Database Develop

[Q] URGENT - Compatibility of Moto X 2014 with O2 in the UK

Hi, guys!
I am flying to the States for work and I am thinking about getting a 64gb Moto X 2014 and I was wondering if it´s a good idea.
I am living in the UK and I´m an O2 user, and according to this website, O2 has only 800 band right here:
"O2 spent £550,000,000 to secure 2 x 10MHz of 800MHz spectrum, but didn’t come away with any 2.6GHz and has no 1.8GHz either."
Moto X, according to the website, is compatible only with this LTE networks:
"Moto X - Pure Edition (GSM Unlocked with T-Mo SIM - XT1095):
GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz)
UMTS/HSPA+ (850, 900, 1700 (AWS), 1900, 2100 MHz)
4G LTE (2, 3, 4, 5, 7, 17)
So, my question is... Will I be able to use this mobile here in the UK? Will I find issues with the calls, the 3g or the 4g? Any problem with the bands, at last?
I swear I have been reading this morning a lot of articles but I'm a NERD in telecommunications
I would really appreciate if you guys could give me a hand here because I´m departing quite soon
Thanks in advance!

As far as I can 4g will not work because the phone does not support O2 bands but 3g should work fine.

hasm_747 said:
As far as I can 4g will not work because the phone does not support O2 bands but 3g should work fine.
Click to expand...
Click to collapse
Thanks, dude... Isn´t there any way to make that work? Here they don't sell the 64gb and I really need that amount of space
Thanks again!

luismix said:
Thanks, dude... Isn´t there any way to make that work? Here they don't sell the 64gb and I really need that amount of space
Thanks again!
Click to expand...
Click to collapse
It is a physical limitation rather than a software one. So most likely, there is no way to change/fix it.
EDIT: It seems that 3's and EE's 4g have compatible bands so if you are willing to switch to one of them it might work.
3 supports band 3 (1800 Mhz) same with EE.
SOURCE: http://en.wikipedia.org/wiki/List_of_LTE_networks
NOTE: haven't 3 proposed a buyout of O2?
SOURCE: http://www.engadget.com/2015/01/23/three-uk-acquisition/

hasm_747 said:
It is a physical limitation rather than a software one. So most likely, there is no way to change/fix it.
EDIT: It seems that 3's and EE's 4g have compatible bands so if you are willing to switch to one of them it might work.
3 supports band 3 (1800 Mhz) same with EE.
SOURCE: http://en.wikipedia.org/wiki/List_of_LTE_networks
NOTE: haven't 3 proposed a buyout of O2?
SOURCE: http://www.engadget.com/2015/01/23/three-uk-acquisition/
Click to expand...
Click to collapse
Correct! I heard that 2 weeks ago and it's going to be great for O2 customers... 3 is now a HUGE company here in the UK.
It looks like I will end up getting it because it will work... And I don´t want to stay with O2 anyway
Thanks, guys!

Hey! Let´s go for the next level...
What about the Droid Turbo?
Bands
LTE Cat 4 (Bands 2, 3, 4, 7, 13)
CDMA/EVDO Rev A (850, 1900 MHz)
UMTS/HSPA+ (850, 900, 1900, 2100 MHz)
GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz)
Carrier Aggregation (B4+13)
Any idea? I already decided to leave O2 and go to EE or 3, will I be able to use it with 1800 band?
Thanks again!

The Turbo have band 3, which should be compatible with 3 and EE, BUT I think it is carrier locked to Verizon and I am not sure if you can unlock it or not.

hasm_747 said:
The Turbo have band 3, which should be compatible with 3 and EE, BUT I think it is carrier locked to Verizon and I am not sure if you can unlock it or not.
Click to expand...
Click to collapse
Awesome! Thanks! Moto X is my choice

[Q] Changing/Adding LTE bands?

