Flashing Non TMobile images - T-Mobile LG G6 Questions & Answers

My apologies if this has been asked. Can I flash non TMobile images? The phone is unlocked and I was curious if this was an option.

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[Q] Flashing kitkat on Unlocked N900A(T-mobile)

How can i get Kitkat? since the phone is unlocked it wont automatically update. I tried using an att simcard to update, but the installation was aborted i guess. i do have safestrap, maybe thats why it didnt work. ohh and i am rooted.
Use the NC2 Odin files found in the general section.
Face_Plant said:
Use the NC2 Odin files found in the general section.
Click to expand...
Click to collapse
I think he shouldn't do that. He has an unlocked Tmobile phone. His boot loader should also be unlocked, or is able to do it very easily. If I were OP, I'd go check in T-Mobile Note3 forum. There's absolutely no reason to get anything from AT&T forum unless he want's AT&T junk such as AT&T Contacts.
hp79 said:
I think he shouldn't do that. He has an unlocked Tmobile phone. His boot loader should also be unlocked, or is able to do it very easily. If I were OP, I'd go check in T-Mobile Note3 forum. There's absolutely no reason to get anything from AT&T forum unless he want's AT&T junk such as AT&T Contacts.
Click to expand...
Click to collapse
well it is actually an att phone. Im just using it on Tmobile. Sorry for the confusion.

[Q] Questions about Moto X versions

First post! - joined at first to read posts but now have one of my own mixed with a number of questions.
I recently picked up a used Moto X from Craiglist and the guy claimed it is an unlocked T-Mobile version with an already unlocked bootloader. The whole point of this purchase was so I could experiment and learn more about what goes on with phones.
How can I verify that the guy is really telling me the truth about the version? I used imei.info and it told me it was an XT1055. However, swappa.com told me it was XT1053. I saw on some post here that XT1053 matches the T-Mobile/Dev version which would make sense with what the Craigslist guy told me. Both sites claim it is not 100% accurate so how else can I verify actual version? There is no logo of T-Mobile on the back of this device. Is there some serial number lookup database?
This led me to wonder if it's possible to flash different software variants onto this phone? In theory, could I download the images for an ATT variant and flash them onto my supposed T-Mobile version? Apart from the potential of overwriting the unlocked bootloader and preventing me from downgrading versions (from the other posts that I've read here), would the phone work assuming my SIM/network is ATT? The IMEI would remain the same, right? How much of the underlying hardware configuration is tied to version of the software that I flash onto the phone?
Could the guy have purchased this phone to whatever carrier XT1055 matches to - rooted or unlocked the bootloader, and flashed the XT1053 images?
At this point, using mfastboot I was able to verify that the bootloader was unlocked but went ahead and performed the same process on Moto's site anyway (and this seemed to work - did this for experimenting). I then downloaded TMO_RETAIL_XT1053_4.4.3-KXA21.12-L1.21_MR4_CFC to reflash onto the phone. This whole process might have seemed redundant but I just wanted to ensure the used phone that I had purchased matched a stock set of images (minus the unlocked bootloader).
