Help with adding LTE band 2 (1900 mhz) - Verizon HTC One (M8)

Hi guys,
So... basically I want to add the LTE band 2 (1900 mhz) since my carrier here in México (Movistar) uses that band. ( I cannot change my carrier since the sim belongs to my employer )
The long story is this:
For a long time I've been trying to get the LTE signal working on my M8 testing several ROMs, but I just discovered (a couple of weeks ago) that this won't be possible since the verizon M8 doesn't have that band enabled.
Based on that, I gave up and installed the NuSenSeveN ROM to check if it was possible to use another carrier's LTE service here in México. So... with this ROM, I was able to use Telcel's LTE band (4 - 1700 mhz) just by using one of this carrier's chip. With that in mind I'm thinking on selling this device to someone who has a contract with this carrier and buy a new phone that have my carrier's LTE band enabled.
But... something in my mind wanted to do the last attempt and searching I found the post about adding disabled bands to all Qualcomm devices, and optimistic as my mind is... here I am thinking that it may be possible to keep my m8 and being able to use my carrier's LTE service!!!
I know this is no easy task and that I should do everything I can to try to test this on my own, but since I found the post for adding bands for Qualcomm devices I've read almost the whole thread.. in almost a week now, and I haven't been able to do any progress on the matter so... I really hope someone with expertise can help me.
I also know no one here helps thinking about money but I know I'm not asking for something easy, probably its not even possible, ( I also know there are no guaranties that anything will work for sure)... so I'm willing to donnate for the help. I don't know if it's is forbidden to ask for this in xda, if it is, please let me know, I'll delete this post and restrain myself from doing the same in the future.
So, I'll explain the situation,
I've reviewed the main post about this matter here in xda,
http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
And similar posts like these:
http://forum.xda-developers.com/verizon-htc-one-m8/general/lte-band-7-2600mhz-finally-guide-t2992523
http://forum.xda-developers.com/verizon-htc-one-m8/help/assistant-unlocking-lte-bands-t3213956
Basically from those posts I was trying to follow @regspy steps.. but I've had troubles with adb (I'm on Windows 10) and I've tried to install several drivers but all I've tried keeps giving me the "offline" result with the "adb devices" command, so I'm not able to go any further.
And here I am hoping someone can help me trough Team Viewer, if someone can help me please tell me, or if someone knows for sure this is not possible it'll also help me to quit on this task haha.
Thanks in advance.
PS. This is my M8's current state
This is my bootloader screen:
https://drive.google.com/file/d/0BwRKcAC_V-OsTEw0d2ZmYml4b1E/view?usp=sharing
Also, I'm currently running the next ROM:
NuSenSeveN_Marshmallow_M8vzw_v2.0_0102216

Related

HTC Pro 3G connection problems

I may get flamed for this but I did try and search the WIKI and the Raphael forum. I just purchased an HTC Touch Pro as someone threw me in a pool with my Kaiser still attached to me. I got it through Expansys which I believe is a company in the UK. When I turned it on I saw I was only getting the EDGE network. After doing some research now I see that I may have messed up and I may not be able to connect to the 3G network here in North America. Is this true? Can someone PLEASE confirm this for me? Is there a new ROM I can install or a radio upgrade that will allow this phone to connect to AT&T's service here in the US? PLEASE PLEASE PLEASE let me know. This phone is badass and is a huge improvement on the Kaiser. I'd love to get it to work, but the internet speed is the most important thing to me as I'm a systems engineer and tether with it almost daily for work. I hope someone can give me a definitive answer on whether or not I should send this beauty back. Thanks ahead of time for any input whatsoever!
definitive answer: NO
no 3g in USA on at&t or t-mobile
only way is to wait for the FUZE
htc said its not software its hardware!
sorry i know it sux but if u can return it and wait for the fuze, go ahead!
Aaaaaaaaaaa!!!!!!!!!!
That suuuuuucks! Well, thanks for your quick reply. I guess I'm going to have to see what I can do about returning this thing. Any idea what the ETA on the Fuze is?
