yashsingh1/xdaforums huggingface dataset:
[Redmi Note General] skezza:
OK. An update.

I set my value to 10000000000000000000010000000000000000101 which is 1099512152069. This is Band 1, 3 20, and.... 41, which was apparently unlocked before. Not convinced though.

So far, can't tell whether it's actually done anything. EE 4G is still there, which makes sense because they have strong 4G in the UK. O2 which has piss poor 4G in the UK, only use Band 20, so seeing that as an option in the Network selection list would be a perfect way to check how valid this experiment is. I'm currently in Wilmslow in which O2 suggests I should have strong coverage, but nothing showing up yet, only EE.

However, I'm in a building, and it's a big building, and signal varies. Really, the best time to know is outside. Perhaps I will get O2 showing up with 4G in the network selection as an option.

The saga continues ;)

---------- Post added at 03:23 PM ---------- Previous post was at 03:19 PM ----------

Hah, another update. OpenSignal map, which uses data collected from actual devices shows that O2's 4G data is piss poor in Wilmslow (despite their claims). I'll wait then, and report back with further results ;)
[Redmi Note General] ando.rulez:
what is the device code? mine HM Note 1S CU KHKCNBL.
[Redmi Note General] skezza:
Bad news, looks like you can't unlock band 20 :( OnePlus One users found this out. Perhaps you can't unlock band 20.

http://xdaforums.com/showpost.php?p=56577252&postcount=455
[Redmi Note General] Albirew:
You did a great job on this tutorial with a load of screens.

Have you considered there may be hardware limitation concerning LTE20 ?
[Redmi Note General] skezza:
My last couple of posts seems to possibly clear this up. It's very possible that Qualcomm haven't enabled Band 20 in the modem.

I wonder though, if we flashed a modem for a different device, whether we could unlock band 20....... food for thought isn't it?

---------- Post added at 04:06 PM ---------- Previous post was at 04:02 PM ----------

From the Zenfone 5 with the same chipset, again no band 20:

GSM: Band 2/3/5/8

WCDMA: Band 1/2/5/8

TD-SCDMA: Band 34/39

FDD-LTE: Band 1/3/7

TD-LTE: Band 38/39/40/41

From the Lenovo 856:

(4G): FDD - LTE: B1 (2100 MHZ) / B3 (1800 MHZ)

However, contradicting all that, from Moto G 4G, which uses the same chipset:

US Model: Bands 2, 4, 5, 17 (1900, 1700, 850, 700 MHz)

European model: Bands 1, 3, 7, 8, 20 (800, 900, 1800, 2100, 2600 MHz)

So from a purely hardware perspective, it looks as though it's very possible to do this. I wonder if flashing a Moto G 4G Modem would unlock Band 20.... :o

---------- Post added at 04:10 PM ---------- Previous post was at 04:06 PM ----------

Some China mobile. Same chipset:

FDD-LTE BAND 1/3/7/20; TDD-LTE BAND 41

Again.... Band 20.

It's possible, we need to flash a Moto G 4G Modem though.... now, talking about it is easy, but how we do it, without killing our devices, that's where it becomes fun, because I doubt we can just flash the baseband and assume it'll work. That's got lost IMEI written all over it.
[Redmi Note General] blackysan:
Thanks for all your hard work AMD details how to. I'm able to add those band to my Redmi NOTE 4g but unfortunately, nothing works. I believed it's the hardware limitation. My Redmi Note 4g only supports FDD-LTE band 1, 3, 41. I needed band 2, 4 to beable to work with my US network.

Luckyly, I'm fortunate to purchase a HK model of Xiaomi Redmi NOTE 4G. this one ssupported FDD-LTE band 1, 2, 3, 4, 7! I can now use my US tmobile LTE network without any problems!

The questions I have now is:

is there any way to extract the modem that I have in the HK model Xiaomoi Redmi NOTE 4G and make a flashable zip file to flash it in my China Model Redmi NOTE 4G using CWM recovery? I would LOVE to help those people who bought the China model of Redmi NOTE 4G that couldn't use the LTE in the States. Anyone knows how to make a flashable zip with my modem in it?
[Redmi Note General] blackysan:
i have a compatiable Hongkong version band 1, 2, 3, 4, 7 LTE redmi NOTE 4G. do u know how to extract the modem or baseband from my compatiable phone and flash it to my uncompatiable phone (China model).
[Redmi Note General] GeorgeZZzz:
Thanks for all your replies guys.

I remember last time I flashed this kind of thing is when I was still in uni and flashed BIOS on motherboard......over 15 years ago......

Flashing the modern or baseband sounds promising but dangerous as well.
[Redmi Note General] blackysan:
It's the same phone with the same chip and everything. It's not from a different phone with the same chip I'm talking about in my case…

China model of Redmi NOTE 4G is widely available on the net (FDD-LTE band 1, 3, TD-LTE band 41). And it's the ONLY model that people can buy at the moment. So people who bought that were pretty much stuck with HSPA+.

So. If any XDAer out there know how to transfer my HK model (FDD-LTE band 1, 2, 3, 4, 7) modem or baseband to the China model will be much appreciate! It's almost impossible to purchase the HK if u r not living in HK.

---------- Post added at 09:15 AM ---------- Previous post was at 08:55 AM ----------

I loved the Mi NOTE! I like the design dual glass and OIS camera. I'm hoping to purchase the Mi NOTE PRO when it come out next month. But having incompatibillties LTE band is the only problem keeping me back. I've been with Xiaomi phone since Mi2s. Now I'm using the HK model Redmi NOTE 4G because it's the ONLY Xiaomi phone right now that is 100% working with US LTE networks.

Xiaomi's 1st Global Mi phone code named "i" will be announce on the 23rd this month in India. Rumors said Xiaomi called this model the "Global Mi Phone" was because of the 4G LTE it supported. So if the Mi NOTE PRO has the same band as the regular Mi NOTE, guess my next Xiaomi phone will be the "i"…
[Redmi Note General] skezza:
Isn't it a case of Global Rom vs China ROM? The Global ROM flashes the global modem although, I've got a global ROM and i had 1, 3 and 41 myself.
[Redmi Note General] blackysan:
nope. flashing the global rom will not change the modem of the phone. my HK model of Redmi NOTE 4G came with HK version of MIUI V5, then updated to Global version of MIUI 6 and now i'm using the Chinese version developer rom. and my 4G works on all 3 roms.

if that's the case, it might be the LTE antenna were different.....but we needs some expert to confirm this.
[Redmi Note General] skezza:
I'm not even aware there was a Global version and a HK version :o
[Redmi Note General] inkaine:
Xiaomi Redmi Note 4G LTE band unlock - Tutorial

Thank you very much for this wonderful detailed explaination, [MENTION=6575281]GeorgeZZzz[/MENTION]. Unlocking addtitional bands worked like a charm. Sadly as with each of you, there was no success on finding any LTE connection on band 20. I'm curious how bands 2, 4, 7 or 17 will work during my planned summer vacation in the US. :cowboy: Since after reading several of the previous unlock threads I fear it's all antenna related and not so much a snapdragon/software unlock issue. If that's truely the case we won't have any luck.

However during my unlock session in QXDM I had an interesting find:

Only an idea, but maybe the bands are additionally hardcoded into the firmware?

Anyways, it's nice playing around and thanks once again [MENTION=6575281]GeorgeZZzz[/MENTION] for making it easier with your "tutorial". :good:
[Redmi Note General] tindan:
try this

try it on your phone

1. while your phone is on, pull out the simcard

2. press ok on the "no simcard" notification

3. open the phone dial

4. press "*#*#4636#*#*

5. voila, the network choice is available, choose CDMA (even if you are using GSM)

6. close it py pressing back until you enter the home screen

7. insert your simcard

8. go to setting and change your SIM network option

to "global" or "4G/LTE)

9. exit back to home screen and there it is your 4G/LTE bar shows up

warning! after you got the 4G, never change the preffered network agan (don't open it), because the option the will be back to 3G / 2G)

it worked on my redmi 3 pro, i assume it will work on other phone that has the same problem. please try it and let me know the result.
[Redmi Note General] BaTaK_iCe:
Hi Bro, I have same problem but the 4G only work on my SIM2 only, SIM1 will not be able to register to 4G network even if it's manually select the 4G network.

In the forum link posted below seems people able to fix the issue, and they also post the culprit ROM 7.1.9.0.0 download location, you can have a try to flash back this ROM if you wanted to, perhaps you can update us if your B20 working back in this custom ROM or not.

The XDA forum link as Below (check the last page):-

http://xdaforums.com/redmi-note-3/help/4g-lte-connectivity-sim1-t3371432
[Redmi Note General] kameleon20:
Isn't the problem that those bands are already in use for (for example) 2G or 3G?
[Redmi Note General] Richadali:
I am using redmi Note 3 . I want to set my LTE band on band 40, but how to do it. please reply
[Redmi Note General] Khan222:
LTE 5

I have Qmobile Noir LT500 which supports LTE 800 / 1800 / 2600 but not 850. My service provider is on LTE 5 ,850 MHz. Can I unlock LTE 5 using this procedure? My phone is not rooted I'm asking coz I'll root it just for this.
[Redmi Note General] Khan222:
No reply since a week !
[Redmi Note General] Top4man:
Will this work with mi 5 pro? can i make it work with wind and bell?
[Redmi Note General] prince10t:
Hi, Can a NaNdroid backup be used as a rollback plan in case something goes wrong after doing this?
[Redmi Note General] avadesh07:
How to unlock lte band in huawei ascend p7 L-10

I want to unlock lte bands in my huawei ascend p7 as this phone is from other country and I m in other country with service provider having lte band differ than mobile's actual native country's lte band. Plz help tounlock the lte band for my mobile.

I want to unlock 2300 MHZ and 850 MHZ band of lte that is 40 and 5.

Thank you....

Or suggest me any custom rom so that I can use this service provider of band 800 , 1800 and 2300 MHZ.
[Redmi Note General] jignesh27:
i'm not able to install diag driver for my mi4i in window 10

---------- Post added at 11:58 AM ---------- Previous post was at 11:49 AM ----------

i enable dial port in my mi 4i and then connected it to my pc,it shows four mi 4i devices in device manager but my pc using windows 10 is not installing any DIAG driver i've tried quaicomm driver , modified HTC Diag driver and one more but not working.have any idea please help me....:)
[Redmi Note General] Bloodshot:
Is it possible to unlock a SD808 phone like the mi4c?

thanks guys
[Redmi Note General] gerstavros:
i managed just to brick it. if you find a successfull way, post it here
[Redmi Note General] sanke1:
I tried to unlock Band 5 (850 Mhz) on Redmi 2 Prime. I even managed the band 5 to show up in Network Guru app but the phone does not catch any band 5 signal. So this method will fail if the phone doesn't have physical hardware RF amplifier to catch the signal. BTW the NV values stick after reboot or installing a new custom ROM.

Sad day!
[Redmi Note General] thm2009:
This is wrong! The string 11110000000010000000100100010000011011111 means LTE band 1, 2, 3, 4, 5, 7, 8, 14, 18, 21, 29, 38, 39, 40, 41

The correct string for LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700):

11110000000001000000010010000000011011111

nv_lte_bc_config_type.lts_bc_config = 2061719109855‬ (06828)

It works for me: Vodafone (Germany) on LTE band 20 (800). (Xiaomi Redmi Note 3 [Snapdragon])
[Redmi Note General] rmchamunda:
help me to enable band 5 in redmi2

i have tried to enable band 5 (850) in my redmi2 via QXDM method. when ever i set only band 5 its doesn't show any network infact it shows wcdma in network mode. again i set it back to 1800,2300 band... please help me to enable band 5 so that i could get good network coverage.
[Redmi Note General] corruption17:
Hm, same Phone, same Country, even same Provider (Germany, Vodafone) i can't get LTE Band 20 with this Code.

