Possible To Downgrade Back To KK? - T-Mobile LG G2

My wife's phone was recently updated to Lollipop via OTA. Well to keep it short, she now hates her phone.
She wants to get her phone back to KitKat.
Its not rooted.
Is it possible to use the LG Tool to downgrade her software without having any ill effects?
Its the T-Mobile Variant og the LG G2
Sorry if this question has been asked or answered but everything I've read pertained to Custom Roms.
TIA

I would like to know as well.

Double0EK said:
My wife's phone was recently updated to Lollipop via OTA. Well to keep it short, she now hates her phone.
She wants to get her phone back to KitKat.
Its not rooted.
Is it possible to use the LG Tool to downgrade her software without having any ill effects?
Its the T-Mobile Variant of the LG G2
Sorry if this question has been asked or answered but everything I've read pertained to Custom Roms.
TIA
Click to expand...
Click to collapse
You must use the LG Flashtool and appropriate kdz file available in this thread:
LG G2 Stock Firmware (Go Back to Stock) | LG G2 | XDA Forums - http://is.gd/nOqp5c
The instructions are very clear but you need to follow them to the letter.
Be sure to get everything off the phone possible beforehand. You must do a factory reset after the downgrade. You may wish to make sure that the phone is set up to back up apps and data to Google although a restore will usually only restore the apps and not the data. You can back up photos either automatically to Drive via the Google photo app or just copy them from the DCIM folder on the phone to a computer.

Related

Lg Optimus G2x from Wind, rooted & Unlocked

Hi,
I have got this LG optimus G2X from Wind, unlocked, and rooted. The thing is that I am still using 2.2, and for the longest time I have been waiting for an update, yet nothing seems to appear. I was looking around and I found this guide:
http://www.lg-phones.org/how-to-flas...ngerbread.html
To my knowledge it seems pretty legit, but the links are old, and I can no longer get the files I need to perform the upgrade. Do you guys advice me to perform such an upgrade, or should I go for custom ROMs (not a big fan)?
Any help is appreciated, thanks.
Bump!!!
Bump!!!
mald55 said:
Hi,
I have got this LG optimus G2X from Wind, unlocked, and rooted. The thing is that I am still using 2.2, and for the longest time I have been waiting for an update, yet nothing seems to appear. I was looking around and I found this guide:
http://www.lg-phones.org/how-to-flas...ngerbread.html
To my knowledge it seems pretty legit, but the links are old, and I can no longer get the files I need to perform the upgrade. Do you guys advice me to perform such an upgrade, or should I go for custom ROMs (not a big fan)?
Any help is appreciated, thanks.
Click to expand...
Click to collapse
Welcome to the forum!
You have to do some reading to avoid bricking your wind G2X. To update from stock froyo(2.2) you can proceed two directions:
1. Install custom recovery to be safe and then backup your current Froyo ROM, then finally choose your preferred ROM from development section. This procedure will not update your baseband (you probably have the June wind baseband).
Clockwork recovery flash guide:
http://forum.xda-developers.com/showthread.php?t=1056847
2: Updating from stock Froyo to official gingerbread using lg update tool. This procedure will update your baseband to the latest July one, however you will get all t-mobile bloatwares with that stock gingerbread ROM.
Proceed to this thread:
http://forum.xda-developers.com/showthread.php?t=1332350
Option 2 requires stock recovery/ROM. You have those at the moment (i assume), so if you haven't rooted your device yet then give it a shot to have the July baseband.
With both option i would prefer to flash clockwork recovery first, make a backup then if you go with option2 flash back the stock recovery(how toguide is in option 1's link).
You might also wanna use some application/settings/call logs/contacts backup tool which requires root, like titanium backup/my backup. For those to work root your device using one click root:
http://forum.xda-developers.com/showthread.php?t=803682
Make your preferred backup with any of those above mentioned applications, then if you go with option 2, then use super one click to unroot your phone before proceed.
Please take the time to read the instructions, since a couple of folks had issues updating wind handsets to the July baseband.
Good luck!
Sent from my LG-P999 using xda premium

