LG Leon 4G LTE (h340n) bootloader - LG Leon Questions & Answers

Hello
I think i've found a way to get unlocked bootloader.
I saw this thread http://forum.xda-developers.com/leon/help/recovery-mode-lg-leon-h340n-t3279324 (look at post #4 by bkpaokfc)
He flashed it, but no signal because its MetroPCS version.
What if we flash MetroPCS or TMO version, unlock bootloader and then install normal kdz back?
Btw. i think TMO version would work for me because i have polish TMO simcard.
 @bkpaokfc - Maybe you will now something

Mudzajan said:
Hello
I think i've found a way to get unlocked bootloader.
I saw this thread http://forum.xda-developers.com/leon/help/recovery-mode-lg-leon-h340n-t3279324 (look at post #4 by bkpaokfc)
He flashed it, but no signal because its MetroPCS version.
What if we flash MetroPCS or TMO version, unlock bootloader and then install normal kdz back?
Btw. i think TMO version would work for me because i have polish TMO simcard.
@bkpaokfc - Maybe you will now something
Click to expand...
Click to collapse
Check it how it works, flash 5.1.1 kdz then install the rom if we get the 5.1.1 kdz we could have the rom for Europe phones.always remember 5.1.1 can be unlocked,without that we can't do nothing.

Related

at&t stock firmware on t-mobile s4

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can I flash a at&t stock firmware with odin to my T-Mobile m919 with out any problems...right now my s4 is sim unlocked and im on at&t network .and it seems like its working ok but signal a little on the low side and spotty lte service....would there be any advantage flashing at&t's stock firmware to use on att network .would it lock my bootloader..would my service and signal be any better.....if I wanted to would I be able to flash back to T-Mobile stock firmware...will it work....anyone try this ..anything I should know before I do this ...thanks in advance
[email protected] said:
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can I flash a at&t stock firmware with odin to my T-Mobile m919 with out any problems...right now my s4 is sim unlocked and im on at&t network .and it seems like its working ok but signal a little on the low side and spotty lte service....would there be any advantage flashing at&t's stock firmware to use on att network .would it lock my bootloader..would my service and signal be any better.....if I wanted to would I be able to flash back to T-Mobile stock firmware...will it work....anyone try this ..anything I should know before I do this ...thanks in advance
Click to expand...
Click to collapse
[?quote}Originally Posted by Misterjunky View Post
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.[/quote]
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
[email protected] said:
[?quote}Originally Posted by Misterjunky View Post
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.
Click to expand...
Click to collapse
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4[/QUOTE]
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency
[email protected] said:
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
Click to expand...
Click to collapse
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency[/QUOTE]
If you want stock att, just flash this through recovery http://forum.xda-developers.com/showthread.php?t=2307157
Sent from my HTC PH39100 using Tapatalk 2
re: ATT&Tmo
[email protected] said:
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
Click to expand...
Click to collapse
The hardware is NOT the same.
If the hardware was the same for both the AT&T S4 and Tmobile S4 phones then there would only
be one model for both carriers and both carriers would be using the same frequencies of operation.
It's not the software that determines the frequencies of operation, it's in the hardware.
Another thing is that the AT&T has a locked bootloader, the Tmobile bootloader is not locked.
(Whether the bootloader is locked or not it has nothing to do with rooting)
He is correct here...they are not similar. 2 different modems etc.
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Any help on this will be great!
Wondering if that will brick my phone. I am using Unlocked AT&T US model in India and wanted to flash it with Indian or European firmware,
Thanks in advance.
Vikram
Vikram26 said:
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Click to expand...
Click to collapse
No you can't
Thanks Doktor
doktor buknasty said:
No you can't
Click to expand...
Click to collapse
Thanks Doktor
---------- Post added at 02:24 PM ---------- Previous post was at 02:13 PM ----------
doktor buknasty said:
No you can't
Click to expand...
Click to collapse
Can I flash with anyother country firmware using other method please? I don't want to use AT&T Stock firmware.
Vikram26 said:
Thanks Doktor
---------- Post added at 02:24 PM ---------- Previous post was at 02:13 PM ----------
Can I flash with anyother country firmware using other method please? I don't want to use AT&T Stock firmware.
Click to expand...
Click to collapse
No you cant. You have stick with att firmware or else your phone will be a brick.
What would be a better phone to get to use on AT&T? An unlocked T-Mobile S4 or an AT&T branded S4?
AT&T ROMS on T-Mobile S4
I've been attempting to install the stock AT&T firmware on my T-Mobile M919. I understand after reading the thread that this is not possible which is why the Odin flash always fails. I am using an AIO (AT&T) sim card. I have been flashing ROMS built for the I337. Most boot loop after install. Those that install successfully cannot activate the WIFI function on the phone. Both Xperia and Darth Stalker work when installed for the AT&T variety of S4. Today I read the Goldeneye installation instructions which state if the AT&T baseband is not flashed on the phone, then WIFI will not work which is the problem I routinely experience. So my question is should I be flashing T-Mobile S4 roms even though I have an AT&T sim? or do I have another issue? The phone is rooted and sim unlocked. Thanks!
I own a i337M S4 is it possible to flash via odin the i337 att firmware? and have the modem and everything still working? So basically I want to take my Canadian S4 and make it usable in the US? I'm going to be moving in a few weeks.
Hi, I have the same question.
I am planning to install Telus rom v 4.2.2 on Fido S4 which is on Android 4.2.2 Baseband i337MVLUAMG1.
I have unlocked (SIM) the phone using unlock code and Rooted using CF auto root.
Have TWRP installed. Have made nandroid back up.
So here are the steps I am going to follow.
1) Download Official Telus Firmware (4.2.2 AMG) from sammobile.
2) Wipe to factory default using TWRP.
3) Flash Telus firmware 4.2.2 using Odin.
4) Root the phone.(CF-Auto Root)
Can someone please tell me if this is OK?
Are there any chances of bricking the device if you install telus rom on fido phone?
Just want to make it sure before I proceed.