Once again, I really appreciate your help. I've been slammed here at work so I haven't had a chance to do the research that I would normally do. I especially appreciate your definitive answer
The Fuze should be released in the next few weeks. The exact date is not known. But by the end of November is almost a guarantee.
Thanks to all!!!
Thanks again. I guess I'll wait for the Fuze. From the pics it looks like they did the same thing as with the Kaiser and removed the front camera for video phone. I guess AT&T is worried about bandwidth issues if everyone starts making video calls. Funny thing is, most people here in North America believe very strongly that we are the most technologically advanced country in the world, yet we can't seem to even compete with other countries, including third world countries like South Africa, on many things including cell phones and reception.
http://forum.xda-developers.com/showthread.php?t=420865
check this thread,complete coverage of the issue...
All post from viper are particulary informative. Still a little bit of hope...
Well AT&T isn't even setup to handle video calls (afaik), so I don't think it's something they're "worried" about.
Awesome labbbby!
Don't know why I couldn't find that thread earlier. It's exactly what I was looking for. I guess I'll wait a liiiiiittle bit. I don't want to part with this thing. Besides, I'm addicted to that damn teeter game.
lokibjensen said:
I may get flamed for this but I did try and search the WIKI and the Raphael forum. I just purchased an HTC Touch Pro as someone threw me in a pool with my Kaiser still attached to me. I got it through Expansys which I believe is a company in the UK. When I turned it on I saw I was only getting the EDGE network. After doing some research now I see that I may have messed up and I may not be able to connect to the 3G network here in North America. Is this true? Can someone PLEASE confirm this for me? Is there a new ROM I can install or a radio upgrade that will allow this phone to connect to AT&T's service here in the US? PLEASE PLEASE PLEASE let me know. This phone is badass and is a huge improvement on the Kaiser. I'd love to get it to work, but the internet speed is the most important thing to me as I'm a systems engineer and tether with it almost daily for work. I hope someone can give me a definitive answer on whether or not I should send this beauty back. Thanks ahead of time for any input whatsoever!
Click to expand...
Click to collapse
So you spend God-knows-how-much on a device without researching it well enough in the first place. Wow.
Well unlocked GSM Touch Pros use 3G on the 2100mhz freq (European) and U.S 3G is on the 850/1900mhz freq (T-mobile chose the 1700mhz route..don't ask why).
Send it back and wait for the U.S version which is branded through ATT as the Fuze.
I should have said, "almost all input is welcome"
LordLugard said:
So you spend God-knows-how-much on a device without researching it well enough in the first place. Wow.
Well unlocked GSM Touch Pros use 3G on the 2100mhz freq (European) and U.S 3G is on the 850/1900mhz freq (T-mobile chose the 1700mhz route..don't ask why).
Send it back and wait for the U.S version which is branded through ATT as the Fuze.
Click to expand...
Click to collapse
I know I said I welcome ANY input. I didn't really expect the sarcasm though. I'm in the middle of moving our offices and being that I'm the IT director it's pretty demanding. I have owned the 8125 (Wizard), the 8525 (Hermes), and the 8925 (Kaiser) before this one. When my Kaiser got ruined I was forced to replace it ASAP because I need instant email/contacts/calendar, tethering, and I use it as my GPS. I figured instead of shelling out $400-$500 for a new Kaiser quickly, I may as well add a couple hundred more and get an upgrade. My mistake I guess. Normally I'm more careful but under these circumstances I didn't have the luxury. I guess thanks for the input anyway. Next time try and be a little nicer to strangers.
Interesting change
While looking at what exactly I had purchased from Expansys I saw that they touted the phone as being, "Quad-band GSM/GPRS/EDGE: 850/900/1800/1900 MHz (Band frequency and data speed are operator dependent)". This would lead me to believe that it should be able to connect to the AT&T network here as it says it can connect to the 850/1900MHz frequency. I also looked underneath the battery to see the exact model and it's a RAPH100. I could swear I saw somewhere that this is the new North American version. I'm doing some more research and I'll post whatever I find in case it helps someone else in the future with my issue.
