Questions about buying Tmobile variant - G2 Q&A, Help & Troubleshooting

I'm going to purchase the lg g2 tmobile variant for $398.40 just have a couple of questions. What would be the cheapest place for me to unlock the phone to work on ATT either online or in the Nyc area, Also when it comes to rooting and rom development are all the phones the same or would I be held back by not having the unlocked international version?

Manbot27 said:
I'm going to purchase the lg g2 tmobile variant for $398.40 just have a couple of questions. What would be the cheapest place for me to unlock the phone to work on ATT either online or in the Nyc area, Also when it comes to rooting and rom development are all the phones the same or would I be held back by not having the unlocked international version?
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SIM unlock $1.70: http://forum.xda-developers.com/showthread.php?t=2455956
The current root tool (ioroot25) doesn't work for the T-Moblie G2 and the only way to root is to flash back to JB, root, install recovery, then user recovery to upgrade to KK.
It seems there is less activity on the T-Mobile specific forum http://forum.xda-developers.com/tmobile-g2

Related

[Q] international galaxy firmware on T-mobile

so, I've surfed the forum looking for answers, I did find many conflicting answers but no firm ones. I am considering the TMO variant so I'll have 4G connectivity in the US and 3G where I travel frequently to in Europe. Assuming the TMO note 3 is SIM AND bootloader unlocked, can I flash international firmware on it while keeping TMO's modem settings ? I will only consider the TMO variant if this can be done, otherwise I think i'll sacrifice the 4G connection and get an international variant as usual.
sharl1987 said:
so, I've surfed the forum looking for answers, I did find many conflicting answers but no firm ones. I am considering the TMO variant so I'll have 4G connectivity in the US and 3G where I travel frequently to in Europe. Assuming the TMO note 3 is SIM AND bootloader unlocked, can I flash international firmware on it while keeping TMO's modem settings ? I will only consider the TMO variant if this can be done, otherwise I think i'll sacrifice the 4G connection and get an international variant as usual.
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another option would be to get the TMO note 3 from negri... it is sim unlocked ( i think)
neederishelp said:
another option would be to get the TMO note 3 from negri... it is sim unlocked ( i think)
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If you are paying the full price for the phone, it wouldn't matter where you get it from, it WILL be sim unlocked. my question is, knowing that the phone is SIM unlocked, and assuming it will be bootloader unlocked, can I flash any international firmware on it ?
sharl1987 said:
If you are paying the full price for the phone, it wouldn't matter where you get it from, it WILL be sim unlocked. my question is, knowing that the phone is SIM unlocked, and assuming it will be bootloader unlocked, can I flash any international firmware on it ?
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I don't see why not since Tmobile/ATT version is identical to the Euro S800 version, as long as you keep the Tmobile modem. My at&t S4 is identical to the euro version and I can flash any euro ROM. Just hope it will be bootloader unlocked .
sharl1987 said:
If you are paying the full price for the phone, it wouldn't matter where you get it from, it WILL be sim unlocked. my question is, knowing that the phone is SIM unlocked, and assuming it will be bootloader unlocked, can I flash any international firmware on it ?
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umm negative. Apparently our carriers suck like that. For example, t-mobile which is generally more lax than ATT will not unlock your phone until you've been with them for 40 days (or is it 4 months?) but yeah. No immediate unlock even if you purchase outright. I think you'll have to purchase it from someone else that explicitly states it is sim unlocked. Negrielectronics was a good example.

Porting stock L-01F (Japanese G2) ROM to d800 (AT&T G2)

I would like to know if it's possible to port the stock ROM of Japanese variant of the LG G2 (L-01F) to an AT&T LG G2?
I travel a LOT to Tokyo and using my phone on AT&T will just cost me an arm and 50 legs when I'm half across the world.
I'm thinking if I just flash the stock ROM of the Docomo version that it'll work, swap out my AT&T SIM card for a Docomo SIM card - flash the ROM and be good on the go. And when I go back to the states I'll just restore the nandroid of my AT&T stock ROM and slip in my AT&T card.
What exactly does it take to port the ROM over? I'm hearing that just flashing the ROM and flashing the AT&T kernel would work just fine.
Thanks for the help!
Bump, I really hope I've posted this in the right section.
I'm not a developer or anything, but wouldn't you need to unlock your phone for this?
FiendFyre said:
I'm not a developer or anything, but wouldn't you need to unlock your phone for this?
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Yes my phone is unlocked but some off the apps that are exclusive to Docomo handsets are locked and some are tied to their ROM framework and such. I tried downloading certain apps to see if I can get them to work on the AT&T ROM but it's a no go :\

Galaxy S 5 Active, which build no can I buy to root and upgrade the easiest?