Hi All!!
Was just wondering if it is at all possible to replace or add/unlock additional LTE bands on our AHD?
As it stands now: ATRIX HD has the following bands and frequencies: LTE 700 and 1700 / 2100 (Bands 4, 17). Both USA.
The problem is LTE was introduced quite recently here in Pakistan and the frequency/band they are using is 1800MHz (Band 3, I believe?). So I can use 3G internet with my AHD but not the LTE.
Now as our phone is also based on the MSM8960 chipset, I did a quick research to see what other MSM8960 chipset phones have in terms of LTE bands. Quite a few do have the 1800MHz freq I need.
RAZR HD: LTE 800 / 1800 / 2600 (Bands 3, 7, 20)
RAZR HD XT925: LTE 700 (Band 13)
RAZR M XT905: LTE 1800 / 2600 (Bands 3, 7)
Photon Q XT897:LTE 1900 (Band 25)
HTC Windows 8X:LTE 700 / 850 / 1700 / 1900 / 2100 (Bands 2, 4, 5, 17) - AT&T
BB Z10:LTE 800 / 900 / 1800 / 2600 (Bands 3, 7, 8, 20) - STL100-2
And I did visit the official Qualcomm page and they say the MSM8960 has "world/multimode" LTE.
Now my question is are we limited by hardware or software?
And this is where I need help understanding the following link:
1) Look at Page 3 of the following PDF file. This shows a complete hardware breakdown of our AHD phone. It shows the various PA (Power Amps) and other components the phone has as well as how data flows. According to this, is our phone limited by hardware to just the bands we have now or is it possible to unlock new bands and use them?
http://www.techinsights.com/uploadedFiles/Public_Website/Content_-_Primary/Marketing/2013/techinsights-motorola-atrix-hd-mb886.pdf
Also the following photo proves that the RTR8600 transceiver on our AHD is capable of LTE @ 1800MHz (Look at 4th Gen column): http://images.anandtech.com/doci/6541/IAR Summit Nov 2012_Serge_Jim_Page_20.png
If not limited by hardware. Has anyone heard of a software called "Qualcomm Prod Support Tool" I ask this because I came across "QPST?" which claims to unlock the bands on Qualcomm processors. While keeping the existing bands unharmed.
This link shows how to use QPST:
2) http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
Also found a thread about QPST WRT Samsung S5:
3) http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
So.
1. Has anyone here ever used QPST or know of any other method to unlock bands (if at all possible)?
2. Can we just flash modem firmware (baseband) from another MSM8960 phones to enable LTE frequencies on AHD? Asking this as CM11 for MSM8960 works on all devices and hardware of all the MSM8960 phones (similar drivers?)
Any and all help/guidance on the matter will be greatly appreciated as my other alternative is replacing the phone I bought not 6 months ago. Also I know of all the legal concerns on this matter as I am not in EU or US I believe I am at little risk of FCC coming after me My point is, please add useful and knowledgeable replies to this thread concerning the topic at hand instead of telling me FCC or AT&T will catch me..
I'm currently rooted with Phil'z Touch recovery(unlocked BL) and CM11. Phone is not locked to AT&T.
Thanks in advance!

theenlightened1 said:
Hi All!!
Was just wondering if it is at all possible to replace or add/unlock additional LTE bands on our AHD?
As it stands now: ATRIX HD has the following bands and frequencies: LTE 700 and 1700 / 2100 (Bands 4, 17). Both USA.
The problem is LTE was introduced quite recently here in Pakistan and the frequency/band they are using is 1800MHz (Band 3, I believe?). So I can use 3G internet with my AHD but not the LTE.
Now as our phone is also based on the MSM8960 chipset, I did a quick research to see what other MSM8960 chipset phones have in terms of LTE bands. Quite a few do have the 1800MHz freq I need.
RAZR HD: LTE 800 / 1800 / 2600 (Bands 3, 7, 20)
RAZR HD XT925: LTE 700 (Band 13)
RAZR M XT905: LTE 1800 / 2600 (Bands 3, 7)
Photon Q XT897:LTE 1900 (Band 25)
HTC Windows 8X:LTE 700 / 850 / 1700 / 1900 / 2100 (Bands 2, 4, 5, 17) - AT&T
BB Z10:LTE 800 / 900 / 1800 / 2600 (Bands 3, 7, 8, 20) - STL100-2
And I did visit the official Qualcomm page and they say the MSM8960 has "world/multimode" LTE.
Now my question is are we limited by hardware or software?
And this is where I need help understanding the following link:
1) Look at Page 3 of the following PDF file. This shows a complete hardware breakdown of our AHD phone. It shows the various PA (Power Amps) and other components the phone has as well as how data flows. According to this, is our phone limited by hardware to just the bands we have now or is it possible to unlock new bands and use them?
http://www.techinsights.com/uploade...2013/techinsights-motorola-atrix-hd-mb886.pdf
Also the following photo proves that the RTR8600 transceiver on our AHD is capable of LTE @ 1800MHz (Look at 4th Gen column): http://images.anandtech.com/doci/6541/IAR Summit Nov 2012_Serge_Jim_Page_20.png
If not limited by hardware. Has anyone heard of a software called "Qualcomm Prod Support Tool" I ask this because I came across "QPST?" which claims to unlock the bands on Qualcomm processors. While keeping the existing bands unharmed.
This link shows how to use QPST:
2) http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
Also found a thread about QPST WRT Samsung S5:
3) http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
So.
1. Has anyone here ever used QPST or know of any other method to unlock bands (if at all possible)?
2. Can we just flash modem firmware (baseband) from another MSM8960 phones to enable LTE frequencies on AHD? Asking this as CM11 for MSM8960 works on all devices and hardware of all the MSM8960 phones (similar drivers?)
Any and all help/guidance on the matter will be greatly appreciated as my other alternative is replacing the phone I bought not 6 months ago. Also I know of all the legal concerns on this matter as I am not in EU or US I believe I am at little risk of FCC coming after me My point is, please add useful and knowledgeable replies to this thread concerning the topic at hand instead of telling me FCC or AT&T will catch me..
I'm currently rooted with Phil'z Touch recovery(unlocked BL) and CM11. Phone is not locked to AT&T.
Thanks in advance!
Click to expand...
Click to collapse
Yes it is possible to do what you are looking to do.
Original thread link - http://forum.xda-developers.com/showthread.php?p=55321005
Modified Motorola instructions - http://forum.xda-developers.com/showthread.php?p=57305360
Sent from my RAZR-ATRIX HD using XDA Free mobile app

