Develop Bugs

[Q] Does this phone have an unlocked bootloader?

Hey guys, I'm interested in buying an htc m8 but I DO NOT want to buy a locked phone with a locked bootloader. So quick simple question, if i provide this amazon link, will you guys tell me if this will have an unlocked bootloader? There's no mention of it on the site or description, so I figured you guys might know.
http://www.amazon.com/gp/product/B0...de_a_smtd&showDetailTechData=1#technical-data

ATalkingRock said:
Hey guys, I'm interested in buying an htc m8 but I DO NOT want to buy a locked phone with a locked bootloader. So quick simple question, if i provide this amazon link, will you guys tell me if this will have an unlocked bootloader? There's no mention of it on the site or description, so I figured you guys might know.
http://www.amazon.com/gp/product/B0...de_a_smtd&showDetailTechData=1#technical-data
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I don't see any information about bootloader there. It's probably locked if it has warranty

Saleen28 said:
I don't see any information about bootloader there. It's probably locked if it has warranty
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Click to collapse
Darn the price was very tempting. =\ find it difficult to find one that has an unlocked boot loader except maybe the one from htc themselves. The T-Mobile ones can be unlocked can they?
Sent from my iPhone using Tapatalk

ATalkingRock said:
Darn the price was very tempting. =\ find it difficult to find one that has an unlocked boot loader except maybe the one from htc themselves. The T-Mobile ones can be unlocked can they?
Sent from my iPhone using Tapatalk
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Dev edition has it unlocked by default.
I think they should be unlockable as there is this guide http://forum.xda-developers.com/showthread.php?t=2725099
Some links are probably outdated, like twrp, since I remember few threads asking about bootloader unlock and they were directed to this one but with info that some things are outdated

Even the ones with locked bootloaders (excepting Verizon's) are easily unlockable through HTCdev. If you luck out and get one with KitKat, you can skip that step and use Sunshine to S-off as well as unlock the bootloader.

jshamlet said:
Even the ones with locked bootloaders (excepting Verizon's) are easily unlockable through HTCdev. If you luck out and get one with KitKat, you can skip that step and use Sunshine to S-off as well as unlock the bootloader.
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Sorry, I've never heard of this. Other carrier HTC m8's can be unlock the booloader on the htc site without any issues? I've also never heard of S-off is that something which is mandatory if i plan on rooting/flashing roms?

ATalkingRock said:
Sorry, I've never heard of this. Other carrier HTC m8's can be unlock the booloader on the htc site without any issues? I've also never heard of S-off is that something which is mandatory if i plan on rooting/flashing roms?
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For most people who just want to run alternate ROMs, unlocking the bootloader is sufficient. However, HTCdev does respect carrier wishes, and not all carriers permit their phones to be unlocked. If you get a phone directly from HTC, or really from anyone other than a carrier, it will definitely be unlockable, though.
S-off isn't a requirement to flash ROMs or root - it is only a requirement if you want to manually update firmware, change the CID/MID (change to a different carrier branded ROM), or revert to an older version of firmware/software. Depending on your carrier, and which ROM you want to run, it often becomes a practical requirement because the only way to update the firmware is typically through an OTA or RUU, both of which are carrier restricted unless you are S-off. Attempting to run a ROM designed for Lollipop firmware on a phone with KitKat firmware often results in problems like slow bootup, no WiFi, etc.

jshamlet said:
For most people who just want to run alternate ROMs, unlocking the bootloader is sufficient. However, HTCdev does respect carrier wishes, and not all carriers permit their phones to be unlocked. If you get a phone directly from HTC, or really from anyone other than a carrier, it will definitely be unlockable, though.
S-off isn't a requirement to flash ROMs or root - it is only a requirement if you want to manually update firmware, change the CID/MID (change to a different carrier branded ROM), or revert to an older version of firmware/software. Depending on your carrier, and which ROM you want to run, it often becomes a practical requirement because the only way to update the firmware is typically through an OTA or RUU, both of which are carrier restricted unless you are S-off. Attempting to run a ROM designed for Lollipop firmware on a phone with KitKat firmware often results in problems like slow bootup, no WiFi, etc.
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So i definitely want to run roms like on the original htc m8 android development threads which I would assume requires S-off because they aren't in respective carrier subforums. So assuming I buy a sprint/tmobile htc m8, the chances of being able to unlock bootlolader along with s-off are high?

Yeah I have the sprint HTC One m8 and it was running lollipop and I successfully unlocked my bootloader using HTCDev, then rooted and s-offed using sunshine and I couldn't be happier! Keep in mine sunshine costs 25 dollars but it is well worth it

ATalkingRock said:
So i definitely want to run roms like on the original htc m8 android development threads which I would assume requires S-off because they aren't in respective carrier subforums. So assuming I buy a sprint/tmobile htc m8, the chances of being able to unlock bootlolader along with s-off are high?
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Click to collapse
Sprint and T-mobile are two different ball games. Sprint is CDMA, which means you really have to run a ROM designed for their network. Not all ROMs will run on a Sprint (and similarly, Verizon) device because of it. Also, a CDMA phone may support LTE data on a GSM network, but it will not have voice support. Going the other way isn't even an option, as Sprint only allows approved devices on its network, period. Keep that in mind.
T-mobile runs a GSM network, so as long as your firmware/radio supports all of the right frequencies, it will work just fine.
I will say that if you intend to do much carrier hopping, or plan on taking a device between carriers, you will want to S-off. Yes, it's $25, but that will save you a lot of aggravation in the long run. If you are S-off, you can alter the CID/MID of your phone, at which point you can update the firmware and radio to match the carrier you want to use. Then load a custom ROM on top of that.
Finally, S-off and bootloader unlock do not affect the SIM lock at all. That is controlled by the radio, so you will still need to deal with unlock codes. As far as I know, the T-mobile M8 still uses standard subsidy unlock codes, while the newer M9 uses their new "unlock app".

jshamlet said:
Sprint and T-mobile are two different ball games. Sprint is CDMA, which means you really have to run a ROM designed for their network. Not all ROMs will run on a Sprint (and similarly, Verizon) device because of it. Also, a CDMA phone may support LTE data on a GSM network, but it will not have voice support. Going the other way isn't even an option, as Sprint only allows approved devices on its network, period. Keep that in mind.
T-mobile runs a GSM network, so as long as your firmware/radio supports all of the right frequencies, it will work just fine.
I will say that if you intend to do much carrier hopping, or plan on taking a device between carriers, you will want to S-off. Yes, it's $25, but that will save you a lot of aggravation in the long run. If you are S-off, you can alter the CID/MID of your phone, at which point you can update the firmware and radio to match the carrier you want to use. Then load a custom ROM on top of that.
Finally, S-off and bootloader unlock do not affect the SIM lock at all. That is controlled by the radio, so you will still need to deal with unlock codes. As far as I know, the T-mobile M8 still uses standard subsidy unlock codes, while the newer M9 uses their new "unlock app".
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So which do you feel would be wiser? Tmobile/sprint? I'm assuming the roms in the original android development subforum are compatible with these phones? For example blisspop.

ATalkingRock said:
So which do you feel would be wiser? Tmobile/sprint? I'm assuming the roms in the original android development subforum are compatible with these phones? For example blisspop.
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I would advise to stay far away from the Sprint version unless you happen to be using Sprint as your carrier.
The reason being, is that the M8 versions that support CDMA (Sprint, Verizon) actually have different hardware from all other versions. Aside from Sprint, Verizon the dual SIM version, all other M8 versions are the same in hardware, and enjoy much more ROM support, as well as the fact that radio firmware is cross-compatible (with s-off).
The same can't be said for the Sprint version, you can only flash ROMs and radio meant for this version (or maybe Verizon also, but that still doesn't give you many more choices compared to the "GSM" M8).
To my knowledge, the US Developer's Edition is the only version that comes from the factory with an unlocked bootloader (which is a direct from HTC version, as you mentioned). And that version is not too common, and probably comes at a hefty price.
Unlocking the bootloader is a simple matter (for all variants except Verizon, which shouldn't be on the list for the above discussed reasons). So I wouldn't make that much of a consideration when making the purchase choice. I would focus more on SIM unlock. But even that can usually be done by using a paid online service for less than $10 US.
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ATalkingRock said:
So i definitely want to run roms like on the original htc m8 android development threads which I would assume requires S-off because they aren't in respective carrier subforums.
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Click to collapse
That would be an incorrect assumption. Development sections that are not carrier specific will usually be compatible with any "GSM" version of the M8 (but may also support Sprint/Verizon if explicitly noted in the thread).
S-off or s-on is not a requirement for any ROM. Your phone often needs to have updated firmware and/or hboot. But that can be done without s-off.
However, if you need to change the frequency band support (to match what you carrier is using) than you need s-off.

redpoint73 said:
I would advise to stay far away from the Sprint version unless you happen to be using Sprint as your carrier.
The reason being, is that the M8 versions that support CDMA (Sprint, Verizon) actually have different hardware from all other versions. Aside from Sprint, Verizon the dual SIM version, all other M8 versions are the same in hardware, and enjoy much more ROM support, as well as the fact that radio firmware is cross-compatible (with s-off).
The same can't be said for the Sprint version, you can only flash ROMs and radio meant for this version (or maybe Verizon also, but that still doesn't give you many more choices compared to the "GSM" M8).
To my knowledge, the US Developer's Edition is the only version that comes from the factory with an unlocked bootloader (which is a direct from HTC version, as you mentioned). And that version is not too common, and probably comes at a hefty price.
Unlocking the bootloader is a simple matter (for all variants except Verizon, which shouldn't be on the list for the above discussed reasons). So I wouldn't make that much of a consideration when making the purchase choice. I would focus more on SIM unlock. But even that can usually be done by using a paid online service for less than $10 US.
---------- Post added at 11:00 AM ---------- Previous post was at 10:54 AM ----------
That would be an incorrect assumption. Development sections that are not carrier specific will usually be compatible with any "GSM" version of the M8 (but may also support Sprint/Verizon if explicitly noted in the thread).
S-off or s-on is not a requirement for any ROM. Your phone often needs to have updated firmware and/or hboot. But that can be done without s-off.
However, if you need to change the frequency band support (to match what you carrier is using) than you need s-off.
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Hello there !
Just a question .
I'm planning to buy m8 from here : http://uae.souq.com/ae-en/htc-one-m8-16gb-htc-ultrapixel-camera-4g-lte-gunmetal-gray-6793327/i/
I think this one is the International version (I not sure, but in UAE almost all phones are international verions (like qualcomm based samsung etc..)
I think this phone will have bootloader locked and S-ON by default .
I'm aware that bootloader will be unlockable from htc-dev, but what about s-off ????
If I want to install cm12 or the GPE Rom, then can it be done while phone is s-on ????
ALso what's the buzz about phone coming pre-installed with kitkat or lollipop ??? what difference does it make on rooting/unlocking/s-ff process ???

My comment below in red font:
The "A" Factor said:
I'm planning to buy m8 from here : http://uae.souq.com/ae-en/htc-one-m8-16gb-htc-ultrapixel-camera-4g-lte-gunmetal-gray-6793327/i/
I think this one is the International version (I not sure, but in UAE almost all phones are international verions (like qualcomm based samsung etc..) There is virtually no information regarding the phone specs in this listing. At a minimum, I'd verify with the seller before buying: what variant (CID, MID), specific frequency support (GSM, HSPA and LTE) for this version, and if SIM-unlocked.
I think this phone will have bootloader locked and S-ON by default . Almost certainly bootloader locked and s-on. Factory s-off is rare, but it does happen.
I'm aware that bootloader will be unlockable from htc-dev, but what about s-off ???? If desired, s-off by sunshine ($25 US): http://theroot.ninja/
If I want to install cm12 or the GPE Rom, then can it be done while phone is s-on ???? Yes. At most you may need to update hboot and/or firmware by "official" means before modding the phone, and you can do that with s-on.
ALso what's the buzz about phone coming pre-installed with kitkat or lollipop ??? what difference does it make on rooting/unlocking/s-ff process ??? Doesn't matter much to unlocking bootloader, rooting, and s-off.
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redpoint73 said:
My comment below in red font:
Click to expand...
Click to collapse
Thanks for the prompt reply !
You deserve that Recong. Contributor tag !!!!
BTW can the GPE version be installed on the GSM variant (not carrier specific) with S-ON ????

The "A" Factor said:
BTW can the GPE version be installed on the GSM variant (not carrier specific) with S-ON ????
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Click to collapse
Yes, with s-on you can flash GPE based custom ROMs that support the GSM M8.
Some folks like to "fully convert" to GPE by RUU, which does require s-off. But the only reasons to do this are to get official GPE updates; and to get the GPE partition scheme (smaller system or "ROM" partition means you get more user-accessible storage). But aside from those aspects, just flashing a GPE ROM will get you the full GPE experience.
The "A" Factor said:
Thanks for the prompt reply !
You deserve that Recong. Contributor tag !!!!
Click to expand...
Click to collapse
You are quite welcome. Please click the "Thanks" button for any posts you found helpful.

redpoint73 said:
Yes, with s-on you can flash GPE based custom ROMs that support the GSM M8.
Some folks like to "fully convert" to GPE by RUU, which does require s-off. But the only reasons to do this are to get official GPE updates; and to get the GPE partition scheme (smaller system or "ROM" partition means you get more user-accessible storage). But aside from those aspects, just flashing a GPE ROM will get you the full GPE experience.
.
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That's awesome ... Many posts on this forum were misleading, I almost came to conclusion that s-Off is required to flash custom rom ... with s-on only the stock based custom roms can be flashed ...
Does the IR Blaster work with cm or other aosp roms ?????
Also what's your opinion on M8 vs G3 (3gb ram) , apart from cosmetic differences .

The "A" Factor said:
Does the IR Blaster work with cm or other aosp roms ?????
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Click to collapse
I'm not a user of AOSP ROMs on this phone; so I don't know. You'll have to check the ROM threads for more info; unless another user chimes in on this here.
The "A" Factor said:
Also what's your opinion on M8 vs G3 (3gb ram) , apart from cosmetic differences .
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I've never been a big fan of LG devices. The plastic back is still a turnoff to me.
I've seen some folks post on here of switching from the G3 to the M8, and much preferring the M8. While I haven't seen any folks that have claimed the opposite; but maybe you'd need to go to the G3 forum section to read something like that!

redpoint73 said:
I'm not a user of AOSP ROMs on this phone; so I don't know. You'll have to check the ROM threads for more info; unless another user chimes in on this here.
I've never been a big fan of LG devices. The plastic back is still a turnoff to me.
I've seen some folks post on here of switching from the G3 to the M8, and much preferring the M8. While I haven't seen any folks that have claimed the opposite; but maybe you'd need to go to the G3 forum section to read something like that!
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Click to collapse
Cool ... Thanks for your input !
I was just planning to buy a 801 based device for a long run ... I'm currently on Moto G (first Gen.) and this experience is pretty awesome .... It has lot's of development (all the rom are available) and also official Rom updates are regular . I some times wonder why m8 has so many problems in lollipop cm/aosp rom's ... Moto g had stable Rom's since January and M8 is still struggling to get a perfect stable Rom (battery,wifi/blutooth,speaker sound problems,no ambient display) .

jshamlet said:
Sprint and T-mobile are two different ball games. Sprint is CDMA, which means you really have to run a ROM designed for their network. Not all ROMs will run on a Sprint (and similarly, Verizon) device because of it. Also, a CDMA phone may support LTE data on a GSM network, but it will not have voice support. Going the other way isn't even an option, as Sprint only allows approved devices on its network, period. Keep that in mind.
T-mobile runs a GSM network, so as long as your firmware/radio supports all of the right frequencies, it will work just fine.
I will say that if you intend to do much carrier hopping, or plan on taking a device between carriers, you will want to S-off. Yes, it's $25, but that will save you a lot of aggravation in the long run. If you are S-off, you can alter the CID/MID of your phone, at which point you can update the firmware and radio to match the carrier you want to use. Then load a custom ROM on top of that.
Finally, S-off and bootloader unlock do not affect the SIM lock at all. That is controlled by the radio, so you will still need to deal with unlock codes. As far as I know, the T-mobile M8 still uses standard subsidy unlock codes, while the newer M9 uses their new "unlock app".
Click to expand...
Click to collapse
Alright so a little bit of an update. I've got my phone on a carrier which I'll use as a daily driver, however I'd like to purchase the htc one m8 as somewhat of a wifi device only rather than one used on carrier LTE data. With this being said, you'd still recommend tmobile? Also if i look on ebay for unlocked tmobile phones alot of them say bad ESN or bad IMEI is this necessarily bad?

[Q] where to buy?

Hello, I would buy the HTC M8 red, possibly in the 32gb version.
I'm having difficulty finding a store that has available.
I also tried swapped, but sellers indicate that send only in the United States, and I live in Italy.
What do you suggest?
Thank you very much and good evening

Make sure you don't get the Verizon (US carrier) variant. Most red M8 versions are Verizon; although apparently a red version was made for the UK as well (but I'm guessing the red UK version is not very common).
Verizon variant has CDMA antenna (not necessary as your carrier is likely GSM) which also complicates usage of custom ROMs, etc.
Also, Verizon variant is block from bootloader unlock via HTCDev.com (may be able to s-off and unlock bootloader with sunshine exploit, but depends on OS software version on the phone). So if the OS version on the phone is up to date, you might not even be able to root, flash custom ROMs, etc.

many thanks for the answer, really very useful, I did not know anything.
All HTC M8 Red are of Verizon?
So even if it was the UK version, may not be a way to unlock the bootloader and flash new rom?
thank you

redpoint73 said:
Make sure you don't get the Verizon (US carrier) variant. Most red M8 versions are Verizon; although apparently a red version was made for the UK as well (but I'm guessing the red UK version is not very common).
Verizon variant has CDMA antenna (not necessary as your carrier is likely GSM) which also complicates usage of custom ROMs, etc.
Also, Verizon variant is block from bootloader unlock via HTCDev.com (may be able to s-off and unlock bootloader with sunshine exploit, but depends on OS software version on the phone). So if the OS version on the phone is up to date, you might not even be able to root, flash custom ROMs, etc.
Click to expand...
Click to collapse
I found a HTC M8 Red unbranded, of German origin.
I can go quiet, it will have no limitations from you indicated?
I would have full support from communities with different rom etc?
I might as well turn it into Google Play edition?
I am concerned that the 16GB version ...
Thank You

fivemarcus said:
I found a HTC M8 Red unbranded, of German origin.
I can go quiet, it will have no limitations from you indicated?
I would have full support from communities with different rom etc?
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Click to collapse
Versions from the UK and Germany will not be the same as Verizon (US only).
So yes, they should support ROMs and other mods intended for the "international" GSM M8. But I would find out the Model ID (MID) to be sure of what you are buying.
fivemarcus said:
I might as well turn it into Google Play edition?
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Click to collapse
That is a question only you can answer for yourself. Its a personal preference whether you want the GPE interface, or Sense.
Once you have the bootloader unlocked, you can just run an GPE based ROM to see if you like it.
You only need to "fully convert" if you want GPE updates OTA, or the GPE partition layout (system partition is smaller, so there is more user storage). But s-off by sunshine ($25 US) is needed to fully convert (in order to change CID and MID).
But also be aware, that fully converting also changes the band compatibility of the phone. So you will want to make sure your local carrier's 3G and 4G bands are supported by the GPE version, before converting. From what I've read, you can flash a Sense radio to a GPE converted phone. So again, it depends on your individual needs, and how you intend to go about things.
fivemarcus said:
I am concerned that the 16GB version ...
Click to expand...
Click to collapse
Again, it depends on your personal preferences and needs.
I agree that 16 GB is not much internal storage, especially if you like to install lots of apps, or download large files.
The phone has a MicroSD slot, so you can use a removable card to greatly expand your media storage for videos, music, photos, etc. But for things that need to be on internal storage, 16GB can be very constraining. You can also move some apps to the removable SD, but not all apps support it (so its not as good as having more internal storage).

redpoint73 said:
So yes, they should support ROMs and other mods intended for the "international" GSM M8. But I would find out the Model ID (MID) to be sure of what you are buying.
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Click to collapse
The seller told me with these codes:
Product code: 99HYK256-00
EAN / UPC: 4718487655779
What can you tell me about it?
P.S. I read in your signature, you are using the m8.
The thing reassures me

fivemarcus said:
The seller told me with these codes:
Product code: 99HYK256-00
EAN / UPC: 4718487655779
What can you tell me about it?
Click to expand...
Click to collapse
Hard to tell from those codes, but just Googling the Product Code, it looks like a German GSM variant (and not the US Verizon/Sprint CDMA versions you want to stay away from).

Convert a H815T to UK (euro version)

Can you convert a H815T (Hong Kong) version to a UK (Euro) version using the correct files when rooting? So if I use the International H815 10c Version files will this change it to Euro verions?

What do you mean by Euro version? What do you want to change? I don't think you can do what you want by flashing a different system image.

I think he's looking for root? Same as myself.
Sent from my LG-H815 using Tapatalk

gadget069 said:
I think he's looking for root? Same as myself.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
I'm not so sure.
But if you have the H815 you can root using the international files posted in the root thread.

Too many versions if the 815. I don't believe the 815t is rootable yet.
Sent from my LG-H815 using Tapatalk

gadget069 said:
Too many versions if the 815. I don't believe the 815t is rootable yet.
Sent from my LG-H815 using Tapatalk
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Click to collapse
Yes it is.

Yeah I was asking if the H815T you could you use the H815 files and you can.
I could get the H815T cheap but found a selling the H815 for the same price so I don't need this anymore. Only if LG could stop making a million different variants and confusing people
But thanks for all your help guys.

I bought the H815T because of band 40 support, which Optus uses.
I used the international H815 10c image to root mine.

Optus are shipping the H815T, Telstra are shipping H815K (which is missing quite a few bands compared to the T). I have one of the Optus H815Ts. Im not prepared to flash a slightly mis-matching system.img and would much prefer to make my own. Ive not let the firmware update yet, and the download mode shell works. But the recovery block device isnt present preventing TWRP from being flashed in.
I dont think 'converting' a H815T to a euro would help with the unlock at all, because I think the key is not a flag but a hash (unconfirmed, the hex key gen thing could be a bluff) and the hash is generated after LG lookup your device ID. Even if you changed to the euro firmware, I think LG would still consider your device a 'T'.

I have been looking for a root method for the T version but it dosent appear possible yet.
Sent from my LG-H815 using Tapatalk

antus said:
Optus are shipping the H815T, Telstra are shipping H815K (which is missing quite a few bands compared to the T). I have one of the Optus H815Ts. Im not prepared to flash a slightly mis-matching system.img and would much prefer to make my own. Ive not let the firmware update yet, and the download mode shell works. But the recovery block device isnt present preventing TWRP from being flashed in.
I dont think 'converting' a H815T to a euro would help with the unlock at all, because I think the key is not a flag but a hash (unconfirmed, the hex key gen thing could be a bluff) and the hash is generated after LG lookup your device ID. Even if you changed to the euro firmware, I think LG would still consider your device a 'T'.
Click to expand...
Click to collapse
This is correct. Were going to be waiting a while for a bootloader unlock. Telstra/ Optus certianly wont release one so were relying on someone to claim the bounty and figure out an exploit.
Just FYI if your looking for ROOT you can use the Low Effort Root and flash a euro version, but you wont be able to unlock the bootloader.
Also if you just want Marshmallow on your Telstra or Optus phone you dont need to unlock the bootloader, you can simply run LGUP and flash the 20b files to it. (you cant have Marshmallow and root as far as I'm aware)
Anyone in this thread have h815k original system.img file? or a rooted system.img file? Reason is I flashed the 10c version for root but now I want to run LGUP so I need to reflash to stock and I didnt backup (silly me).
Let me know thanks guys

TiMilk said:
This is correct. Were going to be waiting a while for a bootloader unlock. Telstra/ Optus certianly wont release one so were relying on someone to claim the bounty and figure out an exploit.
Just FYI if your looking for ROOT you can use the Low Effort Root and flash a euro version, but you wont be able to unlock the bootloader.
Also if you just want Marshmallow on your Telstra or Optus phone you dont need to unlock the bootloader, you can simply run LGUP and flash the 20b files to it. (you cant have Marshmallow and root as far as I'm aware)
Anyone in this thread have h815k original system.img file? or a rooted system.img file? Reason is I flashed the 10c version for root but now I want to run LGUP so I need to reflash to stock and I didnt backup (silly me).
Let me know thanks guys
Click to expand...
Click to collapse
So is it dangerous to go from 815K to 815T as radio bands are different? i changed from Telstra to Optus so wondering if I can do this...

Need help to unlock bootloader and root my HTC one m8x

Hey guys i have an HTC one m8x Model: OP6B110, i dont know a lot about this cell phone, i had a Sony xperia z2 before. I need help to unlock bootloader and root the HTC in order to unlock aditional LTE bands. I cant navigate on LTE just 3g. Im running Android 6.0 and Sense 7, couldn't find any tutorial for this. Thanks in advantage.

Have had an m8x since launch and as far as I know the device is identical to the m8. So every guide for the m8 should work for the m8x

Wallee97 said:
So every guide for the m8 should work for the m8x
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Click to collapse
It should be noted that most guides are outdated at this point, and reference wrong versions TWRP (depends on Android build on the phone), SuperSU (recommend current stable 2.76) or mention firewater instead of sunshine s-off).
But otherwise, yes the process to unlock the bootloader, install TWRP and root the M8x is basically the same as the M8.

Vomer's guide, while dated, is still mostly relevant for what you want. You only need to do Section 0 and 1 in order to unlock bootloader and root:
http://forum.xda-developers.com/htc-one-m8/general/vomerguides-m8-bootldr-unlock-s-off-t2800727
I believe the only thing that is outdated in those section, is the TWRP version. You should use TWRP 3.0 from here: https://dl.twrp.me/m8/
And somewhat obvious, the command to flash TWRP will need to have the appropriate file name (with newer version number).
Don't follow guide Sections 2, etc. They aren't necessary to unlock bootloader and root, and the info is not longer accurate (firewater s-off no longer works).

redpoint73 said:
Vomer's guide, while dated, is still mostly relevant for what you want. You only need to do Section 0 and 1 in order to unlock bootloader and root:
http://forum.xda-developers.com/htc-one-m8/general/vomerguides-m8-bootldr-unlock-s-off-t2800727
I believe the only thing that is outdated in those section, is the TWRP version. You should use TWRP 3.0 from here: https://dl.twrp.me/m8/
And somewhat obvious, the command to flash TWRP will need to have the appropriate file name (with newer version number).
Don't follow guide Sections 2, etc. They aren't necessary to unlock bootloader and root, and the info is not longer accurate (firewater s-off no longer works).
Click to expand...
Click to collapse
Dude THANKS A LOT! i was able to unlock and root my phone, now i need to unlock the LTE bands.
I have this: LTE band 3(1800), 7(2600), 8(900), 20(800) - EMEA active on my phone, i need to unlock this bands:
- VIVA: 2100 download, 1700 upload, band 4.
- TIGO: AWS(B4) and 700(B17)
- ENTEL: 700MHz (BC12, BC13, BC17, BC28, BC44)
Mainly the TIGO bands. I was looking for any tutorial here and all seems to be outdated. If u can help me ill be grateful.

efirahola said:
i was able to unlock and root my phone, now i need to unlock the LTE bands.
Click to expand...
Click to collapse
Root by itself doesn't allow you to unlock the bands on this device.
The only working method I know of to change the band support, is to get s-off with sunshine ($25 US) and flash another radio baseband. Even then, a lot of folks have still failed to connect to their local carrier's LTE network, despite flashing the radio baseband with the proper LTE band support (or even full conversion by RUU). Not sure why this is happening, and haven't seen any solution, unfortunately. And due to this, it may not be worth spending the money on sunshine s-off, considering the risk of not getting the result you want.
My apologies, I didn't read your OP well enough to realize that unlocking LTE bands was the purpose for your rooting (just that you wanted to unlock bootloader and root). Otherwise, I would have advised this sooner.
Root is needed to perform sunshine s-off. But there is a lot more involved then just root, and you may or may not consider it worth the $ to try.

Yeah that was the main purpose of this topic... i have read a lot of guides but anything works for me, dunno whats wrogn bc theres ppl who could reach that goal to unlock some LTE bands. I really love this phone but im tired to have just 3g or 2g thats is pretty slow here. If theres a chance to unlock just this 2 bands: AWS(B4) y 700(B17) without spending money ill be the happiest man. Dunno if i did well rooting my device, tought it will help to my goal.

Hi All,
I also have HTC One m8 dual sim and want to root the device running Android 6.0. I tried step by step instructions provided in this guide however I can not proceed as I don't have fast boot option under settings\power. I am not a techi guy so not sure how to proceed further. Appreciate any advise or link to instruction for my version of device/Android.
Thanks

efirahola said:
Yeah that was the main purpose of this topic... i have read a lot of guides but anything works for me, dunno whats wrogn bc theres ppl who could reach that goal to unlock some LTE bands.
Click to expand...
Click to collapse
I can't speak to any of that, unless you refer to the specific mods/methods, etc.. Are those mods for this phone (M8) or some other phone entirely? If you are talking about the mod for modifying the NV values, as already stated, this only work on the Verizon and Sprint versions of the M8 (versions that support CDMA networks). On all other versions, the NV values are locked, and will return to default upon reboot.
If you are talking about mods for other phones entirely, those methods don't apply to the M8. Every phone has its own peculiarities and nuances.
efirahola said:
If theres a chance to unlock just this 2 bands: AWS(B4) y 700(B17) without spending money ill be the happiest man.
Click to expand...
Click to collapse
You need s-off to modify the radio baseband, that's the plain truth. And you need to spend money ($25 by sunshine) to get s-off.
One thing you can check, is look on the bootloader screen and see if its s-on or s-off; in the unlikely event that its already s-off (a small number come s-off from the factory, some will have been modified by a former owner or seller).

Can I convert a cdma htc 10 to a us unlocked

is it possible to convert a sprint htc 10 to unlocked Im fairly sure a vzw can be converted but i dont know about sprint... also are sprint varrients sim unlocked? I ask because they seem to be the cheapest in the us aftermarket...
update (found out how to sim unlock, just need to know if it can be converted?)

You *may* be able to install a ROM for that version, but you can't change the hardware, so I'd look in to what bands, frequencies, etc. that each can use.

THC Butterz said:
is it possible to convert a sprint htc 10 to unlocked Im fairly sure a vzw can be converted but i dont know about sprint... also are sprint varrients sim unlocked? I ask because they seem to be the cheapest in the us aftermarket...
update (found out how to sim unlock, just need to know if it can be converted?)
Click to expand...
Click to collapse
What carrier? I have a Sprint variant working extremely well (Viper ROM Nougat) under T-Mobile, both bands 4(LTE) and 2(4G).

THC Butterz said:
is it possible to convert a sprint htc 10 to unlocked Im fairly sure a vzw can be converted but i dont know about sprint... also are sprint varrients sim unlocked? I ask because they seem to be the cheapest in the us aftermarket...
update (found out how to sim unlock, just need to know if it can be converted?)
Click to expand...
Click to collapse
I converted my vzw to unlocked for use on T-Mobile. Zero problems.
Sent from my HTC 10 using Tapatalk

Yes. I have a sprint converted to us unlocked on ATT network. I had to S-Off, then use ADB to change CID to 111111 and MID to 2PS65, then run the US Unlocked RUU off HTC website.

bluemooncityzen225 said:
Yes. I have a sprint converted to us unlocked on ATT network. I had to S-Off, then use ADB to change CID to 111111 and MID to 2PS65, then run the US Unlocked RUU off HTC website.
Click to expand...
Click to collapse
And you swapped the radio back to Sprint correct?

jblparisi said:
And you swapped the radio back to Sprint correct?
Click to expand...
Click to collapse
Well, to be completely honest, I am still in the Learning stages so I don't know if it were pure luck, but I originally didnt flash any Radio. I literally just ran the RUU, popped in ATT SIM, and it worked. However, I did later encounter a problem possibly related to this. I tried to apply an OTA zip update, and I flashed the Unlocked OTA. Which ended up making my IMEI disappear and the fix ended up being flashing the Sprint radio to the device. I'm still not sure, but I think the issue occurred bc even though my MID is US Unlocked my device still isn't technically US Unlocked so it was the wrong firmware. As for SIM unlocking, I followed the same thread for SIM unlocking the M9 using the NV and Basic Flasher Tools and it worked.

bluemooncityzen225 said:
Well, to be completely honest, I am still in the Learning stages so I don't know if it were pure luck, but I originally didnt flash any Radio. I literally just ran the RUU, popped in ATT SIM, and it worked. However, I did later encounter a problem possibly related to this. I tried to apply an OTA zip update, and I flashed the ATT OTA. Which ended up making my IMEI disappear and the fix ended up being flashing the Sprint radio to the device. I'm still not sure, but I think the issue occurred bc even though my MID is ATT's, my Device still isn't technically ATT so it was the wrong firmware. As for SIM unlocking, I followed the same thread for SIM unlocking the M9 using the NV and Basic Flasher Tools and it worked.
Click to expand...
Click to collapse
That's very interesting, can you share the exact RUU you used?
Thanks for replying.