(Confirmed with simcard in another phone that has Band 20. I have FOR SURE 800mhz LTE in this Room, but with the Redmi Note 3 i have only H+ or 3G. )

Sure, that app says its activated, but it is not! - At least in my case. I think in your case its not activated, too.

Are you a 100% sure that you are not using 1800/2600mhz you can see the Vodafone Network coverage on their website. Or just Google "Vodafone Netzabdeckung" (go to detail view.)

If you are sure, what did you do exactly? Only changing the NV-Ram with this value does not work. Maybe we have different antennas in our phones?
[Redmi Note General] derdigga:
I would like to know it as well, same here Vodafone Germany. Btw I'm using mi note " pro", would it work for it? Thanks
[Redmi Note General] sheapes:
Can someone please send me a link with instructions how to unlock frequency LTE band 28 for Xiaomi Mi5 Pro 128gb phone?
[Redmi Note General] mrijalabdulatif:
What is it working on redmi 3?
[Redmi Note General] IsaacNaddy:
This is not working at all. I unlocked bands 1, 4, 12 on my Mi5. I live in USA and I use T-Mobile. Network Signal Guru shows that my phone has those bands after unlocking them (it didn't before though). However, that still doesn't change the fact that I cant get LTE. I only get HSPA+. So I think, long story short, THIS METHOD DOESN'T WORK, and there is no need to ask if it worked for someone over and over again. We need to find another solution.
[Redmi Note General] SuperKenzoUser:
I have kenzo, and I don't have 4G..

This guide will help me? What is the code I need to write?
[Redmi Note General] RaffaeleTheMega:
So it seems someway sure that unlocking B20 band on Xiaomi phones is:

1) A matter of hardware, but it is strange that a manufacturer will spend lots of money just to buy different chips than standard ones that sports by default all frequencies (supporting all frequencies by default it is a matter of economy during chip manufacturing). Maybe Qualcomm Chip just present some pins not soldered on Phone Motherboard so this works as a real "hardware" easy method to OFF definitively frequencies?

2) it is a matter of Firmware in Qualcomm Modem Chip.

Qualcomm just defines in Firmware enabled/disabled frequencies upon phone manufacturer requests, depending on market of reference (Most easy and economic solution).

3) it is a matter of 2 steps switch-on process (A) Unlocking Band in drivers (B) Activate it from firmware or somewhere else (Kernel? Or perhaps presence of 4G-LTE SIMs with correct Band activation code embedded in SIM?)

One thing is sure! Starting from today I humbly suggest to maintainers it should be MANDATORY on XDA Forum, when someone comments he unlocked something special, to post ALL of his/her phone specs (CPU, Android version, etcetera) and mainly the Modem Chip Release Number Code before submitting any entry. This is necessary to check what modem chip versions really work after unlocking bands.

It could be just a matter of functions that are present on a single batch of chips rather than another, purchased by phone manufacturers.
[Redmi Note General] hindibuddy:
how to use on note 3

same so unlock the LTE bands to speedup jio or not
[Redmi Note General] Creator sun:
redmi note 3 pro not support Carrier Aggregation B7+B3

redmi note 3 pro

b3

b7

not carrier aggregation b3+b7

Samsung phones tested by me in the same place

How do I fix this problem?

please help
[Redmi Note General] nazmi28:
[MENTION=1544497]thm2009[/MENTION]

To enter the code you gave. Band 3 is lost. Redmi note3 pro var bende de. Turkish band3 is not present anymore.
[Redmi Note General] nazmi28:
[MENTION=1544497]thm2009[/MENTION]

Do you write the following codes nicely? Do you take an activation video? Your academy being redminote3pro model SPECIAL? Because it's band 20 on it. MIUI did not try to release it and went to band3. I expect news from my friend.

Redmi Note 3 cihazımdan Tapatalk kullanılarak gönderildi
[Redmi Note General] amnher:
On my redmi 3x my value is 2061584302149 so the binary value is *0001 1110 0000 0000 0000 0000 0000 0000 0000 0100 0101‬. I want to disable band 41. So binary is 0000 1110 0000 0000 0000 0000 0000 0000 0000 0100 0101 and decimal is *962072674373‬ but I am getting error writing that decimal
[Redmi Note General] nazmi28:
[MENTION=4269226]amnher[/MENTION]

I think I need hardware support. I need the support of 4g modems. I tried many methods shared but it did not change.

