I was curious if anyone that had unlocked the AT&T version of the duo has been able to use the esim functionality.
The AT&T version does not support esim. I am trying to get an unlocked rom to test but so far did not find a copy of the image yet
tiankong said:
The AT&T version does not support esim. I am trying to get an unlocked rom to test but so far did not find a copy of the image yet
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If you could give a heads up if/when you do, that'd be great. I'll do likewise.
My other question is, there shouldn't be any issues flashing an unlocked stock ROM on an unlocked AT&T device should there?
Hardware wise, are they identical? With the differences merely being the preinstalled bloat, and it being (software) locked to a network?
Related
I'm wondering if anyone has done this and what it does (if anything) to the available frequencies. I'm hoping that an unlocked international variant with the developer ROM will allow access to the 1700/2100 frequencies, so the device could be used on TMo USA. Is this possible, or are the available frequencies simply not affected by the installed ROM?
Thanks.
jandref said:
I'm wondering if anyone has done this and what it does (if anything) to the available frequencies. I'm hoping that an unlocked international variant with the developer ROM will allow access to the 1700/2100 frequencies, so the device could be used on TMo USA. Is this possible, or are the available frequencies simply not affected by the installed ROM?
Thanks.
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Click to collapse
As of right now, you will likely brick the phone if you flash a firmware not designed for your version of the phone. I don't think anyone has figured out how to flash the radio separately from the firmware yet. I'm holding off buying the 920 until someone figures it out
hawc1506 said:
As of right now, you will likely brick the phone if you flash a firmware not designed for your version of the phone. I don't think anyone has figured out how to flash the radio separately from the firmware yet. I'm holding off buying the 920 until someone figures it out
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Click to collapse
Bummer. Thanks anyway.
May have to go with an unlocked Rogers, but the branding and lack of colors beyond black and (eventually) yellow is disappointing.
I just got a new unlocked AT&T M8, switched over from iPhone. I'm going to be using it with T-Mobile, and I'm still struggling to learn how all this stuff works. So the phone is running on Android 4.4.4 currently, and I want to install a custom ROM on it, but I need Android 5.0. Since I have a T-Mobile sim card, I don't have any OTA updates. From what I understand, if I wanted to switch to a T-Mobile ROM, I'd have to pay $25 for Sunshine, which I'd rather not do. Would I also need to do so to get an international ROM? Also, from what I'm reading, my other option is to use the AT&T RUU from HTC's website to update to 5.0, and then install a custom ROM from there. Is this correct, would that remove my unlock, and are there instructions/recommended readings before I try anything? Thanks for any help.
grant523 said:
I just got a new unlocked AT&T M8, switched over from iPhone. I'm going to be using it with T-Mobile, and I'm still struggling to learn how all this stuff works. So the phone is running on Android 4.4.4 currently, and I want to install a custom ROM on it, but I need Android 5.0. Since I have a T-Mobile sim card, I don't have any OTA updates. From what I understand, if I wanted to switch to a T-Mobile ROM, I'd have to pay $25 for Sunshine, which I'd rather not do. Would I also need to do so to get an international ROM? Also, from what I'm reading, my other option is to use the AT&T RUU from HTC's website to update to 5.0, and then install a custom ROM from there. Is this correct, would that remove my unlock, and are there instructions/recommended readings before I try anything? Thanks for any help.
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You probably want the T-Mob radio software, so you can enable the 3G and LTE bands used by T-Mob. Otherwise, you will find that the AT&T radio does not give you 3G and LTE in many locations.
In order to flash another carrier's radio, you need s-off, and there is no way around that. Then you need to change the carrier ID (CID) and model ID (MID) to that of T-Mob.
At that point, you may as well RUU to a stock factory T-Mobile software image (not just the radio) and that would be recommended, is it will get you a complete T-Mobile "baseline" phone as opposed to an AT&T ROM with T-Mob radio, etc.
After running the T-Mob RUU, your phone will be "fully converted" to the T-Mob version in terms of software. Others here have converted the AT&T version for use on T-Mob. So I'll try to find one of those threads instead of trying to explain it all again.
None of these mods will change your SIM unlock. That will remain unlocked.
---------- Post added at 11:06 AM ---------- Previous post was at 10:58 AM ----------
Here you go: http://forum.xda-developers.com/att-htc-one-m8/help/installing-tmobile-rom-att-branded-phone-t3069388
Another point: You can update to the latest AT&T Lollipop software by RUU. And you can flash custom Lollipop ROMs after that. But neither of these will enable the 3G and LTE bands used by T-Mob. So that is why I suggest "converting" the phone to T-Mob stock software instead.
Thanks for the response! Appreciate it. A few more questions, since I'm not sure I fully grasp the concept of radios.