palmbeach05 said:
Yes it is possible to do what you are looking to do.
Original thread link - http://forum.xda-developers.com/showthread.php?p=55321005
Modified Motorola instructions - http://forum.xda-developers.com/showthread.php?p=57305360
Sent from my RAZR-ATRIX HD using XDA Free mobile app
Click to expand...
Click to collapse
Thanks for the quick response and the links :good: Will check them out...
Have you tried doing this yourself? or have first hand knowledge? can I get back to you if I have questions?
Cheers!! :fingers-crossed:

theenlightened1 said:
Thanks for the quick response and the links :good: Will check them out...
Have you tried doing this yourself? or have first hand knowledge? can I get back to you if I have questions?
Cheers!! :fingers-crossed:
Click to expand...
Click to collapse
Yes i have tried it, i actually activated all bands. And yes, i am available for questions
Sent from my RAZR-ATRIX HD using XDA Free mobile app

Hmm...
Enabling of additional LTE bands has failed so far on xt897 (Photon Q).
If you're interested to see what has been tried so far, see this thread http://forum.xda-developers.com/showthread.php?t=2275748
You should pay special attention to the research done by stargo - his posts in the second half of the thread and the link to his utility source...

kabaldan said:
Hmm...
Enabling of additional LTE bands has failed so far on xt897 (Photon Q).
If you're interested to see what has been tried so far, see this thread http://forum.xda-developers.com/showthread.php?t=2275748
You should pay special attention to the research done by stargo - his posts in the second half of the thread and the link to his utility source...
Click to expand...
Click to collapse
I don't have the Photon Q, but it is always good to have feedback on other msm8960 devices. I'll check the link out in a sec
EDIT: Has anyone with the Photon Q tried the steps in the link above?
Sent from my RAZR-ATRIX HD using XDA Free mobile app

kabaldan said:
Hmm...
Enabling of additional LTE bands has failed so far on xt897 (Photon Q).
If you're interested to see what has been tried so far, see this thread http://forum.xda-developers.com/showthread.php?t=2275748
You should pay special attention to the research done by stargo - his posts in the second half of the thread and the link to his utility source...
Click to expand...
Click to collapse
Thank you for the info :good:..
I just checked the links and he is failing and the modem keeps crashing but Photon Q has just the one band 25 activated by default? Maybe Moto and Sprint have a thing going there where they limited the hardware to keep the price down and prevent customer from taking their phone to rival networks?
AHD is also used by Bell in Canada I believe.. and they also use band 7 in addition to AT&T's bands 4 and 17? So their might be some hardware in AHD to use the additional bands? Of course this is all my guess work.. however..
@palmbeach05 said that he has successfully activated all bands.. I hope it was for AHD and that he got a chance to test them out That makes me think we have different hardware to Photon Q and gives me hope it would work for me too if it worked for another user?

Look the following link: http://www.comparecellular.com/cell-phones/motorola-atrix-hd-lte/specifications.asp
It lists Bell's variant of AHD capable of ONLY Band 7 for LTE... while in the US they enabled Bands 4 and 17 for AT&T? If this is accurate then we have hardware limited by firmware/software.. and additional bands could be unlocked?
I just need Band 3.. don't mind blocking the rest if that makes the device more stable as I don't travel a whole lot..