[Q] Best method to get back to full stock ROM for G2 AT&T

Hi, a family member picked up from swappa an lg g2 att, and it came with OmniROM. He simply wants to go back to stock.
I'm not familiar with this phone... Can someone point me to how to safely flash this back to stock? Preferably one that would get any future updates from LG. I think there might be something called "LG Tools" that would perform this? I want to be very careful because I'm not familiar with the brickability of this device, nor any issues around bootloaders, etc.
Thanks!
pmgnet said:
Hi, a family member picked up from swappa an lg g2 att, and it came with OmniROM. He simply wants to go back to stock.
I'm not familiar with this phone... Can someone point me to how to safely flash this back to stock? Preferably one that would get any future updates from LG. I think there might be something called "LG Tools" that would perform this? I want to be very careful because I'm not familiar with the brickability of this device, nor any issues around bootloaders, etc.
Thanks!
Click to expand...
Click to collapse
There's a download for 80020c in this post that has the LG Tools included. It's very simple to use and afterwards, you'll be able to update the phone to the latest: http://forum.xda-developers.com/showpost.php?p=50664059&postcount=1

[Q] Safest Root Method for D80020y

Hi there,
I got a "certified like new" D800 from an At&t Device Support Center recently and it came with the latest OTA D80020y.
I'm trying to figure out what the most conservative way to root 20y would be.
I've looked into:
- IOroot25: Seems like it only supports up to D800 10q.
- Towelroot v3 by geohot: This post makes me think towelroot won't work with 20y (confirms that ioroot won't work either).
- Stump Root?: As I understand it's for Sprint/Verizon G3, but this post confirms that it will likely work on D80020y with a brute force method (not sure what that entails).
So stump root sounds like the only option for rooting on 20y, but does anyone know if there is any issues or risks associated with this brute force method compared with other root methods?
Is the safest way to get root for someone on 20y to simply use the LG Flash Tool and go back to older KK or JB firmware? If that is the case, which firmware is ideal for rooting?
I don't want custom recovery at this point, but I will eventually when I grow weary of the LG overlay.
Hopefully this thread will help others who find themselves on D80020y and want root privileges (or even get recovery for that matter). I think if you're planning on getting recovery and flashing a new firmware, LG Flash Tool is the way to go though. I just don't want to abandon my setup simply for root.
Thanks!
~bokonon9
im on 20y and been using Stump root since day one. Absolutely no issues for me. You brute force it, it takes 2 or 3 minutes then it asks you to reboot. reboot, install superSU then you are golden.
From 20u, I OTA updated to 20y then used Stump to root (bruteforce of course). Everything works fine since.
It works just smooth.. no hiccups at all..
Its worked like charm.. I was really hesitated to root my device as it was my first time to root to get my lost files which I accidentally deleted. I saw this post and thought of giving a try. The steps I followed are
1. Installed stump root on my device (downloaded and transferred from my mac)
2. it will ask permission to Bruteforce and select yes.
3. it takes less than a minute to install
4. restarted twice
5. installed supersu and rootchecker
6. Done.. got ROOT access.
Can anyone please please suggest me how to get deleted files from my LG G2. I deleted 2 files to save memory and later realized that I need that files and it contained my important data.
Please please..
Hey guys I just bought an LG g2 for my little brother and I'm looking for a way to unlock the bootloader... I used stump root to root it like i did my g3 but can't find a way to unlock the bootloader... Even when googling it I can't find nothing... Appreciate the help
Sent from my LG-D850 using XDA Free mobile app
unlock lg g2
cables2590 said:
Hey guys I just bought an LG g2 for my little brother and I'm looking for a way to unlock the bootloader... I used stump root to root it like i did my g3 but can't find a way to unlock the bootloader... Even when googling it I can't find nothing... Appreciate the help
Sent from my LG-D850 using XDA Free mobile app
Click to expand...
Click to collapse
my girlfreind has a lg g2 d80020y like stated above i tryed serveral different methods and only one worked , use autorec that was the only one that worked for me, its also very simple to use theres a video on you tube that shows how to do it, just 3 button clicks and your done but check your model number
I unrooted, OTA'd to 80020y, rooted with stump root and now can't seem to get a recovery installed. Any hints on getting TWRP or CWM?
---------- Post added at 08:35 PM ---------- Previous post was at 08:17 PM ----------
beartrap said:
I unrooted, OTA'd to 80020y, rooted with stump root and now can't seem to get a recovery installed. Any hints on getting TWRP or CWM?
Click to expand...