Sorry but almost all of us have the RAPH100 and we're all stuck with an almost useless g-note phone. It was an expensive lesson that may be salvageable if a radio antenna mod gets discovered and if not... it'll make a great paperweight.
I'm looking forward to the X1 or X1a or X1i or whatever they call it today.
Dammit
Well, I guess my ray of hope is now crushed. I can't wait around for a mod. I'm going to continue trying to send it back. I can't believe that they would say it connects to that frequency and not actually work. That's terrible. It reminds me of the whole problem with the missing drivers on the Kaiser. Time for another htclassaction.org website.
lokibjensen said:
While looking at what exactly I had purchased from Expansys I saw that they touted the phone as being, "Quad-band GSM/GPRS/EDGE: 850/900/1800/1900 MHz
Click to expand...
Click to collapse
Expansys have quoted correctly. GSM, GPRS and EDGE are all supported at these frequencies, but none of those technologies are 3G
Good luck getting a refund - it's not the retailers fault you didn't understand what you were buying
handsomedog said:
Expansys have quoted correctly. GSM, GPRS and EDGE are all supported at these frequencies, but none of those technologies are 3G
Good luck getting a refund - it's not the retailers fault you didn't understand what you were buying
Click to expand...
Click to collapse
Maybe they shouldn't sell a 3G phone in the US that doesn't do 3G. It's kind of hard in today's world to be up on every single kind of technology so one expects a company to list major issues such as this. I apologize that I'm not as knowledgeable as you about phone frequencies and protocols. I do know that there are a lot of other technical fields that I'm very knowledgeable about and would definitely try and give someone help without trying to put them down or make them look stupid because they didn't understand something that is not part of their expertise.

How to unlock 3g on a quadband Raphael.

I'm In India,
I got a Raphael this particular one :HTC Raphael
It has a Qualcomm® MSM7206A™ 528 MHz
with the latest stock radio : 1.13.25.24
And a custom ROM.
Now my problem is at the time i bought this there was no 3g in my country.
Now a few carriers provide 3g.
I can't access 3g.
I want to know if there is any way to access 3g by installing a PROGRAM or a ROM or a particular RADIO.
P.S: it doesn't matter if i can't make video calls(as no secondary camera) i would just like to access 3g network.
Please help needed and much appreciated.
PLEASE HELP
Thank you so much.
please help needed ( ihave searched all the fourms but haven't really found a solution, i have PMed many developers they don't respond. Please don't close this thread--> to mods. This is really important.
the raphael can handle 3g no problem. it's up to your service provider to give you access to 3g...
Try just going into the Comm Manager and enabling 3G and see if it connects.
mputtr said:
the raphael can handle 3g no problem. it's up to your service provider to give you access to 3g...
Click to expand...
Click to collapse
rmcknight said:
Try just going into the Comm Manager and enabling 3G and see if it connects.
Click to expand...
Click to collapse
My raphael is not unlocked or maybe doesn't have the chipset to recieve the 3g network please see my link !
I'm asking if there is any way that i can unlock the settings !
It is nothing to do with operator or comm manage.
Please understand the problem.
The problem is the chipset/processor not the Software or the operator
anyways thanks
PLease post if any solution...
When i first bought my TP, i used my old sim card (from my BA) which was only supporting 2G..so i had to go to the operator to ask for a new sim card that support 3G! once i got the new sim card i could get into 3G no problme....
check your sim card if it support 3G
also check the network setting on your phone (start->setting->phone->band and then make sure to select auto or WCDMA)
hope this helps
moh980 said:
When i first bought my TP, i used my old sim card (from my BA) which was only supporting 2G..so i had to go to the operator to ask for a new sim card that support 3G! once i got the new sim card i could get into 3G no problme....
check your sim card if it support 3G
also check the network setting on your phone (start->setting->phone->band and then make sure to select auto or WCDMA)
hope this helps
Click to expand...