AT&T specs on the Atrix HD MB886 -
AFAIK it should be LTE (700 (band 17)) / (1700/ 2100 (band 4)) .
Band 4 is AWS which uses both 1700 & 2100 for up/down but is just referred to by 1700.
Bell LTE bands (from Wikipedia) are 700b (band 17), 1700 (band 4), 2600 (band 7).
From research it seems Bell Canada had 1700 (AWS band 4) up and running in 2011 and then got 2600 (band 7) up and running in July 2012 - the exact time frame they launched the Atrix HD.
While they (Bell) didn't get any 700b (band 17) until they launched last year - 2014.
So it would seem that the HD was indeed running on 2600 when launched by Bell IMO.
I'm quite sure that if @palmbeach05 said he had all bands working then he did.
theenlightened1 said:
Look the following link: http://www.comparecellular.com/cell-phones/motorola-atrix-hd-lte/specifications.asp
It lists Bell's variant of AHD capable of ONLY Band 7 for LTE... while in the US they enabled Bands 4 and 17 for AT&T? If this is accurate then we have hardware limited by firmware/software.. and additional bands could be unlocked?
I just need Band 3.. don't mind blocking the rest if that makes the device more stable as I don't travel a whole lot..
Click to expand...
Click to collapse

Yeah a lot of conflicting data online... thanks for correcting me on the Bell bands..
Tim3tripp3r said:
I'm quite sure that if @palmbeach05 said he had all bands working then he did.
Click to expand...
Click to collapse
Waiting for confirmation from him on whether he got this done for AHD or another MSM8960 phone...

1. I think that the biggest battle is getting the PC, software & HD all on the same page - If you know what I mean. Once you get the software to recognize the HD in the correct way your mostly done. I started to do this but had issues and thought I'd save it for another day.
2. I know that Qualcomm regretted leaving the MSM8960 open to DIY reprogramming as they soon updated how they did things - none of their later model chips have this ability.
3. There are some handy programs on the Play Store for computing the NV values
See----->>>> Qualcomm NV Calculator & LTE Band Calculator
4. If you succeed please keep us posted TIA

Tim3tripp3r said:
AT&T specs on the Atrix HD MB886 -
AFAIK it should be LTE (700 (band 17)) / (1700/ 2100 (band 4)) .
Band 4 is AWS which uses both 1700 & 2100 for up/down but is just referred to by 1700.
Bell LTE bands (from Wikipedia) are 700b (band 17), 1700 (band 4), 2600 (band 7).
From research it seems Bell Canada had 1700 (AWS band 4) up and running in 2011 and then got 2600 (band 7) up and running in July 2012 - the exact time frame they launched the Atrix HD.
While they (Bell) didn't get any 700b (band 17) until they launched last year - 2014.
So it would seem that the HD was indeed running on 2600 when launched by Bell IMO.
I'm quite sure that if @palmbeach05 said he had all bands working then he did.
Click to expand...
Click to collapse
Just woke up for the day. Yes i did do that unlocking method for the AHD. To check what bands are available, hit *#*#4636#*#* and go to phone info and the three dot menu in the upper right hand corner. You are able to select preffered bands in this menu, which will allow you to make it a global phone instead of just LTE. I'm in the US, so i can only vouch for ATT bands. I haven't tried switching my apns and service to TMobile to check if they are up and running too, but i think i might do that later on today to test it out.
NOTE - Global sticks all the time, including on reboots, when selected while using CM11. CM12 is having issues on that at the moment
theenlightened1 said:
Yeah a lot of conflicting data online... thanks for correcting me on the Bell bands..
Waiting for confirmation from him on whether he got this done for AHD or another MSM8960 phone...
Click to expand...
Click to collapse
Sent from my RAZR-ATRIX HD using XDA Free mobile app

palmbeach05 said:
Just woke up for the day. Yes i did do that unlocking method for the AHD. To check what bands are available, hit *#*#4636#*#* and go to phone info and the three dot menu in the upper right hand corner. You are able to select preffered bands in this menu, which will allow you to make it a global phone instead of just LTE. I'm in the US, so i can only vouch for ATT bands. I haven't tried switching my apns and service to TMobile to check if they are up and running too, but i think i might do that later on today to test it out.
NOTE - Global sticks all the time, including on reboots, when selected while using CM11. CM12 is having issues on that at the moment
Sent from my RAZR-ATRIX HD using XDA Free mobile app
Click to expand...
Click to collapse
Thanks again.. I have no problem sticking to CM11 if it works.. I tried the latest nightly of CM12 last week and my games kept hanging and crashing so I reverted back to CM11.. I'll get an LTE sim in a day or two and then unlock the bands.. be ready for some questions regarding the unlock process

theenlightened1 said:
Thanks again.. I have no problem sticking to CM11 if it works.. I tried the latest nightly of CM12 last week and my games kept hanging and crashing so I reverted back to CM11.. I'll get an LTE sim in a day or two and then unlock the bands.. be ready for some questions regarding the unlock process
Click to expand...
Click to collapse
You can actually unlock the bands now if you want, this method deals with the radio/modem, not the sim card
Sent from my RAZR-ATRIX HD using XDA Free mobile app

theenlightened1 said:
Thank you for the info :good:..
I just checked the links and he is failing and the modem keeps crashing but Photon Q has just the one band 25 activated by default? Maybe Moto and Sprint have a thing going there where they limited the hardware to keep the price down and prevent customer from taking their phone to rival networks?
AHD is also used by Bell in Canada I believe.. and they also use band 7 in addition to AT&T's bands 4 and 17? So their might be some hardware in AHD to use the additional bands? Of course this is all my guess work.. however..
@palmbeach05 said that he has successfully activated all bands.. I hope it was for AHD and that he got a chance to test them out That makes me think we have different hardware to Photon Q and gives me hope it would work for me too if it worked for another user?
Click to expand...
Click to collapse
Update regarding band 17 - I am not seeing it pop up in my menu of bands i can select in the *#*#4636#*#* menu. I have not tried a different device's modem yet, nor have I tried what Kablan was talking about in his post regarding the Photon Q.
---------- Post added at 02:37 AM ---------- Previous post was at 02:23 AM ----------
theenlightened1 said:
Thanks again.. I have no problem sticking to CM11 if it works.. I tried the latest nightly of CM12 last week and my games kept hanging and crashing so I reverted back to CM11.. I'll get an LTE sim in a day or two and then unlock the bands.. be ready for some questions regarding the unlock process
Click to expand...
Click to collapse
Update - Global finally sticks on 3/10 builds. It must have gotten fixed with all those commits that got pushed out between 3/4 and 3/10 builds

Sorry for not being able to respond for a while.. the week's been crazy and sadly this one looks to be following the same pattern.
So.. I didn't get a chance to try anything out as yet coz of several reasons..
First I lost my phone and thank God there are still good people left on this Earth coz one of them attended my call and brought it back to me!
Secondly my mobile operator is giving me a headache getting that LTE enabled sim.. so waiting for that.. and one top of that I've been busy..
So I apologise but please know that I've not given up on this and will give this a shot soon..

palmbeach05 said:
Update - Global finally sticks on 3/10 builds. It must have gotten fixed with all those commits that got pushed out between 3/4 and 3/10 builds
Click to expand...
Click to collapse
Is that CM11 or CM12? I have CM11.. build 11/12 (that's Nov 12, 2014 of course).. hope this works on it.. I have a Windows 8.1 laptop but also have an old P4 desktop PC running Win XP.. I have downloaded "EFS_Professional_2.1.80_BETA.zip" and "Unlock_bands_of_your_qualcomm_device!.zip" which contains "QPST" and "mzTools".. I'm trying to make sure I understand the instructions perfectly before I take a single step.. will ask you for help if need be.. thanks!

Wanted to ask.. I found a couple of more forum posts describing what to do..
1) https://forums.oneplus.net/threads/...-qualcomm-devices-oneplus-one-edition.193610/
2) http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
Could someone please have a read and see if these are following the same steps as the links @palmbeach05 shared earlier on..
Thanks!

theenlightened1 said:
Is that CM11 or CM12? I have CM11.. build 11/12 (that's Nov 12, 2014 of course).. hope this works on it.. I have a Windows 8.1 laptop but also have an old P4 desktop PC running Win XP.. I have downloaded "EFS_Professional_2.1.80_BETA.zip" and "Unlock_bands_of_your_qualcomm_device!.zip" which contains "QPST" and "mzTools".. I'm trying to make sure I understand the instructions perfectly before I take a single step.. will ask you for help if need be.. thanks!
Click to expand...
Click to collapse
CM11 is fine, haven't been on that old of a build for a while. I'm on CM12 right now. The global thing works on both 11 and 12
Sent from my RAZR-ATRIX HD using XDA Free mobile app

theenlightened1 said:
Wanted to ask.. I found a couple of more forum posts describing what to do..
1) https://forums.oneplus.net/threads/...-qualcomm-devices-oneplus-one-edition.193610/
2) http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
Could someone please have a read and see if these are following the same steps as the links @palmbeach05 shared earlier on..
Thanks!
Click to expand...
Click to collapse
Link #1 is OPO's steps for what I have shared. Link #2 is something i recently discovered and haven't tried. I have the day off so i can test it out and provide feedback, but its now 3 am, i've was sleeping for about 10 hrs before my last post, and the only thing on my mind right now is food lol
UPDATE #1 - After wiping modemst1 and modemst2, I attempted the unlocking of bands by editing line 1877. This method is as effective as doing it the other way with the steps that I provided.
UPDATE #2 - Editing line 441 to reflect 0xFFFF works as well, no issues to report.
UPDATE #3 - Editing line 946 to reflect 0xFFFF works, no issues. Editing line 2954 creates issues. Looking into lines 6828 and 6829 now.
Sent from my RAZR-ATRIX HD using XDA Free mobile app