This is really confusing. Most of the threads are written such that 'how to root while updating to OF2/OF3'...it doesn't tell me which versions allow rooting in the first place? Any help. Coming from the GS3
As far as I know, the S5 Active is only available as an AT&T phone, which means it will have a locked bootloader and any somewhat newer firmwares will be unrootable. Pre-lollipop builds (Anything below OF2) are rootable but still have a locked bootloader.
Just a word from the wise, don't get an S5 Active, and DEFINITELY don't get an AT&T phone. a GS5 (regular) with a thin case (Spigen slim armor or neo-hybrid/ otterbox commuter) will be WAY more durable anyway, plus it's still waterproof/dustproof.
Get yourself a G900T (T-Mobile variant), or a G900AZ (Cricket wireless variant --Cricket is a subsidiary of at&t--), or even a G900F. Those all have unlocked bootloaders and will allow you to root, install custom recovery, custom roms, whatever you want forever. I personally have a G900T using it on AT&T with no issues, as the G900T supports all the same frequencies (and an extra one!) as the G900A (AT&T model). The G900F doesn't support every single band AT&T uses, so I would pick one of the other two if you want 100% compatibility.
MAKE SURE if you buy a G900T or G900AZ that it is UNLOCKED or you won't be able to use it. And after you get it, you'll have to call AT&T support and give them the new phone's IMEI number in order for LTE to work.
Hope what I said makes sense..
FYI The best place to buy a phone is always (XDA's own..) Swappa!
https://swappa.com/
Sean89us said:
As far as I know, the S5 Active is only available as an AT&T phone, which means it will have a locked bootloader and any somewhat newer firmwares will be unrootable. Pre-lollipop builds (Anything below OF2) are rootable but still have a locked bootloader.
Just a word from the wise, don't get an S5 Active, and DEFINITELY don't get an AT&T phone. a GS5 (regular) with a thin case (Spigen slim armor or neo-hybrid/ otterbox commuter) will be WAY more durable anyway, plus it's still waterproof/dustproof.
Get yourself a G900T (T-Mobile variant), or a G900AZ (Cricket wireless variant --Cricket is a subsidiary of at&t--), or even a G900F. Those all have unlocked bootloaders and will allow you to root, install custom recovery, custom roms, whatever you want forever. I personally have a G900T using it on AT&T with no issues, as the G900T supports all the same frequencies (and an extra one!) as the G900A (AT&T model). The G900F doesn't support every single band AT&T uses, so I would pick one of the other two if you want 100% compatibility.
MAKE SURE if you buy a G900T or G900AZ that it is UNLOCKED or you won't be able to use it. And after you get it, you'll have to call AT&T support and give them the new phone's IMEI number in order for LTE to work.
Hope what I said makes sense..
I habve an at&t variant OC5 phone available on Swappa should I get that or not, because I can't find a rooting guide for OC5
Or are you saying buy unlocked so you can use it on AT&T?
Problem is I can't find the SM-G900AZ anywhere used....might just go with the Zenfone 2 . DISSAPOINTING SAMSUNG and ATT I loved the GS3 and was looking forwar to the GS5
Which frequencies does the T mobile version NOT share?
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zetsui said:
I habve an at&t variant OC5 phone available on Swappa should I get that or not, because I can't find a rooting guide for OC5
Or are you saying buy unlocked so you can use it on AT&T?
Problem is I can't find the SM-G900AZ anywhere used....might just go with the Zenfone 2 . DISSAPOINTING SAMSUNG and ATT I loved the GS3 and was looking forwar to the GS5
Which frequencies does the T mobile version NOT share?
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The T-Mobile version shares all the same frequencies plus includes an additional frequency which AT&T does not use, so therefore the T-Mobile (G900T) retains 100% compatibility with AT&T. Yes, if you want to use a G900T on any carrier besides T-Mobile it will have to be unlocked. Luckily it's not hard to find an unlocked G900T.
Let me make this clear: If it's AT&T and it's a Samsung phone and it's on lollipop, don't expect to be able to root it. Go with a T-Mobile or factory unlocked phone.

custom rom g935u?

Hi having been travelling around the world I purchased a second hand verizon in USA unlocked it says it's a g935u I've put my 3uk sim in it works fine. Is there Anyway of rooting it or adding a custom rom for better battery life? There's no verizon carrier software on it.
I'm not sure how to root it I'm sure you can the u stands for unlocked version so rooting should be fairly easy. I have att variant and have to jump through extra hoops to get root.
https://forum.xda-developers.com/verizon-s7-edge/development/rom-t3603231
Here you go dude just follow the directions and you will be fine

Unbranding h910 AT&T

Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
First off, if its not sim unlocked phone, it will forever stay sim locked unless you get the network unlock for it. EVEN if you flash any of the other brand roms. Also, AT&T doesn't have the full stock kdz to revert to, there are work arounds to return to stock. This phone has trouble with the screen ghosting/retention, as well as bonkers HDR camera performance, also not to forget, GPS inaccuracy upto 50 meters. I'd suggest look away from LG unless you're going for LG v30 which doesn't carry any of these issues.
If you have already bought, paid and "expecting" shipment anytime soon, you should make sure that its network unlocked H910. (make backup of your partitions before flashing any other brand rom because you will need modem, modemst1, modemst2 and misc partitions in-case you lose the signals). Then you can easily flash it with H915 rom which is the best among debloated stock roms. Flash H910 v10m firmware over it, then flash the modem/modemst1/modemst2/misc files from fastboot to get network signal. From there on forward, you may keep H915 rom with H910 v10m base, or you can even move on to lineage roms. I'd suggest stay rooted with manual color calibration for no-ghosting measures.
AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
You can't flash another variant rom until you unlock the bootloader and root. As far as functionality with the 996 will depend on the bands your carrier supports
Sent from my LG-H910 using XDA Labs
I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.
So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian
CaseyS said:
I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.
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Did you get any system updates?
runningnak3d said:
So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian
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The phone should come pre-unlocked for all networks. I'm mainly concerned about system updates. US996 sounds good, as I can't use AT&T here (AT&T doesn't exist in my country). Would I be able to update the firmware in any way once US996 KDZ is installed? Thanks in advance.
AWT86 said:
Did you get any system updates?
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No system updates. Had the latest update with the latest security patch, but I downgraded because I want to root it. Still 7.0, but with a earlier patch level.

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