Click to collapse
Hey GUys please GO TO THE LINK I PROVIDED In the first post all this is not the problem the probles is the 706A processor provided by HTC which doesn't allow the phone to recieve signals beyond the 1900 band and the 3g signals are at 2100 band range !
And most of the Raphaels which have 3g have the 701A processors not 706A
I was just wondering if some senior member / chef / developer / a friend could help me.......
And tell if flashing a radio are a program will help this situation
Trust me it has nothing to do with operator, SIM , Comm manager !
Thank you all !
Please help if anyone....
actually... 3g operates not only on the 2100 band but also the 1900 and 850 band. It is up to your provider to allow you to use 3g. When I went back to thailand, the phone company I used "locked" 3g and my phone would complain that i could not connect to 3g.. until I called the phone company and I went through a series of instructions that "unlocks" my number to allow 3g.
You need to do a little more research on your question before you go ahead and tell everyone they're wrong. Trust me, providers can prevent you from using 3g capabilities.
The radio only helps transmit the information. some work better than other, but they do not prevent you from using a specific radio. Processors also do not matter since it is more related to the processing speed of the phone, not its ability to handle networks.
check this link to see that the touchpro is indeed, 3g ready, all versions of it that I know of. http://www.gsmarena.com/htc_touch_pro-2413.php
mputtr said:
actually... 3g operates not only on the 2100 band but also the 1900 and 850 band. It is up to your provider to allow you to use 3g. When I went back to thailand, the phone company I used "locked" 3g and my phone would complain that i could not connect to 3g.. until I called the phone company and I went through a series of instructions that "unlocks" my number to allow 3g.
You need to do a little more research on your question before you go ahead and tell everyone they're wrong. Trust me, providers can prevent you from using 3g capabilities.
The radio only helps transmit the information. some work better than other, but they do not prevent you from using a specific radio. Processors also do not matter since it is more related to the processing speed of the phone, not its ability to handle networks.
check this link to see that the touchpro is indeed, 3g ready, all versions of it that I know of. http://www.gsmarena.com/htc_touch_pro-2413.php
Click to expand...
Click to collapse
Sir with all due respect and without being rude to you i have to tell you to READ THIS LINK BEFORE POSTING :HERE
And please note the network part and the part which says the processor :Qualcomm® MSM7206A™ 528 MHz :this processor is the processor which does not allow me to recieve the 3g signals.
And in my country my operator does not have 3g yet but would launch in december. I traveled to 3 countries in last 1 year and tried to connect 3g (with stock radio and rom and failed)
I respect you but i have to say you are "Wrong"
thank you
and please refer to the link.
And i have done all the research i could possibly do before posting a thread.
Thank you ( no offense meant)
ok. you are right. In this case, there is nothing you can do since it is the chipset itself. It is not meant to do 3g and it probably will not do 3g unless you go in and try to mess with the bios itself. That would most probably brick your phone. So to answer your question, no it's not possible unless you want to risk bricking your phone.
the only thing i can say is that it sucks that you bought the version that couldn't do 3g, but there is probably not a way to change that.
It looks like it can not do 3G at all. Interesting, I didn't know they made Raphaels without 3G. It probably doesn't have any hardware to do 3G, just like the european ones don't have the hardware to do 850MHz and 1900MHz 3G used in the U.S.
petard said:
It looks like it can not do 3G at all. Interesting, I didn't know they made Raphaels without 3G. It probably doesn't have any hardware to do 3G, just like the european ones don't have the hardware to do 850MHz and 1900MHz 3G used in the U.S.
Click to expand...