Thanks! Apologies in advance if there was another similar post - I tried searching but maybe not hard enough.
klxavier said:
First post! - joined at first to read posts but now have one of my own mixed with a number of questions.
I recently picked up a used Moto X from Craiglist and the guy claimed it is an unlocked T-Mobile version with an already unlocked bootloader. The whole point of this purchase was so I could experiment and learn more about what goes on with phones.
How can I verify that the guy is really telling me the truth about the version? I used imei.info and it told me it was an XT1055. However, swappa.com told me it was XT1053. I saw on some post here that XT1053 matches the T-Mobile/Dev version which would make sense with what the Craigslist guy told me. Both sites claim it is not 100% accurate so how else can I verify actual version? There is no logo of T-Mobile on the back of this device. Is there some serial number lookup database?
This led me to wonder if it's possible to flash different software variants onto this phone? In theory, could I download the images for an ATT variant and flash them onto my supposed T-Mobile version? Apart from the potential of overwriting the unlocked bootloader and preventing me from downgrading versions (from the other posts that I've read here), would the phone work assuming my SIM/network is ATT? The IMEI would remain the same, right? How much of the underlying hardware configuration is tied to version of the software that I flash onto the phone?
Could the guy have purchased this phone to whatever carrier XT1055 matches to - rooted or unlocked the bootloader, and flashed the XT1053 images?
At this point, using mfastboot I was able to verify that the bootloader was unlocked but went ahead and performed the same process on Moto's site anyway (and this seemed to work - did this for experimenting). I then downloaded TMO_RETAIL_XT1053_4.4.3-KXA21.12-L1.21_MR4_CFC to reflash onto the phone. This whole process might have seemed redundant but I just wanted to ensure the used phone that I had purchased matched a stock set of images (minus the unlocked bootloader).
Thanks! Apologies in advance if there was another similar post - I tried searching but maybe not hard enough.
Click to expand...
Click to collapse
If you are using a SIM in it, it is NOT an XT1055 - those are sim-locked.
You probably have a real XT1053.
There is absolutely NO REASON to ever flash another carrier's firmware. It's dangerous and you gain nothing. Stick with your proper firmware - you can already use it on any carrier you wish.
P.S. Look on the bottom of the back of the phone. In TINY print should be the model number...
Thanks! I did not notice that tiny print - it seems to fade out with the glare in normal lighting conditions.
samwathegreat said:
If you are using a SIM in it, it is NOT an XT1055 - those are sim-locked.
You probably have a real XT1053.
There is absolutely NO REASON to ever flash another carrier's firmware. It's dangerous and you gain nothing. Stick with your proper firmware - you can already use it on any carrier you wish.
P.S. Look on the bottom of the back of the phone. In TINY print should be the model number...
Click to expand...
Click to collapse
klxavier said:
Thanks! I did not notice that tiny print - it seems to fade out with the glare in normal lighting conditions.
Click to expand...
Click to collapse
Same, I did not notice it on a white back. Also if it says Developer Edition on the back then it is most likely a 1053 also.

