galaxy S 5 General] free30:
I used this from the first page. although I had to use 'phone info' app to get the *#0011# menu up.

Open the dial pad

Type: *#0011# to enter Service Mode (Be very careful with what you do here)

Note: You need to be rooted for this to work

Once in Service Mode, do the following:

Tap the menu button and tap Back

Tap the menu button again and select "Key Input" and enter an upper case Q and press OK

Tap the menu button again and select "Key Input" and enter 4 zeroes (0000) and press OK

Wait 5 - 15 seconds. You'll see the Main Menu

Choose option [2]: UE SETTING & INFO

Choose option [1]: SETTING

Choose option [1]: PROTOCOL

Choose option [2]: NAS

Choose option [1]: NETWORK CONTROL

Choose option [4]: BAND SELECTION

Choose option [4]: LTE Band Preference

Choose option [7]: LTE ALL (Or you can choose any band instead)

If you want to go back then tap the menu button and choose Back (Don't press the back key)
[Galaxy S 5 General] botwa2000:
There are apps on Google Play Store that show what band you are on. E.g. LTE Discovery, but there are a few others as well.
[Galaxy S 5 General] billnick:
Hi, I have an SM-G860p (Sprint). I need the AWS band 4, did all these steps correctly , but I still appear the same bands (LTE band 25 (1900), 26 (850), 41 (2500)). I suspect it's because the modem, but can not find any that work on my model. Someone could give me a hand that can not find how to make all the bands appear.
[Galaxy S 5 General] leboreiro:
does this method works im on g900M wanting to activate lte band 3 . this mod is permanent? or it get lost if i update software?
[Galaxy S 5 General] Heretix650:
Help me people. Please

Hi . I've been reading all these threads on the 906s and really need to unlock 3g (B8)900 and 4G (B28)700....

I've been through the service menu and found some interesting things. It actually has my lte band 28 in a list but it's not a good list lol

And the skt menu seems promising but I don't know what to type in there.

I can't post the pics but there seems to be settings in the Korean menu in service mode for lte.....maybe they're blocking the channels?
[Galaxy S 5 General] nimbleninja:
modem drivers for S5

I have a SM-G900PZKASPR (Sprint) and have installed CM 13 but can't get the usb settings to work. The most luck I've had is with enabling diagnostic USB mode from the EFS Professional program menu. It does so, but then when I try to reconnect the cable after waiting a few seconds, it doesn't reconnect. I believe this is because I don't have the correct driver for the Samsung modem. A SAMSUNG_Android modem shows up under "Other Devices", and when I look at the properties, it shows the following for hardware ids:

USB\VID_04E8&PID_685D&REV_0400&DiagSerd

USB\VID_04E8&PID_685D&DiagSerd

USB\SAMSUNG_MOBILE&DiagSerd

USB\SAMSUNG_MOBILE&MI_00

USB\Vid_04E8&Pid_685D&MI_00

USB\Vid_04E8&Pid_685D&Class_FF&SubClass_10&Prot_01

USB\SAMSUNG_MOBILE&Class_FF&SubClass_10&Prot_01

I've searched and searched and tried pointing Windows to the drivers installed by the specific download for SM-G900PZKASPR on Samsung's Web site (I'd link but XDA won't let me) but to no avail.

Update: I did two things, at least one of which I think helped:

* flashed the stock recovery and enabled "cp logging," which I thought might be related to setting CP vs. AP

* told Windows to not search for drivers for new usb devices -- when it does this, it appears to block any communications with the plugged-in USB device

Now, when I try to do step 11, the backup gets to 12% and then it says it can't enable diagnostic mode. I'm using the serial port that doesn't say "diagnostic" because no "diagnostic" port shows up.
[Galaxy S 5 General] Maverick923:
Have you had any luck with unlocking other bands on the G906S? I am looking to unlock the T-mobile bands.
[Galaxy S 5 General] Heretix650:
No luck so far. Found an option for band 28 in either the hidden or skt menu but wasn't able to change it....
[Galaxy S 5 General] ikzouhetnietweten:
how to see if I have a 4 G
[Galaxy S 5 General] Platypus123:
Same here, but for Rogers in Canada. Any luck with G906S band unlocking [MENTION=3297485]Maverick923[/MENTION] or [MENTION=7725634]Heretix650[/MENTION]?
[Galaxy S 5 General] Maverick923:
No luck so far. I have kind of given up for now. This was taking up too much of my time. I wish that that person that did it with the G906K made a tutorial on how they did it.
[Galaxy S 5 General] Heretix650:
Sorry people. I had no luck so got an S7.
[Galaxy S 5 General] fbavnova:
I wasn't able to get this working on the Samsung S5 Sport. There was no way to get to the USB settings menu using any of the hidden menu codes (I searched far and wide for a working code). I also tried manual terminal commands but the structure of the directory/files didn't match that of the regular S5 so I have no idea what to modify.
[Galaxy S 5 General] :
I have a problem, After enabling all 4G and 3G Bands, MDM9635 dosen't pop up and my phone is in a boot loop. I downloaded Android 4.4.4 and It's better but I still have a boot loop after 1 minute of the System being started. https://xdaforums.com/galaxy-s5/help/sm-g901f-soft-brick-trying-to-enable-4g-t3610018
[Galaxy S 5 General] Gamesolc:
Hey guys its liammendes, I just don't have access to a PC or my SMS so I am using my second account ( I have 2 Step Phone Number on my account) I installed LineageOS 14.1 and there is no reboot because I removed rild binary from /system/bin . I can now use QPST but My Modem doesn't pop up MDM9635. Only my processor APQ8084 pops up. I think I need the RILD but that would boot loop my phone. Any Ideas?
[Galaxy S 5 General] :
I have excatly the same issue but open those minds because I'm gonna twist the platform a little xD jk lol

I have Samsung Galaxy S5 Plus except I tried to edit all 3G and 4G bands. This has resulted in my phone being stuck in a boot loop. Samsung Galaxy S5 Plus uses APQ8084 and MDM9635 too. Except after I changed the values there is a boot loop so I can't change the Modem NVRAM settings.