Click to collapse
yeah. I thought all touch pro phones are 3g enabled. Well I would have to admittedly say that it really reeks to have a 3g capable phone forced at only 2g through hardware limitations.
guys 3g can be possible
if ppl here check this prior link http://www.gsmarena.com/htc_touch_pro-2413.php
it will show that the release date is june 08 so it means that the company at that time had 3g capabilities in the tp well i am from india mumbai and am using mtnl as a network provider well i had 3g enabled on my sim card 3g did not work on my tp but it did work on my friends nokia phone so the question of sim card not supporting 3g does not arise also asfaik it has something to do with the radio especially the protocol version which should end in something that is not 'G' so i want ppl who are reading this to post some of their radio of links which points to a radio ...
franci1s said:
if ppl here check this prior link http://www.gsmarena.com/htc_touch_pro-2413.php
it will show that the release date is june 08 so it means that the company at that time had 3g capabilities in the tp well i am from india mumbai and am using mtnl as a network provider well i had 3g enabled on my sim card 3g did not work on my tp but it did work on my friends nokia phone so the question of sim card not supporting 3g does not arise also asfaik it has something to do with the radio especially the protocol version which should end in something that is not 'G' so i want ppl who are reading this to post some of their radio of links which points to a radio ...
Click to expand...
Click to collapse
Hey do you also have the 706A procesoor ??
And guys it sucks that HTC dared to do this cheapstake thing !
Anyways my bad luck I'll change now only after 2 years so no 3g......
But on the optimistic side i love every other part of the phone specially the way flashing can be done like no other phone !
Its great !
3g would have been an icing on the cake though !
but HTC sucks with that !
Thank you all...
franci1s said:
if ppl here check this prior link http://www.gsmarena.com/htc_touch_pro-2413.php
it will show that the release date is june 08 so it means that the company at that time had 3g capabilities in the tp well i am from india mumbai and am using mtnl as a network provider well i had 3g enabled on my sim card 3g did not work on my tp but it did work on my friends nokia phone so the question of sim card not supporting 3g does not arise also asfaik it has something to do with the radio especially the protocol version which should end in something that is not 'G' so i want ppl who are reading this to post some of their radio of links which points to a radio ...
Click to expand...
Click to collapse
sorry francis. As I have realized later in this thread, based on the OP's phone spec, his/her phone is quite literally incapable of doing 3g because it does not have the hardware capability to utilize it.
sim cards, as far as i know does not do anything with which band you can use, it simply holds information like contact list and your phone number ID. Radio also does not matter as i have stated in an earlier post. Radios are like channels on a wireless router, it can send the same signals, it just depends on which channel works best with the majority of computers in the place.
mputtr said:
sorry francis. As I have realized later in this thread, based on the OP's phone spec, his/her phone is quite literally incapable of doing 3g because it does not have the hardware capability to utilize it.
sim cards, as far as i know does not do anything with which band you can use, it simply holds information like contact list and your phone number ID. Radio also does not matter as i have stated in an earlier post. Radios are like channels on a wireless router, it can send the same signals, it just depends on which channel works best with the majority of computers in the place.
Click to expand...
Click to collapse
just for your information even Francis has the same set of TP with the same processor (706A) and hence he has the smae problem/ bad luck !
And we both need the same solution ( IF ANY AT ALL.........)
Thank you.
yes i realized that I misread the post and misunderstood your original problem. But in this case it seems like a hardware limitation. something you can't solve with software changes. Although I'll have to admit that there is a chance that a bios flash might do something. but you will probably run a massive risk of bricking your phone permanently and I highly doubt it is worth the risk.
Hopefully one of the mods here would know if there is a way around this. good luck
Moderators
mputtr said:
yes i realized that i misread the post and misunderstood your original problem. But in this case it seems like a hardware limitation. Something you can't solve with software changes. Although i'll have to admit that there is a chance that a bios flash might do something. But you will probably run a massive risk of bricking your phone permanently and i highly doubt it is worth the risk.
Hopefully one of the mods here would know if there is a way around this. Good luck
Click to expand...
Click to collapse
shoutout to mods please help (but not at the cost of a brick)​
MOD EDIT: yelling will not help you overcome a device hardware limitation.
closed at OP request.