Bands

Besides the usual band 2 4 and 12 what else does the tmobile version support

PunishedSnake said:
Besides the usual band 2 4 and 12 what else does the tmobile version support
Click to expand...
Click to collapse
all info can be found here:
http://forum.xda-developers.com/tmo...t-information-htc-usa-t-t3067611#post60060245
to answer your question:
LTE-A Bands 2 (1900), 3 (1800), 4 (1700/2100), 7 (2600), 12 (700), 17 (700)

Unlock LTE bands step by step - XIaomi Mi Note specific

I bought a Xiaomi Mi Note LTE (Dual Sim) from China recently but cannot use LTE 4G in the UK.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It turned out that Mi Note LTE (Dual Sim) support LTE B3 and B7 (The international version supports B1 and B3)
But my carrier Vodafone UK rolled out LTE throughout the courtry with band 20 (800Mhz) but LTE Band 7 is only available for 3 cities at the moment. ( Only EE and Three support B3/B7, which is the reason I cannot see 'Vodafone 4G' and 'O2 4G' but 'EE 4G' and 'Three 4G' in the network list. source, source, source)
So I tried the guides: here, here, here and here to unlock B20 on my phone. (Many thank to @BlackSoulxxx, @fffft, @olokos, @devilsshadow and @Albirew)
I went through all the steps and set the value into 6828 (and even 6829) permanently but still cannot see 'Vodafone UK 4G' or 'O2 UK 4G' on the network list.
I googled a lot but still couldn't find the solution.
I found others who have Xiaomi Mi Note or Redmi have the same problem and want to unlock different LTE bands. But some of them stuck in the middle of the steps especially the prerequisites and couldn't go through. Maybe unlocking other LTE bands is working for them. So I decided to write the step by step guide and hopefully throw out a brick to attract a jade.
The lawyers made us do it.
We have to post an obligatory warning.
We don't think that this mod will cause you any problems. But we can't guarantee that. I never tried it on devices other than Mi Note LTE (dual sim).
You assume all risks if you proceed, including the risk that your phone might object, meltdown, brick or void your warranty.
Let's start
1. Root your device.
2. enable diag mode by entering *#*#717717#*#* on the dialer and download the driver from here (thank @m11kkaa).
Once diag mode enabled, you can see the Device Manager from PC like this:
then right click the first 'MI NOTE LTE' and install the driver you just downloaded
you will see this if successful
3. Download and install QPST
4. Download and install QXDM
5. Open the "QPST Configuration" program, you should see below straightaway:
You couldn't see this until you finished step 2 successfully
6. Now select the QPST Start Clients > Software download > Backup > Start. Wait until the status says 'memory backup completed'. This saves a backup copy of your phone's stock NV memory to your computer in case you need it later.
7. Leave QPST open and navigate to the C:\Program Files (x86)\Qualcomm\QXDM\Bin folder. And right click on QXDM.exe > run as administrator.
8. Go to options -> communications
Target port -> select COM6, then OK
9. select Nv Browser from view
10. select LTE from Category Filter, then you can see 06828 and 06829
11. click on line 06828 (lte_bc_config); click the Read button, save somewhere the original value in case something goes wrong (inside notepad or anything), the original value on my device is 2061584302148
12. Let's talk more about the value, source
in my case, the value for 06828 is 2061584302148, using Calculator (programmer mode) to change it to binary value is
11110000000000000000000000000000001000100
from right to left, the 3rd, 7th, 38, 39, 40,41 bit are 1, which means band 3/7/38/39/40/41 are enabled
I want to enable band 20 so change the 20th bit to 1
11110000000000000000010000000000001000100
the corresponding Dec value is 2061584826436
13. click on line 06828 (lte_bc_config); click the Read button, replace Input value with 2061584826436 (please don't be an idiot and don't edit the empty one with "ext" in the name) and click on Write button
OK THAT IS IT. Restarted Mi Note, and then see if the value set permanently.
BUT LTE BAND 20 IS STILL NOT UNLOCKED.
I changed the value to 2061584826368 which is
11110000000000000000010000000000000000000
Disable B3 and B7 to see if the value is working, It worked, I cannot see EE 4G and Three 4G any more.
let me know if anyone unlocks other bands
ps: don't forget to disable diag mode by entering *#*#717717#*#* on the dialer.
DID I MISS ANYTHING?!
and thanks in advance for any idea.
Thanks @BlackSoulxxx, @fffft, @olokos, @devilsshadow,
@Albirew and @m11kkaa anyway even if I couldn't unlock Mi Note, I had a lot fun playing it.