What Rom are you guys using and if it's stock, what OS and version were you guys using.

Is it possible to use adb reboot edl ? The screen goes black and there is a new QDLoader diagnostic port so is it possible to use that to fix the problem and edit the NVRAM back?
[Galaxy S 5 General] cfsr4:
What benefit in this mod?
[Galaxy S 5 General] x2bc4:
I'm trying to edit 3G bands of a SM-G900W8. It uses same hardware as T-Mobile G900T. I'm able to modify item 6828 but not the item 1877. This item always reverts back to stock value at boot time. Any progress over this?
[Galaxy S 5 General] 33Brenx:
[MENTION=6021435]botwa2000[/MENTION] may i ask what OS should be required in doing this steps? I am currently using Marshmallow Samsung S5 900P. I have a doubt doing this because didn't sure what OS should be :eek:

---------- Post added at 05:53 PM ---------- Previous post was at 05:43 PM ----------

and one more thing I've unlock my Samsung S5 sprint using SamsungToolPRO Z3x just to be usable here in Philippines. And it's ok now, LTE 2500mhz only working in one of our telco
[Galaxy S 5 General] 33Brenx:
[MENTION=4583018]yakapa40[/MENTION] what OS required? It's ok for Marshmallow?
[Galaxy S 5 General] yakapa40:
it's not an os problem but for Samsung devices it's very hard to add fréquncies .

sometimes you need to add other nv items values than NV1877 or NV6828

for service mode , *#0011# don't work for all G900 and all android versions

for diag mode : https://xdaforums.com/sprint-galaxy-s5/help/diag-mode-detected-anymore-help-t3036309
[Galaxy S 5 General] x2bc4:
At least in my case (G900W8) I've been able to successfully edit item 6828 with all custom ROMs that I tried, and most stock ROMs too. Only one stock ROM with Android 5 resisted.

But item 1877 has been rolling back automatically at boot screen every single time.
[Galaxy S 5 General] yakapa40:
for NV item 1877 , have you try to edit it with : NV-items_reader_writer ?

what is the new value you try ?

original NV item 1877 for G900W8 :

80 03 E8 06 ( hex flipped ) = 115856544 ( décimal ) = b7,8,9,19,21,22,23,25 and 26
[Galaxy S 5 General] x2bc4:
The thing is no matter what value I insert the NV item 1877 never sticks. I tried many numbers, either calculated or taken from other S5 variants. I've even tried with value zero. Any value I use for any other item number like 6828 sticks but for item 1877 nothing do.

My tools are QXDM, QPST, QDART.

In the past I've successfully modified item 1877 to other Samsung models, including S4 M919
[Galaxy S 5 General] 33Brenx:
you mean including stock ROM android 6.0.1 successfully edited?

---------- Post added at 03:29 PM ---------- Previous post was at 03:26 PM ----------

I'm planning to add only LTE band 1 and 28
[Galaxy S 5 General] x2bc4:
Yes, including, though I wasn't able to access service menu *#0011# features. Not that it is crucial for your purpose.

The case with Android 5 was that it never became visible to QPST, at least the serial port.
[Galaxy S 5 General] asdf2345:
After some looking, I found the maximum amount of bands I could add that are relevant to the US. 2, 4, 5, 12, 13, 14, 17, 29, and 30. I was also going to add 41, but that seems to be break forcing control in Network Signal Guru, so I removed it. The decimal from the calculator if you want it, 805386266

However I still seem to only have band 4 and 13 usable on my S5 G900V. I seemingly connect to both no matter if I use an AT&T or T-Mobile SIM. I get no data or anything on either, just signal that is useless. If I disable 4 and 13 in Network Signal Guru, it still stays connected on 13.
[Galaxy S 5 General] Sepero:
Firstly, I want to say thank botwa2000 you for bringing this subject back, and I hope this thread will survive where others have failed. The issues with the previous threads make me hesitate greatly to follow such instructions.

I'm trying to enable all bands on an International SM-G900F. I wasn't able to find anyone post success with that yet. I'm just requesting that the correct values please be posted if/when they are found. Thank you
[Galaxy S 5 General] botwa2000:
Please do post your NV dump. I'm gonna make a collection of those centrally so that people don't have to search through the threads. I've got a couple also and will upload them as well.
[Galaxy S 5 General] botwa2000:
Hi,

Yes I meant Service Prog, you're right.

I'm not in front of a PC right now so can't confirm precisely but from memory I think I had every single box checked in on that mask and all drop down items were set to 'auto' or 'automatic' mode where possible.

See what values for those NV (441, 946, 2954) I have in my dump that I posted and try to set yours the same way.

Make sure you run QXDM as administrator otherwise it'll prevent you from editing.
[Galaxy S 5 General] Hongdae:
I am creating a backup of my NV values with EFS Qualcomm NV Tools. I will compare it with yours and change those values. Then I will use the new file as a restore. Let's see if it works!
[Galaxy S 5 General] botwa2000:
I don't know about enabling all bands. See this thread here http://xdaforums.com/showthread.php?t=2928561

They can only enable certain bands on certain models of Nexus.

You may wanna compare your default bands with those nexus phones, see what comes the closest and experiment adding only those bands relevant to that specific model. I think you'll have a much higher chance of success.

Also in my opinion it only makes sense to add those bands that you actually can test if they work.
[Galaxy S 5 General] botwa2000:
Sounds reasonable. Good luck! :thumbup: