[Q]at&t unocked vs international factory unlocked - AT&T HTC One (M8)

I want to buy one m8. what is the difference between at&t factory unlocked and international factory unlocked version. can i flash roms in international version thread on at&t factory unlocked model directly??

---

Yes you can flash any rom you want from the international thread. I am currently running Android Revolution.
Sent from my unknown using XDA Premium 4 mobile app

---

The 3G and LTE band compatibility is different. Do you intend to use on the AT&T network? If so, the "international" (EMEA) version is compatible with AT&T's 3G bands (850 and 1900 MHz); but lacks both of the LTE bands used by AT&T (700 and 1700 MHz) according to this: http://www.gsmarena.com/htc_one_(m8)-6074.php
Not band compatibility is set in hardware, and cannot be changed by flashing different software (ROM, radio, etc.). This means the EMEA version cannot be used on AT&T's LTE network, not matter what you do.
If using on a carrier besides AT&T, I'd check the band compatibility with what your carrier uses. Even if the AT&T version is compatible (with you carrier), I'd probably recommend the international version over it (if compatible as well). The AT&T version is loaded with crappy AT&T bloat and limitations. For instance, WiFi hotspot is blocked, so bootloader needs to be unlocked and the phone rooted in order to make it work on other networks.
Plus, there is the ugly AT&T logo on the back.

---

Just thought i would bump this thread instead of making a new one. I bought an unlocked at&t htc one m8 off of ebay that i plan to use in another country (i study abroad). I already checked that the frequency bands are compatible, etc. Here's the thing, i don't want my phone to have anything to do with at&t other than the logo in the back. In other words, i want to make it as similar as posible (if not exactly the same) to the international unlocked version. Is this possible with just software changes, etc? (i've read the phones are the same in terms of hardware). I want to remove all at&t bloatware and limitations. can someone please give me quick explanations of what i need to do or point me in the right direction? I'm not new to xda or rooting, but the only smartphone i've ever had is a samsung vibrant (which i've rooted and flashed roms countless times).. this is my first htc phone, so im not very familiar with htcdev or s-off.. but i learn quickly.
I would really appreciate some help

---

Maelstrom08 said:
Just thought i would bump this thread instead of making a new one. I bought an unlocked at&t htc one m8 off of ebay that i plan to use in another country (i study abroad). I already checked that the frequency bands are compatible, etc. Here's the thing, i don't want my phone to have anything to do with at&t other than the logo in the back. In other words, i want to make it as similar as posible (if not exactly the same) to the international unlocked version. Is this possible with just software changes, etc? (i've read the phones are the same in terms of hardware). I want to remove all at&t bloatware and limitations. can someone please give me quick explanations of what i need to do or point me in the right direction? I'm not new to xda or rooting, but the only smartphone i've ever had is a samsung vibrant (which i've rooted and flashed roms countless times).. this is my first htc phone, so im not very familiar with htcdev or s-off.. but i learn quickly.
I would really appreciate some help
Click to expand...
Click to collapse
Then I suggest you start reading...
http://forum.xda-developers.com/htc-one-m8?nocache=1
Look in there and
https://www.youtube.com/results?search_query=htc+one+m8+root
I have the ViperOneM8 rom installed. What is even cool is in the tweeks, you can change the AT&T bootup and logoff screen to a viperone screen. And change the AT&T logo in the pull down menu to any picture you want. s-off isn't really needed unless you plan on changing the kernel.

---

Maelstrom08 said:
Just thought i would bump this thread instead of making a new one. I bought an unlocked at&t htc one m8 off of ebay that i plan to use in another country (i study abroad). I already checked that the frequency bands are compatible, etc. Here's the thing, i don't want my phone to have anything to do with at&t other than the logo in the back. In other words, i want to make it as similar as posible (if not exactly the same) to the international unlocked version. Is this possible with just software changes, etc? (i've read the phones are the same in terms of hardware). I want to remove all at&t bloatware and limitations. can someone please give me quick explanations of what i need to do or point me in the right direction? I'm not new to xda or rooting, but the only smartphone i've ever had is a samsung vibrant (which i've rooted and flashed roms countless times).. this is my first htc phone, so im not very familiar with htcdev or s-off.. but i learn quickly.
Click to expand...
Click to collapse
What you describe is easy to do by just unlocking the bootloader, installing custom recovery, and flashing any international based stock rooted ROM or custom ROM. I basically have done the same, as even though AT&T is my carrier, I absolutely hate their branding, non-standard signal icons, bloatware, and limitations (particularly Wifi Hotspot/tethering).
As the previous user already suggested, learning and reading is the best thing for you to do. Don't proceed until you have a good understanding of the concepts and process. My Index thread (specific to the AT&T versions) is a good place to start up reading: http://forum.xda-developers.com/showthread.php?t=2751432

---

Great, thanks for the information and guidance guys. i'll definitely spend the next couple days reading before rooting the device, i can't afford to brick it. Any other tips or advices as to how to go about rooting, etc?

---

Developer build device and ATT device are same exact hardware, ONLY difference is ones sim locked and other isnt, bought 2 developer device from [email protected]'s both run fine on ATT networks...

---

Maelstrom08 said:
Great, thanks for the information and guidance guys. i'll definitely spend the next couple days reading before rooting the device, i can't afford to brick it. Any other tips or advices as to how to go about rooting, etc?
Click to expand...
Click to collapse
no additional advice. I think red point has a wonderful index that should work well for you.
I just wanted to tell you what a wonderfully refreshing attitude you have . Feel free to PM me anytime if you have any specific questions.