how do u calculate the NV value for 6828? in my case i needed band: 1, 2, 3, 4, 7, 38, 39, 40, 41. could u get the value for me? thankyou

blackysan said:
how do u calculate the NV value for 6828? in my case i needed band: 1, 2, 3, 4, 7, 38, 39, 40, 41. could u get the value for me? thankyou
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=tw.rmstudio.mt.android.ltebandcalculator
I use a different one but I couldn't find it on the play store anymore. May have gotten lawyer thumped.

blackysan said:
how do u calculate the NV value for 6828? in my case i needed band: 1, 2, 3, 4, 7, 38, 39, 40, 41. could u get the value for me? thankyou
Click to expand...
Click to collapse
band 1, 2, 3, 4, 7, 38, 39, 40, 41 would be:
2061584302159
(binary value: 11110000000000000000000000000000001001111)
what's your original value?

Coug76 said:
https://play.google.com/store/apps/details?id=tw.rmstudio.mt.android.ltebandcalculator
I use a different one but I couldn't find it on the play store anymore. May have gotten lawyer thumped.
Click to expand...
Click to collapse
I used Nv Calculator
https://play.google.com/store/apps/details?id=org.vndnguyen.nvcalc
And found out Calculator is good enough in my case.

GeorgeZZzz said:
I used Nv Calculator
https://play.google.com/store/apps/details?id=org.vndnguyen.nvcalc
And found out Calculator is good enough in my case.
Click to expand...
Click to collapse
Hello,
I need to unlock just one band on my Redmi Note, band 20. I don't have a Mi Note, I have the cheaper more affordable option the Redmi Note 4G.
However, I know this trick will work on it, it's a similar Snapdragon chipset, I just haven't tried it yet, as I'd love some advice before diving in.
Currently, my phone has:
FDD-LTE (1800/2100MHz) & TDD-LTE (2600MHz)
So basically, that's band
2100Mhz - Band 1
1800Mhz - Band 3
2600Mhz - Band 7
I'm on Three UK, which only has 2 bands on it's current spectrum,
Band 3 and Band 20, which of course is 800 and is NOT unlocked by this phone.
Is it possible to unlock Band 20, without losing other bands. I only need Band 3, and Band 20, and I'll have full 4G support.

10000000000000000000000000000000000000101
Yikes, this is my binary. Which is more confusing than ever. I get that it's little endian, so that means left to right, 101 that's 1 and 3. I'm confused though why Band 7 hasn't got a bit and what the very last bit refers to in my case.
---------- Post added at 01:41 PM ---------- Previous post was at 01:33 PM ----------
OK. I think I've found my mistake. Apparently, it supports Band 3 and Band 40. So maybe not Band 7 after all. This would make sense.
Band 1
Band 3
Band 40
I'll work it out for sure now
---------- Post added at 01:50 PM ---------- Previous post was at 01:41 PM ----------
Balls
10000000000000000000000000000000000000101
There's 41 characters there. That's now messed up my head because surely that means it supports Band 1 and 3 and 41, not 40. I'll continue to work on this.
---------- Post added at 02:00 PM ---------- Previous post was at 01:50 PM ----------
Nope. I was right. I downloaded LTE Band Calculator off the Play Store, and 1 3 and 41 = 1099511627781, the number in my NV RAM.
What the hell is going on!!? I've read this phone supports 1, 3, 7, then it was 1, 3, 38, then 1, 3, 40... Now my NVRAM tells me it's 1, 3, 41.
Christ almighty. Apparently, band 41 is accessible from devices with Band 38 unlocked, but that doesn't make sense because India is running on Band 40.
Seriously, getting, pissed, off.

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

what is the device code? mine HM Note 1S CU KHKCNBL.

Bad news, looks like you can't unlock band 20 OnePlus One users found this out. Perhaps you can't unlock band 20.
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455

You did a great job on this tutorial with a load of screens.
Have you considered there may be hardware limitation concerning LTE20 ?

Albirew said:
You did a great job on this tutorial with a load of screens.
Have you considered there may be hardware limitation concerning LTE20 ?
Click to expand...
Click to collapse
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....
---------- 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.

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?

skezza said:
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....
---------- 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.
Click to expand...
Click to collapse
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).