[Q] LG F320K not connecting to US AT&T data network

Hey guys, noob to rooting and pretty much anything with android that's custom here,
Just bought a korean version g2 the f320k version. Phone works for making calls and sending text messages, but will not connect to their data network. Not sure if its because I do not have the 700 (lte) band range for an option on the phone when I enter the WCDMA service menu. I work for a subcontractor for AT&T and am somewhat familiar with the equipment they use. the LTE radios run off 700. UMTS and GSM is most common 850 and in higher priority areas 1900. doesn't appear that the phone supports UMTS bands either which might be part of the issue. I have done all sorts of tweaking with the frequency bands and that kind of stuff when you enter "5457#*320#" but none of my combinations seem to be working. Ive tried rooting the phone following the exact instructions on the rootjunkie videos, install seemed to have gone good, but root checker tells me i do not have root access, superuser installed during the root process, but something else must be out of date or something. Was hoping to be able to flash the phone with AT&Ts rom or something and maybe that would work. I live in the Minneapolis, St. Paul MN area...has anyone else had any luck with this version of the g2 working on US carriers? I really don't want to, but pretty much ready to give up on this phone, I've scoured this website for the past few days and cannot seem to find any solutions.
Can anyone confirm this phone, flat out, will not completely work in the US market? Please help android gurus!!! :fingers-crossed:

[Q] How can the 4G frequency be changed from 1700mhz to 1800 mhz

I've searched for 3 days now, trying to get some info on this, there are various discussions on xda and on other sites that come along the same line, most of the answers are:
No it can't be done - it's hardware related - there are different variants for each region (seems this is not the case with the ONE)
You need someone with QPST but it probably can not be done.
But there is none that actually clears it up, it's mostly "I think it is...................."
What I found out is that the chip regulating 4G LTE connectivity on all HTC one variants is the same (600 MHz Hexagon QDSP6V5A part of the MSM8974 chip and it can sport the ALL LTE frequencies), so it is not a hardware difference between the EMEA and the Verizon, now the question is do I need someone with this QPST or will it only be a case of changing the baseband - all this, is my own conclusion, feel free to give me feedback on this
now on the Verizon site LTE spec says:
Network: LTE Band 13/4 (700/1700 MHz)
CDMA/1xEVDO Rev. A (800/1900 MHz)
the HTC site for Verizon says 4G LTE:
EMEA: 800/900/1800/2600 MHz
Verizon: 700/AWS/1800/2600 MHz
Yet I still don't get any 4G
Sadly there is so much info and it's hard to follow it all. So please can someone explain what and how things actually work?
Why do I need to know all this? Cause I have a Verizon m8 and I'm using it in Europe and I can't get 4G - atm I'm using Insertcoin with ElementalX 8.0.5 kernel and everything is working on the phone aside 4G - I flashed various roms on it, never had ANY problem, aside small things that a Google search solved.
Anyone that can enlighten me? Any help would be appreciated.
Bump
Sent from my HTC6525LVW using xda app-developers app
So are you not getting any 4G LTE? If so I'm not sure why. I get 4G LTE almost everywhere I go.
Sent from my HTC6525LVW using xda app-developers app
Nope not getting it at all
Sent from my HTC6525LVW using xda app-developers app
masucu said:
I've searched for 3 days now, trying to get some info on this, there are various discussions on xda and on other sites that come along the same line, most of the answers are:
No it can't be done - it's hardware related - there are different variants for each region (seems this is not the case with the ONE)
You need someone with QPST but it probably can not be done.
But there is none that actually clears it up, it's mostly "I think it is...................."
What I found out is that the chip regulating 4G LTE connectivity on all HTC one variants is the same (600 MHz Hexagon QDSP6V5A part of the MSM8974 chip and it can sport the ALL LTE frequencies), so it is not a hardware difference between the EMEA and the Verizon, now the question is do I need someone with this QPST or will it only be a case of changing the baseband - all this, is my own conclusion, feel free to give me feedback on this
now on the Verizon site LTE spec says:
Network: LTE Band 13/4 (700/1700 MHz)
CDMA/1xEVDO Rev. A (800/1900 MHz)
the HTC site for Verizon says 4G LTE:
EMEA: 800/900/1800/2600 MHz
Verizon: 700/AWS/1800/2600 MHz
Yet I still don't get any 4G
Sadly there is so much info and it's hard to follow it all. So please can someone explain what and how things actually work?