[Q] Moto X AT&T stock version, does it come with a lock?

Hi guys,
total n00b question.
A friend of mine brought an AT&T Moto X (1st generation) phone with him for me from the U.S. to Germany.
He bought it from the motorola.com page directly 2 years ago through the Thanksgiving promo, never got it activated and its still stock and everything, never used before.
He paid the full retail price of 400$ at the time, does it however still come with a sim/netlock?
I thought since it didn't come with a contract (where you pay only a few $ and you are bound to a 1y/2y contract) and he paid the full 400$ for it, it doesn't have any sim/net lock?
Sadly I don't have a nano sim card to try it out, before I order one from my carrier I was hoping someone could help me out with this
I know that simlock threads are not allowed, I'm not asking for an unlock, just whether a retail 400$ phone has that lock or not?
Thanks in advance!
If it's stock and on 4.4.2 or below, invest in Sunshine to unlock your bootloader. I'm not sure if AT&T sim-locked their Moto Xs. They should provide the code for free, if necessary, though since the phone was paid in full.
Thanks for the quick reply, already looked into SuneShine for unlocking the BL (its a shame that I didn't pick the T-Mobile version over the AT&T, hmm)
But worth spending another 25$ for it!
Now I'm still curious about the sim/netlock.
From what I found out by googling and reading for hours, if it has a simlock, AT&T will not unlock it cause I've never been a customer and it never was hooked up to an AT&T account, kinda bad if you ask me for a full price cell phone... The T-Mobile version comes 100% sim and BL unlocked...
Moto chat support cant help, they didn't even know that there are different versions of the Moto X 1st Gen...
It's usually less than 20 dollars to unlock them on a website that offers Sim unlocking. Not sure if at&t devices are usually OK to do so, but I would think they are. The carriers usually charge more even... In Canada anyway. ?
OK, thanks a lot!
I'm really just surprised that if you pay the full retail price for a phone it can still be sim/netlocked...
Hope you guys don't mind asking me another few questions, I'm just transiting over from my Razr I so a few things are different
If I don't need a custom recovery but planning on installing a different official Moto firmware which is signed by Moto (would love to flash the EU firmware to have full German language support) do I still need to unlock the BL or will this work with a locked BL since its an official Moto firmware?
Also are there any files I should not flash, therefore remove from the xml?
And I know that the BL unlock has nothing to do with the sim unlock, but any change if I unlock the BL and flash a different firmware, I won't need to enter a sim unlock code then?
I'm just trying to get as many answers before I try it and find out the "hard" way it won't work and that it results in a completely bricked device in the end...
AND sorry, but another question
Are the LTE bands hardware or software coded? Cause we use different bands over here in Europe and I know from the Sony Z1C you can activate all bands software-wise, so I was thinking maybe its the same with the Moto X?
Thanks again!
Hello, I was wondering if I also could install a pure Android on my at&t Moto X 2014?
Sent from my XT1097 using XDA Free mobile app
mmaslo1124 said:
Hello, I was wondering if I also could install a pure Android on my at&t Moto X 2014?
Sent from my XT1097 using XDA Free mobile app
Click to expand...
Click to collapse
Wrong section, This is the 2013 section. And this thread has nothing to do with your question, that's called thread hijacking.
So you should go to the Moto X 2014 section, and if you don't see a thread on the same sort of topic.... Then post your own thread in the Q&A section. ?
So I read an insane number of pages and somewhere I found this great page:
https://www.att.com/deviceunlock/?#/
Long story short, I reveived a nano sim card today, AT&T Moto X is locked, contacted AT&T via the above mentioned website, it took 2 days and today I received my sim unlock code via email from AT&T for free, no account with them needed and it works!
dagoban said:
If I don't need a custom recovery but planning on installing a different official Moto firmware which is signed by Moto (would love to flash the EU firmware to have full German language support) do I still need to unlock the BL or will this work with a locked BL since its an official Moto firmware?