Click to collapse
FYI, I got TWRP with this download: https://androidfilehost.com/?fid=23329332407585979
non-AT&T users should select the correct file from http://kevinwithtech.blogspot.com/2014/09/how-to-make-lg-g2-look-like-lg-g3.html
So, I have a D80020y unrooted. First I must use Stumproot to get root, and then use Autorec to install TWRP, right?
Also, can anyone explain me if I can use LG Flash Tool on D80020y? Can I use it without root?
Finally!
beartrap said:
FYI, I got TWRP with this download: androidfilehost.com/?fid=23329332407585979
Click to expand...
Click to collapse
You are the effing man!
I completely messed up my wife's new LG G2 by flashing the wrong recovery image through TWRP (like an idiot). My immediate inability to get into recovery mode led me down a rabbit hole filled with failed solutions... each one compounding the problem more and more until it all snowballed into a situation where the 'Settings' function in Android stopped working altogether, I had no recovery, and download mode froze every time I attempted to use it. Despite all this, somehow my computer still recognized the phone as a media device >> All I had left was the ability to drag and drop files into the internal storage.
... and then I came across this magnificent link to AutoRec that you posted and flashed the proper version of TWRP onto the phone effortlessly. I downloaded it, launched it through File Manager, dropped the CloudyG2 Rom onto the SD card, and installed that S.O.B. with ease. THE PHONE WORKS LIKE AN ABSOLUTE CHAMP NOW. Flawless.
I never... NEVER post on forums, but I made this account specifically to tell you "Thank you!". That tiny little link solved countless hours of mind bending stress (and quite possibly saved my marriage) in mere minutes. Cheers buddy! PM me if you get the chance. I want to give you a shout out on my podcast this week.
What is the download link for stumproot?
06VJ said:
Its worked like charm.. I was really hesitated to root my device as it was my first time to root to get my lost files which I accidentally deleted. I saw this post and thought of giving a try. The steps I followed are
1. Installed stump root on my device (downloaded and transferred from my mac)
2. it will ask permission to Bruteforce and select yes.
3. it takes less than a minute to install
4. restarted twice
5. installed supersu and rootchecker
6. Done.. got ROOT access.
Can anyone please please suggest me how to get deleted files from my LG G2. I deleted 2 files to save memory and later realized that I need that files and it contained my important data.
Please please..
Click to expand...
Click to collapse
fc3211 said:
What is the download link for stumproot?
Click to expand...
Click to collapse
http://downloads.codefi.re/jcase/Stump-v1.2.0.apk
here you go
hi,
Is Stump root , wipes all data/factory reset ?
EvilKing009 said:
hi,
Is Stump root , wipes all data/factory reset ?
Click to expand...
Click to collapse
No.
Sent from my LG-D800 using XDA Free mobile app
Sorry folks for bringing up an old post but i need some serious opinion on this one;
-Couple of months ago when there was a deal on eBay when AT&T LG G2 32GB went on sale like real cheap, I've purchased one for myself. Ever since than its been rock solid n performed well on daily tasks. pretty much handles everything i through at it.
-For the last few days i've been going through serious Battery Drain because of Android OS(Kernel), Pics i've attached, kindly check for brief idea about what i'm been through.
-No intention of Rooting it, though I'm aware of rooting devices in the past. But If anyone has encountered such issue and found a way out, i'll be happy. I just don't want to Root my device. That's what the main purpose of this post.
-I've done factory reset once 2 days ago but ratio to Screen On Time to Android OS is always like 1:2, you may check on attachment.
-There's no such app could cause Battery drain, Bcos i've been using the same apps for over a month n never encountered such in the past Or any of other devices.
-If Rooting is the last option then guide me the steps, If I'm doing anything wrong or not.
For the record I've d80020y build come PreInstalled, last OTA for 4.4.2 from AT&T
Steps:
-Fully Charged > Unplug it > Under Settings > Turned on USB Debugging while tapping 7 times on Build number.
-Mark on Unknown application Under Security.
-Insatll Stump Root v1.2 .apk
-Hit Grind > If Message pop ups > choose Brute Force > Ask for Reboot > After that Install SuperSU from PlayStore.
That's all about Rooting the device. But what about Bootloader? How to Unlock the bootloader?
As i go through several thread, it redirects me onto AutoRec to flash TWRP over Stock recovery. But my concern, Does Rooting will Unlocked the bootloader on itself? Or Have to follow fastboot commands to do it.
Do i have to partitioned my device, like External or Internal, as my all previous devices had MicroSD support whereas this one is 32GB Inbuilt.
link to Battery imgs: http://imgur.com/a/JghSL
Kingroot
Sent from my LG-D800 using Tapatalk
Kingroot worked for me (on version d80020y)
LG one click root 1.3 worked for me on Lolllipop 30f