jblparisi said:
That's very interesting, can you share the exact RUU you used?
Thanks for replying.
Click to expand...
Click to collapse
Yes I can try to find it. Obviously it was more than just putting the SIM in, I had unlocked and S-off'd and what not before. I know it was the first Nougat firmware they had for the US Unlocked. I want to say I was on Sprint 1.81xXxX and the unlocked was 2.14xxxx. I'll look it up.

jblparisi said:
That's very interesting, can you share the exact RUU you used?
Thanks for replying.
Click to expand...
Click to collapse
Sorry it took so long, I was uploading the RUU I believe I used. I also have the sprint radio, stock recovery and a few other things in this folder. https://www.dropbox.com/sh/ftaxcqmli8r0m40/AAANfuxJGiyyqaFWpAi6aDFfa?dl=0
And here's a link to the 1.80 US Unlocked RUU
https://www.androidfilehost.com/?fid=24591023225176310

bluemooncityzen225 said:
Sorry it took so long, I was uploading the RUU I believe I used. I also have the sprint radio, stock recovery and a few other things in this folder. https://www.dropbox.com/sh/ftaxcqmli8r0m40/AAANfuxJGiyyqaFWpAi6aDFfa?dl=0
And here's a link to the 1.80 US Unlocked RUU
https://www.androidfilehost.com/?fid=24591023225176310
Click to expand...
Click to collapse
Thank you very much for that.
I am currently SIM unlocked (NV Method), S-OFF and running Viper N with Sprint Radio. I am going to revert back to stock Sprint to replicate what you did.

jblparisi said:
Thank you very much for that.
I am currently SIM unlocked (NV Method), S-OFF and running Viper N with Sprint Radio. I am going to revert back to stock Sprint to replicate what you did.
Click to expand...
Click to collapse
Just so you know, Sunshine S-Off is all you need to sim unlock your phone.

xunholyx said:
Just so you know, Sunshine S-Off is all you need to sim unlock your phone.
Click to expand...
Click to collapse
I'm still unclear. I'm Verizon s-off. All I need to do is change my Cid to unlocked us then flash an unlocked ruu to change the radios so I can use T-Mobile? Of course I need to reflash twrp so I can get my Viper10 back on.

xunholyx said:
Just so you know, Sunshine S-Off is all you need to sim unlock your phone.
Click to expand...
Click to collapse
Are you positive about that? This was a Sprint locked device.
---------- Post added at 09:24 PM ---------- Previous post was at 09:23 PM ----------
acupunk said:
I'm still unclear. I'm Verizon s-off. All I need to do is change my Cid to unlocked us then flash an unlocked ruu to change the radios so I can use T-Mobile? Of course I need to reflash twrp so I can get my Viper10 back on.
Click to expand...
Click to collapse
Verizon LTE devices are SIM unlocked by default to all carriers.

jblparisi said:
Verizon LTE devices are SIM unlocked by default to all carriers.
Click to expand...
Click to collapse
Really? With all the bands? Also. I want to get wifi calling to work.

acupunk said:
Really? With all the bands? Also. I want to get wifi calling to work.
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=70104011&postcount=3
If you are on nougat firmware already, once you get CID setup, use the latest us unlocked RUU.
test everything on stock before throwing viper on

acupunk said:
Really? With all the bands? Also. I want to get wifi calling to work.
Click to expand...
Click to collapse
Yes specifically 4G LTE devices. Without touching anything you should be able to insert a SIM for any GSM carrier and it will pick up a signal, and yes ALL LTE bands but I believe you may have to convert to another radio for better compatibility.
All other things you better off converting to US Unlocked or T-Mobile. Those have WiFi integrated for supported carriers.

Totally worked with my Verizon phone. Changed the cid in fastboot and flashed a no wipe us unlocked firmware from sneakyghost. Unfortunately it wiped everything, but I was backed up, so no biggie. Thanks everyone!

bluemooncityzen225 said:
Yes. I have a sprint converted to us unlocked on ATT network. I had to S-Off, then use ADB to change CID to 111111 and MID to 2PS65, then run the US Unlocked RUU off HTC website.
Click to expand...
Click to collapse
Sorry to dredge up such an old post, but google led me here. Do you know if it's possible to run the RUU off of HTC website on Linux? I tried installing HTC SyncManager via Wine and it kept crashing.

me_three said:
Sorry to dredge up such an old post, but google led me here. Do you know if it's possible to run the RUU off of HTC website on Linux? I tried installing HTC SyncManager via Wine and it kept crashing.
Click to expand...
Click to collapse
It depends what format the RUU is in. If it is .exe then no. If it is .zip it should work