Also are there any files I should not flash, therefore remove from the xml?
Click to expand...
Click to collapse
With the bootloader on the ATT XT1058 being locked, you'll only be able to flash Moto Signed Roms for your phone's CID or carrier branding. You will not be able to flash the XT1052 EU rom, or other X roms. Only the ATT XT1058.
If you are lucky and your ATT XT1058 has not yet been upgraded to Android 4.4.4 and bootoader 30.B7, you should be able to use JCase's Sunshine tool to unlock the bootloader. Note: Because this is a HACK, do NOT try to re-lock the bootloader after using it, or you will be permanently bootloader locked.
dagoban said:
And I know that the BL unlock has nothing to do with the sim unlock, but any change if I unlock the BL and flash a different firmware, I won't need to enter a sim unlock code then?
Click to expand...
Click to collapse
I don't believe flashing a different ROM would give you SIM unlock.
You're only option is getting it from the Carrier if you meet their terms/conditions. Or buying a SIM unlock code from an online seller.
dagoban said:
AND sorry, but another question
Are the LTE bands hardware or software coded? Cause we use different bands over here in Europe and I know from the Sony Z1C you can activate all bands software-wise, so I was thinking maybe its the same with the Moto X?
Thanks again!
Click to expand...
Click to collapse
I've read different things. So I can't say for sure which is correct.
I know that the Verizon X, XT1060, initially game supporting only LTE Band 13. Band 4 was later enabled by firmware update.
But I've also seen posts of some losing their entire cellular radio when flashing other model's full roms, and not getting it back by flashing the correct rom. (I don't recall the full details, sorry!).
On other phones, I've seen things like "edits" to turn on other bands. But no so for the 2013 X.
So I wouldn't mess with it.
Thanks for the explanations @KidJoe
Until know I didn't know that a signed Moto firmware is not just bound to the model but also to a CID, always thought you could flash any region firmware over the phone as long as its the same model.
Sunshine is def. an option, I didn't take the OTA (even thou it reminds me at least once a day cause I suspected already there would be more exploits available with a lower android OS.
SIM unlock is no problem anymore, AT&T provided me the unlock key via website request (took me a while to find that link, thou) and you don't need to have an account with them and the phone does NOT need to be hooked to an AT&T contract.
About the LTE bands:
OK, I don't want to mess with the modem / radio and lose all bands in the end but could I just flash the system files from the EU version via fastboot?
Which files should I flash and which files should I avoid flashing?
Basicially what I'm trying to achieve is getting German as android language and not just have German as keyboard language.
Or is German included in the CM11 as well cause then I imagine it would be much easier to just flash CM11 without damaging any bands...
All in all, I'm just looking for a fully stable KK OS that is in German
Thanks again for your replies!
dagoban said:
About the LTE bands:
OK, I don't want to mess with the modem / radio and lose all bands in the end but could I just flash the system files from the EU version via fastboot?
Which files should I flash and which files should I avoid flashing?
Click to expand...
Click to collapse
You could try using mFastboot and flash only System.img... BUT!!!! Its going to cause issues with OTA updates, and having mismatched parts always increases the risks for bricking and/or things just not working correctly!! So I usually don't recommend mixing things up.
dagoban said:
Basicially what I'm trying to achieve is getting German as android language and not just have German as keyboard language.
Or is German included in the CM11 as well cause then I imagine it would be much easier to just flash CM11 without damaging any bands...
All in all, I'm just looking for a fully stable KK OS that is in German
Thanks again for your replies!
Click to expand...
Click to collapse
I've not messed with adding additional languages. Nor have I used CM as I like my Moto features too much, and stock (rooted) runs just fine here.