Albirew said:
You did a great job on this tutorial with a load of screens.
Have you considered there may be hardware limitation concerning LTE20 ?
Click to expand...
Click to collapse
skezza said:
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....
---------- 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.
Click to expand...
Click to collapse
blackysan said:
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?
Click to expand...
Click to collapse
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.

GeorgeZZzz said:
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.
Click to expand...
Click to collapse
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 ----------
GeorgeZZzz said:
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.
Click to expand...
Click to collapse
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"…

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.

skezza said:
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.
Click to expand...
Click to collapse
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.

I'm not even aware there was a Global version and a HK version

Xiaomi Redmi Note 4G LTE band unlock - Tutorial
Thank you very much for this wonderful detailed explaination, @GeorgeZZzz. 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. 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 @GeorgeZZzz for making it easier with your "tutorial". :good:

[Q] N920C vs N920i

Anyone managed to understand what is the difference between these two unlocked models?

benyben123 said:
Anyone managed to understand what is the difference between these two unlocked models?
Click to expand...
Click to collapse
*2.5G (EDGE, GSM/GPRS ) MHz:850, 900, 1800, 1900 3.5G (HSPA+, UMTS/WCDMA ) MHz:850, 900, 1900, 2100 4G (LTE ) Bands:1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 40 = I variant
*2.5G (EDGE, GSM/GPRS ) MHz:850, 900, 1800, 1900 3.5G (HSPA+, UMTS/WCDMA ) MHz:850, 900, 1900, 2100 4G (LTE ) Bands:1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26 = C variant

megatooth said:
*2.5G (EDGE, GSM/GPRS ) MHz:850, 900, 1800, 1900 3.5G (HSPA+, UMTS/WCDMA ) MHz:850, 900, 1900, 2100 4G (LTE ) Bands:1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 40 = I variant
*2.5G (EDGE, GSM/GPRS ) MHz:850, 900, 1800, 1900 3.5G (HSPA+, UMTS/WCDMA ) MHz:850, 900, 1900, 2100 4G (LTE ) Bands:1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26 = C variant
Click to expand...
Click to collapse
Very small different then in terms of bands.
THANK YOU!!!
It seems I can purchase either then
Hmm.... although now I see there's a N920 model as well. Probably different LTE bands as well.....

Yes, first the N920C did get the marshmallow update, also your going to get Samsung pay, but your going to get carrier bloat ware homever you can disable it with package disabler pro. Also you get better reception in USA and Canada. N930I comes without any Carrier bloat ware, you have better reception in Asia or Oceania . Also you may get a bit better battery life (a bit noticeable).
Sent from my SM-N920I using Tapatalk

Hey,
Just doing a bit of research. Wanted to get an unlocked version either the N920C or N920I so I can use it on AT&T.. I would get the AT&T variant but I hate carrier branded/modified software and additional bloat.. From what I'm understanding, either should be fine but the C variant comes with bloat correct? I've seen a lot of people using the N920I model and have had no issues and says it works great.. What carrier are you on?
jonnyszt said:
Yes, first the N920C did get the marshmallow update, also your going to get Samsung pay, but your going to get carrier bloat ware homever you can disable it with package disabler pro. Also you get better reception in USA and Canada. N930I comes without any Carrier bloat ware, you have better reception in Asia or Oceania . Also you may get a bit better battery life (a bit noticeable).
Sent from my SM-N920I using Tapatalk
Click to expand...
Click to collapse

XavierD8188 said:
Hey,
Just doing a bit of research. Wanted to get an unlocked version either the N920C or N920I so I can use it on AT&T.. I would get the AT&T variant but I hate carrier branded/modified software and additional bloat.. From what I'm understanding, either should be fine but the C variant comes with bloat correct? I've seen a lot of people using the N920I model and have had no issues and says it works great.. What carrier are you on?
Click to expand...
Click to collapse
My network is a Canadian one called telus. And works ok, some low reception from time to time (3G) and also the c model got marshmallow something that the I model didn't get.
Sent from my SM-N920I using Tapatalk

Cool, thanks.. Gonna open a thread and see if anyone has experience with either on AT&T
jonnyszt said:
My network is a Canadian one called telus. And works ok, some low reception from time to time (3G) and also the c model got marshmallow something that the I model didn't get.
Sent from my SM-N920I using Tapatalk
Click to expand...
Click to collapse

XavierD8188 said:
Cool, thanks.. Gonna open a thread and see if anyone has experience with either on AT&T
Click to expand...
Click to collapse
Go ahead no one is stopping you (except for admin)
Sent from my SM-N920I using Tapatalk