[Q] Can I flash Tmo Stock Image on AT&T Model?

Just ordered my wife a G2, it is unlocked however it is the AT&T variant and we are on Tmo. I have read that someone took a Tmo rom and made it possible to flash this to the AT&T model along with the KK baseband so that we can use Tmos wifi calling. However I would like to know if I can simply just flash a Tmo stock image and flash the KK baseband if this will work or am I looking into this all wrong?
This is where I read about the Tmo on AT&T rom:
http://phoneprouser.com/lg-g2-rom-that-supports-wifi-calling-on-att/1007/
Can anyone tell me if the ROM mentioned in the link above is this the latest ROM for the G2? Thank you in advance.
Side Question, if I want to flash Cyanogenmod and still want to retain the wifi calling can I flash the Tmo rom along with the aforementioned KK baseband?
https://download.cyanogenmod.org/?device=d800
ozzmanj1 said:
Just ordered my wife a G2, it is unlocked however it is the AT&T variant and we are on Tmo. I have read that someone took a Tmo rom and made it possible to flash this to the AT&T model along with the KK baseband so that we can use Tmos wifi calling. However I would like to know if I can simply just flash a Tmo stock image and flash the KK baseband if this will work or am I looking into this all wrong?
This is where I read about the Tmo on AT&T rom:
http://phoneprouser.com/lg-g2-rom-that-supports-wifi-calling-on-att/1007/
Can anyone tell me if the ROM mentioned in the link above is this the latest ROM for the G2? Thank you in advance.
Side Question, if I want to flash Cyanogenmod and still want to retain the wifi calling can I flash the Tmo rom along with the aforementioned KK baseband?
https://download.cyanogenmod.org/?device=d800
Click to expand...
Click to collapse
THIS IS AN ABSOLUTE AND COMPLETE NO GO, FLASHING A FACTORY IMAGE FOR A DIFFERENT MODEL CAN HARD BRICK YOUR DEVICE, IN FACT I'D PRETTY MUCH GUARANTEE IT!!! GO INTO THE ATT DEVELOPMENT THREAD AND FIND SAID T MOBILE ROM FOR YOUR DEVICE, FLASH THAT IF YOU WANT TO. As an answer to the side question there is no way to retain wifi calling on cyanogenmod, especially on a non tmo device. Finally as for the baseband find out what baseband the respective ROMs need (the tmobile one for ATT G2s or the CM build you choose to use).

