Database Users

[Q] AT&T (G900A) - Did I screw up by buying this one?

I can't seem to find any legitimate way to root my G900A from AT&T.
I was with Sprint with my S4, and never had an issue. I made the switch to AT&T before buying the S5.. Was that mistake?
In all the threads I've combed through here there is one common, glaring, issue.. The G900A is not included in the supported devices.
Am I missing something obvious or am I screwed? Or am I just looking too soon?
Already gave the S4 to my daughter.
Thanks for any information or insight.

ACiD0N said:
I can't seem to find any legitimate way to root my G900A from AT&T.
I was with Sprint with my S4, and never had an issue. I made the switch to AT&T before buying the S5.. Was that mistake?
In all the threads I've combed through here there is one common, glaring, issue.. The G900A is not included in the supported devices.
Am I missing something obvious or am I screwed? Or am I just looking too soon?
Already gave the S4 to my daughter.
Thanks for any information or insight.
Click to expand...
Click to collapse
Here is a universal root method.
http://forum.xda-developers.com/showthread.php?t=2717061
Try to talk with a recovery developer to check your partition table.
(Other variant may have matching partition table with your variant)
I guess, @PlayfulGod can help you with it.

ACiD0N said:
I can't seem to find any legitimate way to root my G900A from AT&T.
I was with Sprint with my S4, and never had an issue. I made the switch to AT&T before buying the S5.. Was that mistake?
In all the threads I've combed through here there is one common, glaring, issue.. The G900A is not included in the supported devices.
Am I missing something obvious or am I screwed? Or am I just looking too soon?
Already gave the S4 to my daughter.
Thanks for any information or insight.
Click to expand...
Click to collapse
SandeepEmekar said:
Here is a universal root method.
http://forum.xda-developers.com/showthread.php?t=2717061
Try to talk with a recovery developer to check your partition table.
(Other variant may have matching partition table with your variant)
I guess, @PlayfulGod can help you with it.
Click to expand...
Click to collapse
I'm sure eventually a root method will come about for that model. Unfortunately tho, the vzw & att models have a locked bootloader and most likely locked down with knox as well and currently no way to boot custom recoveries or kernels.

PlayfulGod said:
I'm sure eventually a root method will come about for that model. Unfortunately tho, the vzw & att models have a locked bootloader and most likely locked down with knox as well and currently no way to boot custom recoveries or kernels.
Click to expand...
Click to collapse
@PlayfulGod is absolutely right. Even if an exploit is found for the AT&T or Verizon models, it is unlikely that you'll ever have full root access - thanks to the combination of locked bootloaders, KNOX, and SELinux.
Check your contract - most carriers have a 14-day "buyer's remorse" period in which you can return your handset. You might be faced with a $35-$50 "restocking fee", but depending on how desperate you are for custom ROMs and/or Recovery, it may be worth it to you. Please note that your carrier may try everything they can to stop you from leaving (in terms of talking you out of it). Your contact with AT&T should also have a "back-out" period of 30 days (unless that's changed recently).
Couple other notes:
1) That's the primary reason I switched from AT&T to TMO when I jumped from the S4 to the S5 - I was sick of locked bootloaders. Otherwise, I really just like TMO a lot more as a company, including some of their political standpoints.
2) I've heard of several people now buying TMO S5's and taking them over to AT&T. It's a lot of money up front, but might be worth it to you.
Good luck.

Thanks guys
Thank you for the informative replies. They confirmed what I had already gathered, piece by piece, in a decent comprehensive manner so I appreciate it.
Unfortunately, this time around we gamed the system a bit and went in on this as a 'group' for the services and phones. As far as I can tell, as an individual, I don't have any options of returning the unit in favor of moving to another provider.
Besides that, I finally have good service where I live. I am in the middle of a city but my actual home was in a crap spot with Sprint. After doing research we found that we'd all have great service with AT&T. If the trade-off is no root, so be it I suppose. (Though I have heard that T-Mo has the same service in the same areas due to using the same connectivity)
The knox deal doesn't concern me so much.. This may be a bit cocky (and a little stupid), but I have yet to have to replace a galaxy since they started putting them out *knock on wood*. But it sounds like that's only one issue in a sea of others.
Long-winded story short, Thanks guys. I am much more informed on my situation than before. :good:

ACiD0N said:
I can't seem to find any legitimate way to root my G900A from AT&T.
I was with Sprint with my S4, and never had an issue. I made the switch to AT&T before buying the S5.. Was that mistake?
In all the threads I've combed through here there is one common, glaring, issue.. The G900A is not included in the supported devices.
Am I missing something obvious or am I screwed? Or am I just looking too soon?
Already gave the S4 to my daughter.
Thanks for any information or insight.
Click to expand...
Click to collapse
I expressly bought a G900W8 model because of the locked bootloader issue with AT&T. I've come from Verizon on the S4, and I wasn't doing the whole locked thing again - it was annoying and I just wasn't going to have it. What I did was buy an S5 from AT&T on a $25/month installment plan, turn around and sold it on Swappa for full price, and bought an unlocked W8 model the same day. I payed virtually nothing except shipping, I get a nice unlocked phone ready for AOSP when it comes out, and I didn't have to pay the ridiculous $650 price for what would be essentially a developer unlocked phone.
If your phone is still new and you think you could sell it and get mint condition pricing on it, do your research on the G900T model. That's TMobile's phone, but it has an unlocked bootloader, can be rooted/flashed/whatever you like, and if I remember correctly (please someone correct me if I'm wrong), it works on all the bands that AT&T does and will be virtually the same as far as mobile data goes. If you already have your service activated on your current AT&T phone, you can literally just swap the SIM card out and you shouldn't have any issues after that. There might be a little caveat as far as having an AT&T SIM in a Tmo phone, but as far as I've read on the forum, this is very easy to get past; you may very well not have any problems whatsoever.
You could look for the W8 model, which wouldn't have any carrier branding on it, but those were hard to come by for me on Swappa, and the unlocked listing the main page gives you is for a phone that doesn't support 4G.
So like I said, if you think you could sell it, and you find a good listing on Swappa for an unlocked phone, I say go for it. Having an unlocked bootloader is going to put your device in a good place as far as updates go, and once developers start pushing out polished custom ROMs, you'll be happy to use your device for longer than the year's use that is generally expected.

[Q] Which version should I go with

I have poured through these forums only to get more confused on the topic. I hate to put out a similar question but think I must.
I am using the AT&T network but I have to pay full price for a variety of reasons. So I would like to know which will be best variant given the following considerations ...
1) International Travel
I have to go to Israel and Europe about once a year and need to be able to use different sim cards. I don't need the fastest bands while Im there but need it to work though.
2) LTE Bands
90% of the time I am in the USA and I want the best compatibility and fastest speeds with AT&T. From what I understand the T-mobile version covers most but will I have any issues?
3) Root
A must have eventually. More important than item 4.
4) ASOP ROMS
If it all possible I would like to run cyanogenmod or something similar in the future. I hear the tmobile has an unlocked boot loader. AT&T said it would unlock the phone for me if I pay full price but this doesn't mean the bootloader correct?
5) WIFI Calling
I wold definitely like to use this once its available.
Any help would be greatly appreciated. I am ready to buy once I get this straightened out.

You should get... Note 4.
Sent from my Galaxy Nexus using Tapatalk

McGragger said:
I have poured through these forums only to get more confused on the topic. I hate to put out a similar question but think I must.
I am using the AT&T network but I have to pay full price for a variety of reasons. So I would like to know which will be best variant given the following considerations ...
1) International Travel
I have to go to Israel and Europe about once a year and need to be able to use different sim cards. I don't need the fastest bands while Im there but need it to work though.
2) LTE Bands
90% of the time I am in the USA and I want the best compatibility and fastest speeds with AT&T. From what I understand the T-mobile version covers most but will I have any issues?
3) Root
A must have eventually. More important than item 4.
4) ASOP ROMS
If it all possible I would like to run cyanogenmod or something similar in the future. I hear the tmobile has an unlocked boot loader. AT&T said it would unlock the phone for me if I pay full price but this doesn't mean the bootloader correct?
5) WIFI Calling
I wold definitely like to use this once its available.
Any help would be greatly appreciated. I am ready to buy once I get this straightened out.
Click to expand...
Click to collapse
805 snapdragon will have the better dev support.
I have the exynos version and it's amazing.. especially with exposed.. no issues here what so ever..

Verizon vs T-Mobile S5 for TING?

Hello all,
I will need some UberGeek advice for this one...lol
I use TING as my MVNO provider. They offer CDMA and GSM networks backboning on Sprint and T-Mobile. I had to get a new phone and ordered a Sprint CDMA version G900P but received a Verizon model G900V. It works perfectly fine on the TING network.
I am just wondering if there is any reason not to get this phone and to go with a T-Mobile model instead? I normally would go Sprint/CDMA but wanted to try out GSM this time. Both have excellent coverage in my area. I also know about the ATT/Verizon bootloader being locked. I have already rooted this and it's running Lollipop just fine a sper the instructions found in threads here.
TING told me the phone is no different essentially and there should be no problems. As always their cust, svc. was excellent and informative. This phone apparently has dual radios...CDMA and GSM. I don't have to worry about warranties, KNOW tripping or Verizon's bs. As I said, I am rooted and running fine. I will either debloat this sucker or go with another ROM. Right now THE only bugaboo I see is that there are so few ROMs for the Verizon model. I am not into switching ROMs. If I ditch a debloated stock setup, it would have to be very something very clean and stable based on Lollipop. Seems like CM 12.1 could be nice but right now slightly risky and they don't have the Fingerprint feature working either.
Does anyone feel it would be smarter to return this and get a T-Mobile model? Any food for thought or advice or "Here is why you'll regret the Verizon model 6 months from now" kind of advice?
Thanks in advance!!!!!!!!

Besides the locked bootloader, the G900V is the same phone as the rest of the S5's (of course with different radios for CDMA). If you're cool with just running stock firmware forever then keep the Verizon model. The T-Mobile model would allow you to do whatever you like with it though, as the bootloader is unlocked. Virtually no possibility of losing root.

Sean89us said:
Besides the locked bootloader, the G900V is the same phone as the rest of the S5's (of course with different radios for CDMA). If you're cool with just running stock firmware forever then keep the Verizon model. The T-Mobile model would allow you to do whatever you like with it though, as the bootloader is unlocked. Virtually no possibility of losing root.
Click to expand...
Click to collapse
Thanks for the response. Pretty much what I figured. I have it rooted and using Safe Strap and MIGHT toy with CM 12.1 since there are many out there with the Verizon model that seem to like it. Plenty of YouTube videos too.

FINALLY! A single hardware variant for all US carriers.

Looking at the FCC docs for what appears to be the S7, it seems like Samsung will finally make just a single hardware variant for the US, FCC ID A3LSMG935US, with the different carrier models' features and bands being enabled/disabled solely in software or firmware.
Assuming this observation is correct, this will mark a sea change in Samsung's approach which in the past meant creating a plethora of hardware variants for the US market.
This may also mean that at some point we might see an unlocked model with broad support for multiple US carriers.

FINALLY! A single hardware variant for all US carriers
myphone12345 said:
Looking at the FCC docs for what appears to be the S7, it seems like Samsung will finally make just a single hardware variant for the US, FCC ID A3LSMG935US, with the different carrier models' features and bands being enabled/disabled solely in software or firmware.
Assuming this observation is correct, this will mark a sea change in Samsung's approach which in the past meant creating a plethora of hardware variants for the US market.
This may also mean that at some point we might see an unlocked model with broad support for multiple US carriers.
Click to expand...
Click to collapse
Hope this will come true

haldi15 said:
GayT&T and Verizon will still lock the bootloaders on their versions
Click to expand...
Click to collapse
Probably true but since most of us will have to buy the phone outright now due to no carrier subsidies, couldn't we just buy a T-Mobile version and active whatever bands are needed for lets say Verizon? I have always heard that T-Mobile phones are easier to deal with as far as a Sammy BL goes. I may be way off on my thinking but it was my thought as this was a way around Verizon and AT&T locking down the equipment that we own.

t_house said:
Probably true but since most of us will have to buy the phone outright now due to no carrier subsidies, couldn't we just buy a T-Mobile version and active whatever bands are needed for lets say Verizon? I have always heard that T-Mobile phones are easier to deal with as far as a Sammy BL goes. I may be way off on my thinking but it was my thought as this was a way around Verizon and AT&T locking down the equipment that we own.
Click to expand...
Click to collapse
correct both US and canadian users already do this, you can either hex edit the modem or just flash a modem that carries the support already as many users have done.

t_house said:
Probably true but since most of us will have to buy the phone outright now due to no carrier subsidies, couldn't we just buy a T-Mobile version and active whatever bands are needed for lets say Verizon? I have always heard that T-Mobile phones are easier to deal with as far as a Sammy BL goes. I may be way off on my thinking but it was my thought as this was a way around Verizon and AT&T locking down the equipment that we own.
Click to expand...
Click to collapse
Been using TMOBILE Phones on ATT Network for 5 years. S4- S5-Note 3, 4 and 5, S6 - etc.

Perhaps this coincides with the rumored Samsung leasing program and one unlocked phone for all carriers.
Only recently has Verizon started activating unlocked phones ie Nexus.
My 2 cents

Solace50 said:
correct both US and canadian users already do this, you can either hex edit the modem or just flash a modem that carries the support already as many users have done.
Click to expand...
Click to collapse
Is it really expected to be that easy to use a T-Mobile S7 on Verizon? T-Mobile leaves them unlocked so you can flash Verizon radios and are good to go?

Redflea said:
Is it really expected to be that easy to use a T-Mobile S7 on Verizon? T-Mobile leaves them unlocked so you can flash Verizon radios and are good to go?
Click to expand...
Click to collapse
I know in the past you could always take a Verizon S7 and use it on T-Mobile or AT&T, but the problem has been a lack of band support since Verizon only seems to include at most bands 2, 4, 5, and 13. Here's hoping the S7 changes this.

geoff5093 said:
I know in the past you could always take a Verizon S7 and use it on T-Mobile or AT&T, but the problem has been a lack of band support since Verizon only seems to include at most bands 2, 4, 5, and 13. Here's hoping the S7 changes this.
Click to expand...
Click to collapse
I'm more interested in the other direction, T-Mobile S7 Edge on Verizon. If that's doable, that would be nice.

Redflea said:
I'm more interested in the other direction, T-Mobile S7 Edge on Verizon. If that's doable, that would be nice.
Click to expand...
Click to collapse
I really hope so. In the past only the Verizon model could work on Verizon, but I think it's about time Samsung changes this and follows the route of the Nexus, iPhone, and Moto direction of one phone that works on all carriers.

I have a Verizon S5 and I can easily activate any band I need by changing settings in the IOT Hidden Menu and/or Service Mode. It's been a minute since I last played around with my phone in that capacity but I know I can do it. Obviously root access is a must to do any of this so I guess we will see if Sammy bastardizes the S7 like they did the S6 Edge and Edge+ with no options at all for root. That really is a deal breaker for me. I'll keep my S5 and see what the 2016 versions of the Nexus phones are like.

t_house said:
I have a Verizon S5 and I can easily activate any band I need by changing settings in the IOT Hidden Menu and/or Service Mode. It's been a minute since I last played around with my phone in that capacity but I know I can do it. Obviously root access is a must to do any of this so I guess we will see if Sammy bastardizes the S7 like they did the S6 Edge and Edge+ with no options at all for root. That really is a deal breaker for me. I'll keep my S5 and see what the 2016 versions of the Nexus phones are like.
Click to expand...
Click to collapse
No, you can't activate any band you need. You may be able to activate certain unlocked bands, but it still lacks many of the bands that are in use today by other carriers.

It has come to my attention that the Straight Talk version of the Galaxy S5 comes with an unlocked bootloader and is practically identical to the Verizon version. Cyanogenmod and TWRP can be loaded on to it. You would treat it as a developer model S5.
Sent from my rooted SM-G900V

t_house said:
It has come to my attention that the Straight Talk version of the Galaxy S5 comes with an unlocked bootloader and is practically identical to the Verizon version. Cyanogenmod and TWRP can be loaded on to it. You would treat it as a developer model S5.
Sent from my rooted SM-G900V
Click to expand...
Click to collapse
That's awesome if true. Have you actually done this yourself? Or do you have a source?

Apparently AT&T will be offering an off-contract phone but still unsure if it will be unlocked or not. Does anyone have experience with AT&T and their off-contract phones.

Redflea said:
Is it really expected to be that easy to use a T-Mobile S7 on Verizon? T-Mobile leaves them unlocked so you can flash Verizon radios and are good to go?
Click to expand...
Click to collapse
That seems to be what OP is implying, though I'm not as optimistic. If that's confirmed true then I'll be getting an S7 on day one.
Unlimited data keeps us on Verizon, but I'm so sick and tired of their locked down devices.

myphone12345 said:
Looking at the FCC docs for what appears to be the S7, it seems like Samsung will finally make just a single hardware variant for the US, FCC ID A3LSMG935US, with the different carrier models' features and bands being enabled/disabled solely in software or firmware.
Assuming this observation is correct, this will mark a sea change in Samsung's approach which in the past meant creating a plethora of hardware variants for the US market.
This may also mean that at some point we might see an unlocked model with broad support for multiple US carriers.
Click to expand...
Click to collapse
Apparently not:
G930F (Global); G930A (AT&T, Cricket); G930P (Sprint, Boost, Virgin Mobile); G930V (Verizon); G930T (T-Mobile, Metro PCS); G930R (US Cellular)
Click to expand...
Click to collapse
Source

I think OP was referring to this image. Notice the middle model.

jal3223 said:
I think OP was referring to this image. Notice the middle model.
Click to expand...
Click to collapse
Very interesting. But...
No VoLTE on that model means no simultaneous voice and data on Verizon, as voice will always be CDMA (assuming they don't try and pitch a hissy fit about activating on their network in the first place). Also no wifi calling on that model.
Sent from my XT1585 using Tapatalk

So the T-Mobile site says it supports LTE band 13. I wonder if it could be used on Verizon, even if only in LTE mode?

What LTE bands does Sprint HTC 10 have?

I can't find any definitive answers on this. All I know is the minimum is 25, 26 and 41 but it'd be nice to know the full list. I travel internationally and without other LTE bands like band 7, it makes it tough to use it anywhere outside the US.
EDIT: Someone answered this question in another thread but it would be good to get screenshots to verify this.
m03sizlak said:
LTE Bands: 2 / 4 / 5 / 7 / 12 / 13 / 25 / 26 / 41
I've heard that the FCC filings show that the Sprint variant is not capable (tested or approved) for GSM or WCDMA, which is kind of disappointing since I travel a lot in Canada. Any confirmation on this?
Click to expand...
Click to collapse
This list of bands is a little better than both the Sprint variants of the LG G5 and Samsung Galaxy S7. If this phone can be unlocked, you at least have a way to go abroad and use LTE connections in much of Europe and elsewhere. Band 7 is the most common band in the world from what I understand.
I'm curious about this comment about GSM and WCDMA. Hopefully someone can verify this one way or another.

asuh said:
I'm curious about this comment about GSM and WCDMA. Hopefully someone can verify this one way or another.
Click to expand...
Click to collapse
Did you ever get an answer on this? I have a Sprint variant of the 10 and am trying to unlock it as I will be travel for the next 2 years. I've done everything I can think of but cannot get the phone's radio to work with any unlocked ROM. I could use some help here. Any advice or information you can provide?

vijn said:
Did you ever get an answer on this? I have a Sprint variant of the 10 and am trying to unlock it as I will be travel for the next 2 years. I've done everything I can think of but cannot get the phone's radio to work with any unlocked ROM. I could use some help here. Any advice or information you can provide?
Click to expand...
Click to collapse
If you plan to travel outside the US during most of this time, your best options are to sell your HTC 10 and get one of the few unlocked flagship phones on Sprint's networks, assuming you want to stay with Sprint.
Here are your options:
Google Pixel
Samsung Galaxy S7 SM-930U
Samsung Galaxy S7 SM-935U
Nexus 6P or 5X
Motorola X Pure Edition
Apple iPhone
Here's a full list as of February 2017 of radio unlocked phones compatible with Sprint.
There are other unlocked phones that are not compatible with Sprint because CDMA and LTE bands are crippled or missing.

asuh said:
If you plan to travel outside the US during most of this time, your best options are to sell your HTC 10 and get one of the few unlocked flagship phones on Sprint's networks, assuming you want to stay with Sprint.
Here are your options:
Google Pixel
Samsung Galaxy S7 SM-930U
Samsung Galaxy S7 SM-935U
Nexus 6P or 5X
Motorola X Pure Edition
Apple iPhone
Here's a full list as of February 2017 of radio unlocked phones compatible with Sprint.
There are other unlocked phones that are not compatible with Sprint because CDMA and LTE bands are crippled or missing.
Click to expand...
Click to collapse
Thanks for the response. The thing is I'm not on Sprint and have no desire to be. I won't be in the states long. I bought the phone thinking that like most, it could be unlocked and used as needed wherever I travel to. I knew it wasn't unlocked but figured I could do it myself. Well, I've tried a number of times, and keep having an issue with the radio. Can you explain what you mean by bands being crippled? What I'm trying to find out now is whether it's possible for me to get this HTC10 completely unlocked. I think I've done everything right but maybe not. I'm kinda desperate at this point. I love this phone. And if I have to I'll return it and grab another that can be unlocked but I just have a hard time believing that the phone can't be unlocked. It's a strange concept for me. Any help or info would be appreciated.

vijn said:
Thanks for the response. The thing is I'm not on Sprint and have no desire to be. I won't be in the states long. I bought the phone thinking that like most, it could be unlocked and used as needed wherever I travel to. I knew it wasn't unlocked but figured I could do it myself. Well, I've tried a number of times, and keep having an issue with the radio. Can you explain what you mean by bands being crippled? What I'm trying to find out now is whether it's possible for me to get this HTC10 completely unlocked. I think I've done everything right but maybe not. I'm kinda desperate at this point. I love this phone. And if I have to I'll return it and grab another that can be unlocked but I just have a hard time believing that the phone can't be unlocked. It's a strange concept for me. Any help or info would be appreciated.
Click to expand...
Click to collapse
First, go go Google and look up what LTE bands are.
Crippled LTE bands = the hardware inside the phone will not allow certain LTE bands to work unless physically altered. It doesn't matter which ROM you install, you will not unlock all the LTE bands without physical alteration. https://www.quora.com/Does-installing-different-rom-change-LTE-band-frequency
So no, HTC 10 will never be completely unlocked. Look at the list above and buy one of those phones if you want a completely unlocked phone.

asuh said:
First, go go Google and look up what LTE bands are.
Crippled LTE bands = the hardware inside the phone will not allow certain LTE bands to work unless physically altered. It doesn't matter which ROM you install, you will not unlock all the LTE bands without physical alteration. https://www.quora.com/Does-installing-different-rom-change-LTE-band-frequency
So no, HTC 10 will never be completely unlocked. Look at the list above and buy one of those phones if you want a completely unlocked phone.
Click to expand...
Click to collapse
I'm not sure I fully understand. Yes, I know that different chips have different bands that they work with. So, what you're saying is the Sprint HTC10 variant uses either a different chip or has some sort of other hardware configuration that is incompatible with GSM and the wider LTE bands and that no matter what I do with this phone I'll never have a truly unlocked phone? That's what I have understood, so my best option is to send it back. Ok, I get that. But I have read across tons of forums and threads of people who unlocked their Sprint 10s and are able to use them on other non-cdma carriers. So, how does that work? Are all the Sprint 10s the same or are some more limited than others? Are you essentially saying that i would have to get an unlocked/dev edition of the htc10 to be able to use GSM in other countries?
Sorry if i'm asking stupid questions here, I'm just trying to fully understand this. Thanks again for helping me out on this.

If anyone reading this knows better, please feel free to correct me.
This is my understanding of LTE bands and CDMA/GSM radios.
Phones like HTC 10, which are locked, include hardware that are built for specific usages. Prior to HTC 10, HTC phones built for Sprint's CDMA radio were specifically built to lock out GSM radio signals and most other LTE bands using the hardware. This means you'd have to open the physical device and modify the wiring inside the phone in order to allow other signals to work.
As of HTC 10, the locks are supposedly now just software based but I haven't seen proof of that. What this essentially means is that you should be able to unlock the bootloader and flash new Roms that could allow the GSM radio to work universally. However, lots of people are having issues with it. Here's one story of someone who was mostly successful but still had issues:
https://forum.xda-developers.com/showpost.php?p=68960210&postcount=47
Read through the thread above and you'll see a lot of people having issues trying to fully unlock the radios and LTE bands for this phone.
If you ultimately don't want to be on Sprint anyway, I think you really should consider getting something already unlocked that can universally work anywhere. And lots of interesting non-Sprint compatible phones like OnePlus 3t (among the others on the lists I provided) are already unlocked and have a lot of good capabilities and would work great anywhere. The Pixel is one of the best devices out there and the camera is amazing from what most people say.
So I think your options are limited and I'd highly suggest you consider getting a Pixel or something else already unlocked.

asuh said:
If anyone reading this knows better, please feel free to correct me.
This is my understanding of LTE bands and CDMA/GSM radios.
Phones like HTC 10, which are locked, include hardware that are built for specific usages. Prior to HTC 10, HTC phones built for Sprint's CDMA radio were specifically built to lock out GSM radio signals and most other LTE bands using the hardware. This means you'd have to open the physical device and modify the wiring inside the phone in order to allow other signals to work.
As of HTC 10, the locks are supposedly now just software based but I haven't seen proof of that. What this essentially means is that you should be able to unlock the bootloader and flash new Roms that could allow the GSM radio to work universally. However, lots of people are having issues with it. Here's one story of someone who was mostly successful but still had issues:
https://forum.xda-developers.com/showpost.php?p=68960210&postcount=47
Read through the thread above and you'll see a lot of people having issues trying to fully unlock the radios and LTE bands for this phone.
If you ultimately don't want to be on Sprint anyway, I think you really should consider getting something already unlocked that can universally work anywhere. And lots of interesting non-Sprint compatible phones like OnePlus 3t (among the others on the lists I provided) are already unlocked and have a lot of good capabilities and would work great anywhere. The Pixel is one of the best devices out there and the camera is amazing from what most people say.
So I think your options are limited and I'd highly suggest you consider getting a Pixel or something else already unlocked.
Click to expand...
Click to collapse
They are software based. I have unlocked AT&T bands on my Sprint variant, 2 actually , and they worked perfectly fine. I would show you proof but I am back on T-Mobile which the Sprint HTC 10 already has LTE support for by default.

unlock
jblparisi said:
They are software based. I have unlocked AT&T bands on my Sprint variant, 2 actually , and they worked perfectly fine. I would show you proof but I am back on T-Mobile which the Sprint HTC 10 already has LTE support for by default.
Click to expand...
Click to collapse
how did you unlock it manualy? can you show me some instruction?

jacobtvaliashvili said:
how did you unlock it manualy? can you show me some instruction?
Click to expand...
Click to collapse
See my other reply.