Why do I need to know all this? Cause I have a Verizon m8 and I'm using it in Europe and I can't get 4G - atm I'm using Insertcoin with ElementalX 8.0.5 kernel and everything is working on the phone aside 4G - I flashed various roms on it, never had ANY problem, aside small things that a Google search solved.
Anyone that can enlighten me? Any help would be appreciated.
Click to expand...
Click to collapse
Each model must have a different *antenna* configuration so that they are optimized to their respective regions. The *antenna* is separate from the actual radio you mentioned above. This is why there are so many models, which I thought I had explained in this thread: http://forum.xda-developers.com/showthread.php?t=2710720&page=5
Even if you could override what band the phone connected to, the performance would be abysmal. The fix for this would be to physically change the antenna. If you could do this on your own, you deserve an honorary degree in electrical engineering since antenna design isn’t the easiest thing in the world. Here’s where to start: http://en.wikipedia.org/wiki/Maxwell's_equations
Since there is a discrepancy between the Verizon and HTC spec sheets, I would do the following:
1.) Focus your research on seeing which one is correct by contacting HTC and Verizon.
2.) If Verizon’s is correct, you’re done. Romania’s carriers only transmit LTE on 1800 Mhz (band 3). Otherwise…
3.) If HTC’s sheet is correct, focus on why you can’t detect 1800 MHz. It must be something in your unlock method or Verizon really locked the hell out of the radios for some reason.
subhumanderelict said:
Each model must have a different *antenna* configuration so that they are optimized to their respective regions. The *antenna* is separate from the actual radio you mentioned above. This is why there are so many models, which I thought I had explained in this thread: http://forum.xda-developers.com/showthread.php?t=2710720&page=5
Even if you could override what band the phone connected to, the performance would be abysmal. The fix for this would be to physically change the antenna. If you could do this on your own, you deserve an honorary degree in electrical engineering since antenna design isn’t the easiest thing in the world. Here’s where to start: http://en.wikipedia.org/wiki/Maxwell's_equations
Since there is a discrepancy between the Verizon and HTC spec sheets, I would do the following:
1.) Focus your research on seeing which one is correct by contacting HTC and Verizon.
2.) If Verizon’s is correct, you’re done. Romania’s carriers only transmit LTE on 1800 Mhz (band 3). Otherwise…
3.) If HTC’s sheet is correct, focus on why you can’t detect 1800 MHz. It must be something in your unlock method or Verizon really locked the hell out of the radios for some reason.
Click to expand...
Click to collapse
Cheers mate, went to an actual engineer that handles repairs here in Romania for various brands and we both decided to make it our own personal project to make this happen a Verizon M8 turned into a Euro version one, ill report back with the results in about 2 weeks. Seems technically it can be done, just needs a some work. Thanks again for the reply though.
masucu said:
Cheers mate, went to an actual engineer that handles repairs here in Romania for various brands and we both decided to make it our own personal project to make this happen a Verizon M8 turned into a Euro version one, ill report back with the results in about 2 weeks. Seems technically it can be done, just needs a some work. Thanks again for the reply though.
Click to expand...
Click to collapse
That's actually kind of admirable! Seriously, I wish you luck; it would be really awesome if you succeeded. If you begin making progress, I would love to hear about it!
Just in case you didn't know about it, here is the teardown guide with a link to the tools you'd need to open up the M8:
http://www.ifixit.com/Teardown/HTC+One+(M8)+Teardown/23615
Sent from my Nexus 7 using Tapatalk
masucu said:
Cheers mate, went to an actual engineer that handles repairs here in Romania for various brands and we both decided to make it our own personal project to make this happen a Verizon M8 turned into a Euro version one, ill report back with the results in about 2 weeks. Seems technically it can be done, just needs a some work. Thanks again for the reply though.
Click to expand...