Want to Flash AT&T or Unlocked Firmware on T-Mobile Device - A Few Questions

So I've spent a few hours searching XDA to find the right resources on how to flash a different U.S. carrier's GS7 Edge firmware on the T-Mobile branded device. I found out that since all the internal hardware for all U.S. devices are identical, I'd be able to flash any one carrier's firmware on to any carrier's device, provided there are no inconsistencies with the bootloader versions of the firmwares.
The phone is intended for an extended family member and I am able to purchase a T-Mobile GS7 Edge for significantly cheaper than from any other carrier. Because it will be used on AT&T's network, I wanted to make sure I got everything right before I get started. I either want to flash the AT&T version which will allow it to be fully compatible on the network, or the Unlocked version. Apparently, the unlocked version is completely debloated since it's not associated with any carrier and provides better benchmarks, especially battery life, so I'm interested in that.
I've compiled the resources I need in the following:
https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
https://forum.xda-developers.com/att-s7-edge/help/att-t-mobile-bootloader-version-t3473281
https://forum.xda-developers.com/tmobile-s7-edge/help/installed-sm-g935u-sm-g935t-firmware-t3482945
https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
https://forum.xda-developers.com/att-s7-edge/how-to/firmware-pi2-s7-edge-sm-g935a-10-03-16-t3477246
https://forum.xda-developers.com/verizon-s7-edge/how-to/odin-stock-nougat-firmware-t3570156
https://forum.xda-developers.com/att-s7-edge/how-to/updated-935u-935a-live-links-pi3-t3501686
http://updato.com/firmware-archive-select-model?q=SM-G935U&order=date&dir=desc&exact=1
etc.
One question I have is whether I am able to flash the Unlocked firmware at all. I don't currently have the device in hand so I can't check the baseband version, but my understanding is that the Unlocked version is currently on a lower bootloader version whereas it is v4 for AT&T or T.Mobile. This would mean I would be able unable to flash the Unlocked firmware if the device already has a higher version of the bootloader, right? Conversely, I would be able to do so if the T-Mobile bootloader was on the same version as the Unlocked version (e.g., if the device hasn't had an update to its bootloader).. The same issue would arise if I wanted to go back to a carrier firmware. Where can I find a list of T-Mobile firmwares and their bootloader versions so that I can check? Threads I've searched are saying I can't go to 935U from 935A/T because of mismatching bootloaders but others are saying I can go back to 935A/T on Nougat (same bootloader versions?) so clarification would be greatly appreciated.
Edit: Just discovered the bootloader version can be determined by looking at the 9th character in the baseband version. Pretty simple!
Another question I have is whether flashing the AT&T firmware will give me VoLTE, Wifi Calling, tethering, etc. on AT&T's network. I've established that if I flashed the Unlocked firmware, I'll lose these functions (unless I root the phone, but that's a no-go since I need Samsung Pay intact). Just wanted to make sure that I would retain these features if I flashed the AT&T firmware on the T-Mobile device. Also, would I receive all OTAs pushed from AT&T while I'm on their firmware, even though it was a T-Mobile device? Or would I have to manually update it somehow?
Many thanks in advance.
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
justda said:
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
Click to expand...
Click to collapse
^^^^^this man is correct. Also, is the device you want to flash Carrier unlocked? Even though youre flashing a different carriers firmware or even the U firmware I believe the IMEI still needs to be unlocked from the original carrier. Obviously just pop the at&t sim card in the t mobile phone to see if its unlocked. hope this helps.
black96ss said:
^^^^^this man is correct. Also, is the device you want to flash Carrier unlocked? Even though youre flashing a different carriers firmware or even the U firmware I believe the IMEI still needs to be unlocked from the original carrier. Obviously just pop the at&t sim card in the t mobile phone to see if its unlocked. hope this helps.
Click to expand...
Click to collapse
Yes, it'll be unlocked, so there won't be problems there. If I flash the AT&T firmware and not the Unlocked firmware, I will retain video calling, yes?