Redmi Note 3 cihazımdan Tapatalk kullanılarak gönderildi

---------- Post added at 09:37 PM ---------- Previous post was at 09:36 PM ----------

I am only hopeful at 4x. China and its global version came out very quickly. Maybe hidden bands can be opened at 4x.

Redmi Note 3 cihazımdan Tapatalk kullanılarak gönderildi
[Redmi Note General] fardeenah:
i have a redmi note 3 but band 3 is not working, i even changed the NV ram to its corresponding code but nothing

even tried 04 as nv code
[Redmi Note General] nazmi28:
Twrp efs do you have a spare? Mi flash reload rom band 3 comes. arrow.

Redmi Note 3 cihazımdan Tapatalk kullanılarak gönderildi
[Redmi Note General] amnher:
I mistaken copy pasting. I manually typed it and it accepted it. But the question is will it open other bands also? I mean if I enable Band 28 on my Redmi 3x will it connect to that 700 Mhz. spectrum?
[Redmi Note General] kral10000:
I need Carrier Aggregation b3+b7

please guide me

thank you
[Redmi Note General] Ecz. Erdem:
It does not work :( I have tried all the alternatives
[Redmi Note General] youngtodie:
Redmi note 4

Hey

could this method work on redmi note 4 indian version?

I just want to unlock Band 3 1800Mhz+
[Redmi Note General] atf2m4:
could this method work on Redmi note 4 SD indian version?

I just want to unlock Band 1 2100Mhz+
[Redmi Note General] baban.202020:
LTE band 3(1800), 5(850), 40(2300) already active in redmi note 4 india version

---------- Post added at 12:05 PM ---------- Previous post was at 12:04 PM ----------

LTE band 3(1800), 5(850), 40(2300) already active in redmi note 4 india version
[Redmi Note General] youngtodie:
actually vodafone 4g works on band 3 and i am not getting the 4g signal, whereas i am getting 4g signal for all other network providers, after a lot of research i found that band 3 is locked
[Redmi Note General] nazmi28:
I have 2 xiaomi note 4. Global and chinese version.

I wrote the following codes for the Chinese version.

Nv browser

B1 = 6735 and 6736

B40 = 06683

B7 = 06578

These codes are different. I wrote the version for you, but it did not work.

These codes also change to

06828

01877

01878

As well as the version of the .QCN global note 4 file.

None worked.

I think the LTE band modems are different. The processor is the same but the lte modems are different.

---------- Post added at 10:19 PM ---------- Previous post was at 10:16 PM ----------

The network signal guru also shows bands but can not get the network version.

I download all the above codes for the version.

The result is negative.

I do not think this is business codes.

Lte modems are different.

We deal wasted.
[Redmi Note General] XDM inc:
i did all the calculation and added the bands i wanted but my final number is short 1 number in QXDM, i went ahead and inserted it anyway but my phone cant seek any networks now, but the 2g still works like it did before
[Redmi Note General] eddie24902005:
Can I use this method on other devices such as Samsung? thx........
[Redmi Note General] sanjeevprasad.j:
Is there any way to unlock band 1 (2100)? please help me with it .
[Redmi Note General] nophyan:
Lte network appear but can't register to it.

Please somebody help me
[Redmi Note General] Heliosasito:
I've found the solution for your problem but it's risky.

I successfully unlock the bands I want but my device failed to find 4g.

So my device Redmi 4 prime/pro (R4P) running a snd625 along with Redmi note 4 (RN4) but the different is RN4 contains more bands including band 5 which is I need.

What I do is by download the latest RN4 miui rom. I choose global rom because RN4 global version contains band 5. Then I find file name NON-HLOS.bin (modem file)

I changed my 06828 and 06829 values by following the bands that RN4 have. You can use nv calculator on play store.