If I first flash a T-Mobile ROM, and then install a custom ROM, is that any different from updating with a AT&T RUU and then installing a custom ROM? Will I still be missing the bands?
If yes, then should I just stay away from Custom ROMs all together? Is this a problem because I bought an AT&T phone?
Thanks again!
grant523 said:
Thanks for the response! Appreciate it. A few more questions, since I'm not sure I fully grasp the concept of radios.
If I first flash a T-Mobile ROM, and then install a custom ROM, is that any different from updating with a AT&T RUU and then installing a custom ROM? Will I still be missing the bands?
If yes, then should I just stay away from Custom ROMs all together? Is this a problem because I bought an AT&T phone?
Thanks again!
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Click to collapse
Yes it's different the AT&T ruu won't give you the T-Mobile bands. And you can install custom roms if you want but I would reccomend paying the $25 to s-off and fully converting to t-mobile and either stay on stock or flash a custom t-mobile rom
grant523 said:
A few more questions, since I'm not sure I fully grasp the concept of radios.
If I first flash a T-Mobile ROM, and then install a custom ROM, is that any different from updating with a AT&T RUU and then installing a custom ROM? Will I still be missing the bands?
Click to expand...
Click to collapse
I think your first phrase was intended to read "flash the T-Mob RUU, then install a custom ROM".
The radio is not contained in the ROM, and flashing a ROM doesn't affect the radio in any way.
The radio is contained in what many folks here called the "firmware package" or firmware.zip; and it can be installed by flashing the RUU.
Another thing that will help you understand, is that the phone has something like 36 (or more) partitions. The ROM is just one of those. The radio is a separate partition (as bootloader, recovery, and others have their own separate partitions as well). Flashing one partition, does not effect the others. The RUU is a complete software image that flashes all the partitions to factory stock for a certain carrier version.
You can also flash the radio or firmware.zip manually (without flashing the whole RUU). But my personal recommendation would be to baseline to a fully stock T-Mobile software profile, since you are on the T-Mob network, to make sure every partition plays well together (as opposed to mixing T-Mob and AT&T software components).
grant523 said:
If yes, then should I just stay away from Custom ROMs all together?
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Click to collapse
I wouldn't say that. Custom ROMs have their place. But a custom ROM will not open up the T-Mob bands. As mentioned, you can only do that by flashing the radio, which isn't affected by flashing the ROM.
After baselining to a T-Mob stock config as I've suggested, you can feel free to flash a custom recovery and flash custom ROMs if you like. But if would be for other reasons than the radio bands; such as performance, customization, debloating, etc..
grant523 said:
Is this a problem because I bought an AT&T phone?
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Basically yes. If you want to be sure a phone works fully on a certain network "out of the box", you should buy the phone that is branded for that network. Otherwise, you should always thoroughly research a phone (not branded for your carrier) before trying to use it on your network.
Luckily for you, on this device the radio bands can be changed in software using the mods I've noted above. On past devices, the band support was set in hardware, meaning where was no way to change it in software. In that case, you would really have some buyer's remorse to deal with.
Ah OK thanks for the responses! I think I'm starting to understand. I did research how an At&t m8 would work with T-MOBILE but I didn't realize i would have to go throw this whole software process to make it work! Anyhow I appreciate the help and I'll buy a Sunshine license when I get a chance. Thanks again!
You are quite welcome.
Here is a thread with more info on changing from AT&T to T-Mob software: http://forum.xda-developers.com/att-htc-one-m8/help/installing-tmobile-rom-att-branded-phone-t3069388#post60606278
Good luck!
I have s5 G900T and would like to unlock it. I cannot get unlock code from carrier since I am not in US
Need information on ROM which I can flash so that it is converted to international version?
Is G900F unlocked international version? G900FXXU1BOD3
Thanks in advance for help
alkeshmehta said:
I have s5 G900T and would like to unlock it. I cannot get unlock code from carrier since I am not in US
Need information on ROM which I can flash so that it is converted to international version?
Is G900F unlocked international version? G900FXXU1BOD3
Thanks in advance for help
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Click to collapse
There is none. You have to Sim unlock it from stock Ron and purchasing a Sim unlock code from a 3rd party company or from tmo themselves after full purchase and required term.
Carlos2200 said:
There is none. You have to Sim unlock it from stock Ron and purchasing a Sim unlock code from a 3rd party company or from tmo themselves after full purchase and required term.
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Click to collapse
Ok thanks.
Can I put any custom ROM on G900T? The reason I am looking for custom ROM to put is that, I want VoLTE to work on different operator.
As G900T wont allow VoLTE to work with different SIM so require information on ROM which I can flash so that VoLTE can work
That I don't know unless the carrier supports it. Sorry, you just have to research that part on your own. The only thing I know is HD voice is tmo only.