justda said:
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
Click to expand...
Click to collapse
If I flash the current version of the Unlocked firmware, can I go back to AT&T's or T-Mobile's firmware?
Synchronicities said:
Yes, it'll be unlocked, so there won't be problems there. If I flash the AT&T firmware and not the Unlocked firmware, I will retain video calling, yes?
Click to expand...
Click to collapse
flashing the at&t firmware will just be like having an original at&t s7 edge so yes. The Unlocked firmware will be lighter with no video calling(no carrier apps, no carrier boot animation, some of the quick toggles will be different) you will retain VOLTE HD calling, wifi calling(if at&t has that) and with the at&t you will have all the bloat (about 2-3 GB of used storage plus more a tad bit more use on ram usage) which will use more battery. remember like stated above, if you do decide to flash the U firmware, make sure you flash the latest At&t CP being you will have better coverage since youll be on the at&t network.
Synchronicities said:
If I flash the current version of the Unlocked firmware, can I go back to AT&T's or T-Mobile's firmware?
Click to expand...
Click to collapse
I was able to flash back to T mobile from the U, I never tried anything with a At&t variant or the at&t firmware
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
cnewsgrp said:
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
Click to expand...
Click to collapse
Can someone review and comment?
---------- Post added at 12:24 PM ---------- Previous post was at 12:19 PM ----------
black96ss said:
flashing the at&t firmware will just be like having an original at&t s7 edge so yes. The Unlocked firmware will be lighter with no video calling(no carrier apps, no carrier boot animation, some of the quick toggles will be different) you will retain VOLTE HD calling, wifi calling(if at&t has that) and with the at&t you will have all the bloat (about 2-3 GB of used storage plus more a tad bit more use on ram usage) which will use more battery. remember like stated above, if you do decide to flash the U firmware, make sure you flash the latest At&t CP being you will have better coverage since youll be on the at&t network.
I was able to flash back to T mobile from the U, I never tried anything with a At&t variant or the at&t firmware
Click to expand...
Click to collapse
Does Android Pay work on "U" firmware?
Should I get CP from here => https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
I this a good thread for instructions to install U firmware on T => https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
cnewsgrp said:
Can someone review and comment?
---------- Post added at 12:24 PM ---------- Previous post was at 12:19 PM ----------
Does Android Pay work on "U" firmware?
Should I get CP from here => https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
I this a good thread for instructions to install U firmware on T => https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
Click to expand...
Click to collapse
Yes and yes
Sent from my SM-G955U1 using XDA-Developers Legacy app
cnewsgrp said:
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
Click to expand...
Click to collapse
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
pierre3408 said:
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
Click to expand...
Click to collapse
Thanks! I am almost ready. Final checks
- I downloaded 935U firmware from here https://forum.xda-developers.com/tmobile-s7-edge/how-to/4-28-t-mobile-935-firmware-t3597866 (File is G935UUEU4BQD2_G935UOYM4BQD2_TMB.zip)
- I am planning to use ODIN 3.12.7
- Since I am on ATT Network I will use ATT Radio (CP File). I downloaded ATT firmware from here => https://forum.xda-developers.com/att-s7-edge/how-to/odin-files-to-s4bqc2-g935a-t3582874
I will use this CP => CP_G935AUCS4BQC2_CL10280464_QB12904088_REV02_user_low_ship_MULTI_CERT.tar
Am I doing everything right?
Should I just flash all U files (including Radio) and flash ATT Radio later?
Please advise
Hi team
I have the tmo ime version of the s7 edge, but flash the ATT firmware BQC2 and now I can not go back to tmobile firmware or the U firmware I got the following error in Odin:
Error device info
Who can help me,?I going to gift my s7 edge to my brother and he is on Tmobile network
Galaxy S7 active