Click to collapse
Hi Macusu,
Just to remember, I believe the problem is not only related to the antenna itself, maybe there are other kind of locks since, as discussed in the other topic, Here in Brazil and I`m not being able to attach it to 4G 2600MHz (Even if the phone supports this frequency).
UntouchableS said:
Hi Macusu,
Just to remember, I believe the problem is not only related to the antenna itself, maybe there are other kind of locks since, as discussed in the other topic, Here in Brazil and I`m not being able to attach it to 4G 2600MHz (Even if the phone supports this frequency).
Click to expand...
Click to collapse
Thing is they are waiting for all the tools atm, I mean they don't yet have all the new kits for it, it should be arriving, and the engineer is actually a certified person being one that works in a certified HTC service, so once we get the entire .... kit, he will start working on it toghther with the software engineer and so on, hope that it will all sort out, i did get another phone in the mean time as well, but as i said i will be reporting back.
Thank
subhumanderelict said:
That's actually kind of admirable! Seriously, I wish you luck; it would be really awesome if you succeeded. If you begin making progress, I would love to hear about it!
Just in case you didn't know about it, here is the teardown guide with a link to the tools you'd need to open up the M8:
http://www.ifixit.com/Teardown/HTC+One+(M8)+Teardown/23615
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Thanks for the guide, hopefully we wont need it but I will let you know how it goes.
masucu said:
Thanks for the guide, hopefully we wont need it but I will let you know how it goes.
Click to expand...
Click to collapse
Did you succeed?
MikkelJakobsen said:
Did you succeed?
Click to expand...
Click to collapse
I would like to know also...
sandm4n said:
I would like to know also...
Click to expand...
Click to collapse
So would I...I'm also from Brazil and brought the Verizon model because it is said to support the 2600 frequency. So frustrating

[Completed] Noob in need of radio/modem flashing information

Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.
XDA Visitor said:
Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.
Click to expand...
Click to collapse
Hi, and welcome to XDA!
When I looked up the specs on the Note 5 Duos, unfortunately it says nothing about CDMA. Having both "radio chips inside" can be taken two ways, in this case, this phone has the capability to handle two GSM carriers (and in this case, like most dual-sim phones, only the first SIM can do 3G/4G/LTE speeds).
Network Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 1900 / 2100
4G bands LTE
Speed HSPA 42.2/5.76 Mbps, LTE
GPRS Yes
EDGE Yes
Click to expand...
Click to collapse
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.
joel.maxuel said:
Hi, and welcome to XDA!
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.
Click to expand...
Click to collapse
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.
Rockstah said:
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.
Click to expand...
Click to collapse
Well, the hardware (particularly the modem) is not compatible, hance the failed install. You are lucky it cancelled out as you could have had worse problems on your hands.
The way i see it, you will have to wait for other regions for the Note 5 Duos to open up before you get flashing options. I would even question the need for that, if you get a decent range of bands with T-Mo (I am assuming you can get 4G).
If you want to explore further anyway, please check out this thread:
> Samsung Galaxy Note5 > Galaxy Note5 Q&A, Help & Troubleshooting > [Help Thread][Galaxy Note5] Ask Any Question, Noob Friendly
Hope this helps.
joel.maxuel said:
Hope this helps.
Click to expand...
Click to collapse
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.
Rockstah said:
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.
Click to expand...
Click to collapse
Aha. That and no sign of the 700mHz band (which may not be part of your phone anyway, not just hidden by the current firmware).
Since the firmware would need deep support of Wifi Calling (or VoLTE), as in more than just an App, I am afraid you will have to wait until the Duos releases into an area with that support in their firmware (and hope that, that area's firmware doesn't disable a frequency you use).
Makes scraping all the lead paint[*] off the house the more manageable task, doesn't it?
[*] I really don't know if your house does indeed have lead paint. I am assuming it's coated in something metal, or concrete, which avoids typically high frequency radio waves from entering. I never had that problem with my house (which may be strange, since it was built in the 40's), but maybe creating ways to boost the existing signal may be in order instead.

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