[Q] What is the best unlocking service for the T-Mobile S6

Hi, I have a T-mobile GS6 and want to unlock it I know I need to flash METRO PCS firmware unlock it then flash back to stock but what unlocker is $20 or less and works with the S6 tmobile that is on METRO PCS firmware also while I am doing this and it asks me what carrier I am currently using do I select METRO PCS or T-MOBILE?
Thanks
ethanscooter said:
Hi, I have a T-mobile GS6 and want to unlock it I know I need to flash METRO PCS firmware unlock it then flash back to stock but what unlocker is $20 or less and works with the S6 tmobile that is on METRO PCS firmware also while I am doing this and it asks me what carrier I am currently using do I select METRO PCS or T-MOBILE?
Click to expand...
Click to collapse
Once you unlock with the MetroPCS firmware, do not ever flash back to T-Mobile firmware, or you'll end up relocking it! You can flash any compatible ROM, just not the T-Mobile radio firmware. ROM'S never include the radio firmware, so you should be fine.
guyd said:
Once you unlock with the MetroPCS firmware, do not ever flash back to T-Mobile firmware, or you'll end up relocking it! You can flash any compatible ROM, just not the T-Mobile radio firmware. ROM'S never include the radio firmware, so you should be fine.
Click to expand...
Click to collapse
Ok and really quick, lets say I used the unlock app to get a temp unlock and froze it to kind of make it perm could I flash another ROM and still be unlocked?
ethanscooter said:
Ok and really quick, lets say I used the unlock app to get a temp unlock and froze it to kind of make it perm could I flash another ROM and still be unlocked?
Click to expand...
Click to collapse
No, it's not that easy! You need a real unlock to make it permanent.
You just need to decide which route to take to unlock it.
I did the MetroPCS firmware and then traditional sim unlock, and then custom rom.
guyd said:
No, it's not that easy! You need a real unlock to make it permanent.
You just need to decide which route to take to unlock it.
I did the MetroPCS firmware and then traditional sim unlock, and then custom rom.
Click to expand...
Click to collapse
But what if I went back to tmobile stock and then I would lose the unlock BUT after going to the tmobile rom which would make me lose my unlock could I go back to a metroPCS ROM and unlock with the same code?
ethanscooter said:
But what if I went back to tmobile stock and then I would lose the unlock BUT after going to the tmobile rom which would make me lose my unlock could I go back to a metroPCS ROM and unlock with the same code?
Click to expand...
Click to collapse
No, It's the low level firmware that's the key to the unlock.
MetroPCS firmware = traditional code unlock
T-Mobile firmware = proprietary device unlock
After you're unlocked, you can change the ROM all you want. It's the low level firmware that you must be careful with (mainly the radio).
guyd said:
No, it's not that easy! You need a real unlock to make it permanent.
You just need to decide which route to take to unlock it.
I did the MetroPCS firmware and then traditional sim unlock, and then custom rom.
Click to expand...
Click to collapse
Do you mind pointing me to the guide you used to root and install recovery on your S6.
I just unlocked mines using the metro firmware and I don't want to accidentally install the T-Mobile firmware
Thanks
GeeRoooock said:
Do you mind pointing me to the guide you used to root and install recovery on your S6.
I just unlocked mines using the metro firmware and I don't want to accidentally install the T-Mobile firmware
Thanks
Click to expand...
Click to collapse
Don't download and Odin flash the T-Mobile firmware or radio, and you'll have nothing to worry about!
Rooting is simple on an unlocked bootloader if you don't mind tripping knox.
1. Odin flash TWRP.
2. Boot straight into TWRP after Odin flashing (vol-up + home + power)
3. Flash SuperSU from TWRP
Done, profit!
guyd said:
Don't download and Odin flash the T-Mobile firmware or radio, and you'll have nothing to worry about!
Rooting is simple on an unlocked bootloader if you don't mind tripping knox.
1. Odin flash TWRP.
2. Boot straight into TWRP after Odin flashing (vol-up + home + power)
3. Flash SuperSU from TWRP
Done, profit!
Click to expand...
Click to collapse
Hey! I do have the same question as the person that created this thread. When I flash the MetroPCS firmware should I select MetroPCS or T-Mobile on a 3rd party unlocking company to buy the unlocking code? Thank you all!
marcio_moura said:
Hey! I do have the same question as the person that created this thread. When I flash the MetroPCS firmware should I select MetroPCS or T-Mobile on a 3rd party unlocking company to buy the unlocking code? Thank you all!
Click to expand...
Click to collapse
MetroPCS, that's what I did and it worked fine if you flash the MetroPCS firmware.
I need to get my S6 to show the Tmobile Logo on bootup so I can Jump to the S7. I had flashed it to MetroPCs for the unlock. I thought if I went the Odin route and installed the Tmobile software it would change the bootup Logo but so far after running Odin it still boots up with MetroPCs.
guyd said:
No, it's not that easy! You need a real unlock to make it permanent.
You just need to decide which route to take to unlock it.
I did the MetroPCS firmware and then traditional sim unlock, and then custom rom.
Click to expand...
Click to collapse
Which MetroPCS firmware did you use and where did you get it from?
I have a SM_G920T on TMobile 5.1.1 Baseband G920TUVS3DOJC and I tried flashing the G920T1UVU2COF9 MetroPCS firmware from sammobile and I get a FAIL message on Odin.
mudcat242000 said:
Which MetroPCS firmware did you use and where did you get it from?
I have a SM_G920T on TMobile 5.1.1 Baseband G920TUVS3DOJC and I tried flashing the G920T1UVU2COF9 MetroPCS firmware from sammobile and I get a FAIL message on Odin.
Click to expand...
Click to collapse
I Odin'd the MetroPCS firmware (G920T1) a long time ago, and it was newer than the TMo firmware the device had on it at the time. I think you're failing to flash because the MetroPCS firmware you used 2COF9 is older than the Tmobile firmware 3DOJC you already have on it. That's my guess.