I have a at&t Galaxy S7 active unlocked and i transfer my service to T-Mobile but I am not able to get updates can I flash T-Mobile firmware so I can have the T-Mobile interface and updates. What do I need to do to get the updates.
All US variants can flash the firmware interchangeably. Just download the corresponding firmware and flash everything(Except for the modem if you'd want to keep the original modem). You dont need anything special. If the default odin dont work, then try the comey "cracked" version.
Eric1084 said:
All US variants can flash the firmware interchangeably. Just download the corresponding firmware and flash everything(Except for the modem if you'd want to keep the original modem). You dont need anything special. If the default odin dont work, then try the comey "cracked" version.
Click to expand...
Click to collapse
Why is it that we use the CP for AT&T; however, use the Unlocked CP for TMobile? Are the radios the same for the unlocked and T-Mobile variants? Where would I get this information if I needed it in the future?
I have a GS7 edge locked to T-Mobile with the Device Unlock app. Will flashing G9350U firmware unlock my device and bypass the Device Unlock app or will I still need to use this app to unlock?
Radios are different. I flashed ATT Radio after I flashed U firmware. Though honestly I cannot tell the difference
cnewsgrp said:
Radios are different. I flashed ATT Radio after I flashed U firmware. Though honestly I cannot tell the difference
Click to expand...
Click to collapse
you did the sae thing that I am currently doing. going from tmobile (I believe) to AT&T firmware. I am going from verison (which shouldn't matter) but when I did it the first time odin 3.12.7 gave me a message of success after only one "sector" of the whole thing went green. but the phone rebooted to an error message. did I do something wrong? help??
Shadow_Sheik said:
you did the sae thing that I am currently doing. going from tmobile (I believe) to AT&T firmware. I am going from verison (which shouldn't matter) but when I did it the first time odin 3.12.7 gave me a message of success after only one "sector" of the whole thing went green. but the phone rebooted to an error message. did I do something wrong? help??
Click to expand...
Click to collapse
Sorry not an expert, but I read several times here to use Price COmsy ODIN and I use that one. Please try
OTA Update is not working after changing to U firmware.
I had stock T Mobile last firwmare installed, but I was sick of poor battery and lag
so installed this firmware https://forum.xda-developers.com/tmobile-s7-edge/how-to/6-8-t-mobile-935u-firmware-qe2-t3619151, full wipe.
Now I have worst battery performance. 12% draining overnight (6 hours) without touching the phone at all. It shows a new update but it fails when I OTA update. looks like the update it's being installed but fails at the end. Don't know what's wrong but totally hate battery.
Edit: Android pay is also not working..
pierre3408 said:
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
Click to expand...
Click to collapse
What pit file did you flash? Did you flash the the pit file Odin pulls from your phone? Did you flash an att specific pit file?

change firmware on sprint v20

i search all over and could not find the answer.
my question is can i install verizon or us996 firmware on the v20 sprint?
i read on some places that v20 firmware are interchangeble
but i cannot find anything confirming that for sprint version
only other variants.
so to make it easy for me and anyone else asking the same question.flashing different firmware on sprint are even possible or is a no go for sprint version.
Flash only boot and system if you want a working phone -- leave the bootloader and firmware alone....
-- Brian
runningnak3d said:
Flash only boot and system if you want a working phone -- leave the bootloader and firmware alone....
-- Brian
Click to expand...
Click to collapse
thanks i will try that.all i want to change firmware is because to sim unlock since im not on sprint and i get the phone extreme cheap,maybe thats why it was cheap

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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Click to collapse
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
Click to expand...
Click to collapse
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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Click to collapse
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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