Then put that NON-HLOS.bin in adb and flash it.

Here is the risky part when my R4P give me heart attack when it said no sim card detected.

So I flash it using original R4P NON-HLOS.bin then it's back to normal. (Thank God)

So that's it. Try it by your own risk
[Redmi Note General] JorgeMSLopes:
Hello,

I have a LeEco Le S3 x626, which has the following LTE bands:

FDD-LTE – B1 / B3 / B7

TDD-LTE – B38 / B39 / B40 / B41

I live in Portugal and I need to use the B20 band as well, is it possible to use the same method as explained above for XIAOMI in my LeEco Le S3 x626?

Thanks
[Redmi Note General] D.Price:
No
[Redmi Note General] JorgeMSLopes:
Hello,

Thanks for the quick response.

Do you know any method to unlock the B20 in my LeEco Le S3 x626?

Thanks
[Redmi Note General] neokragu:
I have RN4 SD model. I am able to connect Vodafone 4G without any issues.
[Redmi Note General] tehmal:
its possible unlock any bands for redmi 3 pro [ido]?

for example 900/1800/2100/2600?
[Redmi Note General] TTP:
What am I doing wrong? In my case the the LTE BC config says "NV Status Error Received: Item Inactive"

What can this means? I am using my Xiaomi Mi 6

Screenshot: h***s://picload.org/view/ddworilw/lte.jpg.html
[Redmi Note General] grinna:
hello I have Redmi 4x SD435 (msm8940), I need the LTE 28 band (700mhz) will I be able to do this on my device
[Redmi Note General] Hardstylez92:
does this guide work with oneplus 3?

oneplus 3 make use of a qualcomm snapdragon 820
[Redmi Note General] D.Price:
Thanks to check under OP thread
[Redmi Note General] Hardstylez92:
in the op tread there is a guide, but it is obsolete for the firmware
[Redmi Note General] skanskan:
Can I use the same method and tools for newer Xiaomi mobiles such as the Xiaomi Mi 8?
[Redmi Note General] D.Price:
Same answer : stop asking this on this thread, and btw Mi8 has got lots of bands unlocked
[Redmi Note General] spkprs:
I followed the guide and passed with success LTE 4G in Xiaomi redmi 4A (16GB) for the first time show LTE

but with Network Signal Guru connected in B7 not B20.

Thanks @ GeorgeZZzz for ...
[Redmi Note General] sharkboy0328:
Mi5s Plus

Will this work on Mi5s Plus?
[Redmi Note General] stonegrey:
I've done a bit of research on this and found that band 20 may need to be paired with band 32 for full LTE support, one is uplink, and the other is downlink.

the value in 06828 was changed to 2063732310101 (this should unlock 20 and 32 along with the original bands on a Mi5s plus, this did nothing, I checked using network signal guru.

I then changed the valve to 689476993221 (1,3,7,8,20,28,32,38,40) checking through net guru showed that bands 1,3,7,8,38 and 40 were now unlocked, which proves that band unlocking is very possible on Xiaomi devices.

There are now some options to consider, either some of the hardware doesn't support the extra bands (the x12 modem will most certainly work with band 20), or the interface between the modem receiver needs modifying, not sure if this means the RIL or the baseband.
[Redmi Note General] Timmons:
I tried this with redmi note pro 7 and did take a backup with QPST but now the phone is not recognized says on ports Phone ? (0). It wont' let me restore the nvbackup. I need someone's help.
[Redmi Note General] stonegrey:
if you haven't already done so, disable digital driver signing and reinstall the drivers.
[Redmi Note General] Timmons:
Took me 2 days but i got everything back.. The backup file was the wrong one. Quiting at this while I am ahead. Maybe later will give this another try if i get pissed at the bands again.
[Redmi Note General] Mattewsb:
This is so useful, why XDA guys give up add extra bands at smartphones?
[Redmi Note General] D.Price:
Coz now Xiaomi added it more oftenly
[Redmi Note General] Mattewsb:
What you mean?
[Redmi Note General] dajo77:
Mi 9 SE

does this guide work with MI 9 SE ?