Trying to decide whether to get G965FD or G9650 to use with T-mobile US. G9650 will have unlockable bootloader for rooting the device, correct? I realize the device is too new and there is no root for Chinese/HK variant yet but it will be there soon if it has unlocked bootloader.
Will flashing T-mobile US CSC give the VoLTE+WiFi calling features while preserving the unlocked bootloader and root?
The only reason I ask is because Exynos S7/S8+ modem download speeds suck on T-mobile US(10Mbps vs 60Mbps on Qualcomm in same location at same time when I tested). And then G9650 may support band71 as G965FD does not for 600MHz LTE on Tmobile.
Bump...
damn, does S9+ SM-G9650 have or not unlocked bootloader ?
would awesome to have 256gb vs low 128gb on S9+ SM-G965F
It has an unlocked bootloader from what others have posted so far. In fact there is first version of TWRP being tested on it looks like. Not sure if we can flash US CSC on it though. Also the modem on it probably is missing band 71 like international Exynos. There won't be many ROMs out for it but at least you can get root, dual SIM and Snapdragon advantage(as mentioned in reviews) I guess....
I think I'm only going to root if there is a way to go back to stock if I want.
I had an LG V20 on Sprint and I rooted it. Which is fine. All worked well and I was able to uninstall LG related crap I did not want. But with that I could not receive Android updates. I wasn't running a custom ROM, I just wanted root to remove LG installed crap.
Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
gustavrsh said:
Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
Click to expand...
Click to collapse
no
gustavrsh said:
Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
Click to expand...
Click to collapse
not possible. also, is there not a CSC for your area you can flash instead?
I don't know why these guys say it's not possible, maybe it isn't with your model. I also don't want to give you any bad ideas or anything, so use your own discretion & research.
My phone was unusable when I did this, so I had nothing to lose when I did this (It worked though).
I easily flashed my canadian note 8 with a us firmware using modified odin (must be same version bootloader).
It has warranty status 0x0 (aka, Knox is NOT tripped).
AGAIN, I'm not advising you try this with your model, unless you know what you're doing. I just want to make the information available to you.
Edit: I'm just waiting for someone to upload snapdragon beta 3 one ui 2.0. I'm going to try the same method to convert my Canadian s9+ to USA version.
Edit 2: I can confirm this method works on my Canadian s9+ aswell.
Amb669 said:
I don't know why these guys say it's not possible, maybe it isn't with your model. I also don't want to give you any bad ideas or anything, so use your own discretion & research.
My phone was unusable when I did this, so I had nothing to lose when I did this (It worked though).
I easily flashed my canadian note 8 with a us firmware using modified odin (must be same version bootloader).
It has warranty status 0x0 (aka, Knox is NOT tripped).
AGAIN, I'm not advising you try this with your model, unless you know what you're doing. I just want to make the information available to you.
Edit: I'm just waiting for someone to upload snapdragon beta 3 one ui 2.0. I'm going to try the same method to convert my Canadian s9+ to USA version.
Edit 2: I can confirm this method works on my Canadian s9+ aswell.
Click to expand...
Click to collapse
Yeah I don't think it'll work on mine, since it's a single sim phone, and the ROM I wanted was for a dual sim version. Unless of course the hardware is the same and the second SIM slot is present. I could try, but I don't want to risk it. Maybe later when Sammy stops updating the phone.
Youdoofus said:
not possible. also, is there not a CSC for your area you can flash instead?
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Unfortunately not. The SM-G965U1 is the US unlocked version. There are only CSCs for American carriers.
gustavrsh said:
Yeah I don't think it'll work on mine, since it's a single sim phone, and the ROM I wanted was for a dual sim version. Unless of course the hardware is the same and the second SIM slot is present. I could try, but I don't want to risk it. Maybe later when Sammy stops updating the phone.
Unfortunately not. The SM-G965U1 is the US unlocked version. There are only CSCs for American carriers.
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if its truly unlocked, then you should already have the U1 firmware on it. Get modded Odin and the U1 firmware, flash it in Odin and go from there. I never looked back after ditching the carrier junk on my phone
Sometime ago I did somethinh like that on my Arabian S7 Edge that I bough in Paraguai, it was Dual Sim model and i flashed ZTO CSC via Odin, and the phone was working well, but i'm not sure if the reverse works, and even the models were similar (F vs FD version) in your case u have 965U vs 9650, I would not take that risk, i thing that a korean or chinese model is 9650 too
look at this picture, US version has more bands so the modem could be different, you can try but you're risking your phone
davenasc said:
look at this picture, US version has more bands so the modem could be different, you can try but you're risking your phone
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yep, they are different phones that just so happen to use the same processor. Different bootloader, same chassis for whatever reason. Anyways, there have been threads talking about converting the 9650 to a 965u, but ive never seen anyone confirming that it indeed works. Big risk, but as long as one can get back to Odin mode, one should be good.