---

Maelstrom08 said:
Any other tips or advices as to how to go about rooting, etc?
Click to expand...
Click to collapse
If you look at my Index thread I linked above, the first item under "Unlock Bootloader, ROOT, S-Off" is an excellent step-by-step guide to rooting. There really isn't much I can't add, the guide is so thorough. But I'd still advise to read around and make sure you fully understand all the concepts and steps, and not just blindly follow the guide.
If the goal is to install a custom ROM, you can stop before the step in guide where it says to flash SuperSU (after flashing TWRP), and just put a ROM on the phone and flash in recovery similar to how you have done in the past. The guide is written with the intent of staying on the stock ROM and rooting.
One tip I can give, is that you may notice there are some Toolkits that attempt to automate some of the process (bootloader unlock, custom recovery, root, etc.). I would actually recommend avoiding the use of these. Reason being, the steps aren't actually all that hard to do "manually", plus these toolkits (while well meaning) shortcut the learning process, and rob you of a valuable learning opportunity.

---

I'm assuming OP doesn't want a custom ROM or root. Just to convert the AT&T branded model to a stock unlocked model, and still get OTA updates. This is possible. You need to unlock the bootloader, get S-OFF, and then follow this guide (you can skip step 1, changing MID): http://forum.xda-developers.com/htc-one-m8/general/change-wwe-m8-to-dev-edition-ota-t2826567

---

mindmajick said:
no additional advice. I think red point has a wonderful index that should work well for you.
I just wanted to tell you what a wonderfully refreshing attitude you have . Feel free to PM me anytime if you have any specific questions.
Click to expand...
Click to collapse
Thanks a lot man, you seem to have a really nice personality yourself as well. I'll definitely take you up on that offer when I get a chance.
redpoint73 said:
If you look at my Index thread I linked above, the first item under "Unlock Bootloader, ROOT, S-Off" is an excellent step-by-step guide to rooting. There really isn't much I can't add, the guide is so thorough. But I'd still advise to read around and make sure you fully understand all the concepts and steps, and not just blindly follow the guide.
If the goal is to install a custom ROM, you can stop before the step in guide where it says to flash SuperSU (after flashing TWRP), and just put a ROM on the phone and flash in recovery similar to how you have done in the past. The guide is written with the intent of staying on the stock ROM and rooting.
One tip I can give, is that you may notice there are some Toolkits that attempt to automate some of the process (bootloader unlock, custom recovery, root, etc.). I would actually recommend avoiding the use of these. Reason being, the steps aren't actually all that hard to do "manually", plus these toolkits (while well meaning) shortcut the learning process, and rob you of a valuable learning opportunity.
Click to expand...
Click to collapse
Yeah, I plan on doing it manually. Thanks for all the good advise man. I'm liking what I see in these forums, I'm glad I landed here.
Sorry it took me this long to reply guys, I have been very busy in the past week. Time to learn me some HTC one m8.
Sent from my HTC One_M8 using XDA Free mobile app

---

One last question guys, hopefully somebody can answer me. I've already read a few topics on the terminology used (s-off, ruu, htcdev, etc.), and things don't seem to be too far from what i thought they were. I'm ready to root and flash a custom rom, but here's my question:
I'm a very methodical person, i like to know what I'm doing and that it's the right way to do it. When i flashed a new rom (or rom version) on my samsung vibrant i would do a full wipe (factory reset, clear chache, clear dalvik cache, format system, and format data) before flashing, then i would flash the rom, and then i would flash the rom on top of itself without doing a full wipe. This method worked for me for over 3 years and kept me from getting common bugs some people complained about. Is it fine if i do this with my m8? (i mainly want to know if it can cause problems).. What's your common flash routine?
Thanks for the help guys

---

I am simple, I do what you do except the double flash.
Sent from my HTC One_M8 using Tapatalk

---

Maelstrom08 said:
I'm a very methodical person, i like to know what I'm doing and that it's the right way to do it. When i flashed a new rom (or rom version) on my samsung vibrant i would do a full wipe (factory reset, clear chache, clear dalvik cache, format system, and format data) before flashing, then i would flash the rom, and then i would flash the rom on top of itself without doing a full wipe. This method worked for me for over 3 years and kept me from getting common bugs some people complained about. Is it fine if i do this with my m8? (i mainly want to know if it can cause problems).. What's your common flash routine?
Click to expand...
Click to collapse
What you've stated is fine. Although factory reset already wipes data, cache and Dalvik, so its a bit redundant.
I'm the opposite of methodical (at least in the way you describe). I like to get things done with as few steps as possible (while still doing it right). I've similarly been flashing ROMs on Android devices for 4 years (4 HTC devices and 2 Samsung). But I hardly ever wipe system (flashing a ROM does that by default) and never double flash, and I've never had any issues I would attribute to flashing methods.
Some folks will swear by wiping system for every ROM flash, but honestly while there is nothing wrong with it, I don't believe in it and almost never do it (unless sometimes where the ROM specifically says to do so in the instructions).
On the other hand, there is nothing wrong with redundancy, and if you like to be methodical and thorough I would say just keep doing what you have been doing.

---

Hi there,
i hope that i will get better answer here.
My question is that i have m8 cell htc, but the problem is i dont know how to check what software was intalled in it at beginnig, i installed at&t marshmallow but want to know weather it was of at&t of international and device does not have any icon on the back of the device. thanks

---

bilalkamal said:
Hi there,
i hope that i will get better answer here.
My question is that i have m8 cell htc, but the problem is i dont know how to check what software was intalled in it at beginnig, i installed at&t marshmallow but want to know weather it was of at&t of international and device does not have any icon on the back of the device. thanks
Click to expand...
Click to collapse
Do fastboot getvar all, and post the results (delete IMEI and serial number before posting) and if we look at that info, we can probably determine what version it is.