G920T root/custom goodies on the G920T1

Hey guys,
So I just bought bought a G920T1 and I am aware that it is the same hardware as the G920T with a few software differences (missing download booster). Knowing this, is it safe for me to use the root methods/custom recoveries/custom firmwares of the G920T on my phone?
Thanks
Yes. And by custom firmwares I assume you mean custom roms
Sent from my SM-G920T using Tapatalk
Yup, they are exactly the same phone. So use Unikernel to root, TWRP for recovery, and firmware of choosing.
One thing tho is if you wanna use the unlocking method with Metro which use codes. Then don't flash any TMO modem and bootloader as you will lose the unlock. Just update them to lastest 5.1.1 from sammobile or OTA if you need to. Other then that you should be good to go.
serio22 said:
Yes. And by custom firmwares I assume you mean custom roms
Sent from my SM-G920T using Tapatalk
Click to expand...
Click to collapse
Yeah, it's been awhile since i've been back on xda
stylin350 said:
Yup, they are exactly the same phone. So use Unikernel to root, TWRP for recovery, and firmware of choosing.
One thing tho is if you wanna use the unlocking method with Metro which use codes. Then don't flash any TMO modem and bootloader as you will lose the unlock. Just update them to lastest 5.1.1 from sammobile or OTA if you need to. Other then that you should be good to go.
Click to expand...
Click to collapse
I bought the phone off swappa and it was listed under the T-mobile S6 section, but I noticed that the model number in the pictures was G920T1. I'll probably ask the seller how he unlocked his phone. So flashing a custom ROM should be fine, right? Based on my previous experience flashing my older S3, flashing modems were usually a different .zip than the ROMs and I don't really remember all too much about bootloaders.
crazililazn said:
Yeah, it's been awhile since i've been back on xda
I bought the phone off swappa and it was listed under the T-mobile S6 section, but I noticed that the model number in the pictures was G920T1. I'll probably ask the seller how he unlocked his phone. So flashing a custom ROM should be fine, right? Based on my previous experience flashing my older S3, flashing modems were usually a different .zip than the ROMs and I don't really remember all too much about bootloaders.
Click to expand...
Click to collapse
Yeah flashing custom rom is fine as they don't include the modem nor bootloader. It's just that most newer roms require you to have the lastest bootloader and modem for best experience. Sorry didn't mean to confuse you more, but G920T and G20T1 are the same phone. Some people just swap firmwares between TMO and Metro as the G920T1 is easier to unlock. I have the same version G920T1 and bought code off of ebay to unlock easily.
stylin350 said:
Yeah flashing custom rom is fine as they don't include the modem nor bootloader. It's just that most newer roms require you to have the lastest bootloader and modem for best experience. Sorry didn't mean to confuse you more, but G920T and G20T1 are the same phone. Some people just swap firmwares between TMO and Metro as the G920T1 is easier to unlock. I have the same version G920T1 and bought code off of ebay to unlock easily.
Click to expand...
Click to collapse
Alright, then can I upgrade to the newest Metro bootloader to keep my unlock and then install the newer ROMs? Or would I lose my unlock that way.?
crazililazn said:
Alright, then can I upgrade to the newest Metro bootloader to keep my unlock and then install the newer ROMs? Or would I lose my unlock that way.?
Click to expand...
Click to collapse
Correct and you'll keep the unlock.
stylin350 said:
Yeah flashing custom rom is fine as they don't include the modem nor bootloader. It's just that most newer roms require you to have the lastest bootloader and modem for best experience. Sorry didn't mean to confuse you more, but G920T and G20T1 are the same phone. Some people just swap firmwares between TMO and Metro as the G920T1 is easier to unlock. I have the same version G920T1 and bought code off of ebay to unlock easily.
Click to expand...
Click to collapse
stylin350 said:
Correct and you'll keep the unlock.
Click to expand...
Click to collapse
Hello again, about to get my S6 soon and was wondering if you could point me to some root methods that would work without breaking fingerprint scanner or tripping KNOX. It's been awhile since I've been back in the rooting scene and was hoping you could point me in the right direction. Also, if I want to keep my unlock and upgrade to Tmo 5.1.1 stock, I would flash the Tmo ROM with a Metro bootloader?

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