Is being rooted going to be a problem when taking the OTA Lollipop update?

I'm asking for my girlfriend. I have the T-Mobile variant with a custom recovery and I know not to take an OTA because custom recoveries and OTAs don't mix. She, however, has an AT&T variant and she just told me she was prompted to update to Lollipop. She rooted long ago with whatever root for AT&T app was popular at the time.
Doesn't taking an OTA just make you lose root? Nothing else to worry about?
I would not recommend due to the chance it could boot loop. I would wait for a OTA zip and flash through TWRP.
If she is rooted it will break root, If she has a custom recovery (twrp) than it will cause a boot loop.
advice: if she wants lollipop she's gonna have to follow these steps.
http://www.androidrootz.com/2014/07/how-to-unroot-lg-g3-all-variants.html
Going to pass the link on to her now.
There is no custom recovery. She used Stump Root originally to get her phone route, if that makes any difference.
martinezma99 said:
I would not recommend due to the chance it could boot loop. I would wait for a OTA zip and flash through TWRP.
Click to expand...
Click to collapse
Is there an ota zip available for the D850. I froze software updates in titanium backup so I won't loose root.
SGE_DEW said:
Is there an ota zip available for the D850. I froze software updates in titanium backup so I won't loose root.
Click to expand...
Click to collapse
You would still lose root
2SHAYNEZ
Yep.. I went through the whole process of going completely back to stock and then rooted before updating to Lollipop hoping it would stay. It didn't and Stump Root says it's already rooted.
Thanks for this cool tool and method. The LGFlashtool gets up the 'Change to download mode' step adn then fails, with a '[16:10:26] can't change to download mode 00000064' error in the box. Any help would be appreciated. In the meantime I'll try another usb port. Also, when I first ran the Flashtool I had to select from three choices: the default checked off one had the word Korea in it, the second had Brazil and the third had the word Global. I left in on Korea--you think I should have gone with global?
Thanks again, Xamadiex.
Rayvin56 said:
Thanks for this cool tool and method. The LGFlashtool gets up the 'Change to download mode' step adn then fails, with a '[16:10:26] can't change to download mode 00000064' error in the box. Any help would be appreciated. In the meantime I'll try another usb port. Also, when I first ran the Flashtool I had to select from three choices: the default checked off one had the word Korea in it, the second had Brazil and the third had the word Global. I left in on Korea--you think I should have gone with global?
Thanks again, Xamadiex.
Click to expand...
Click to collapse
I read somewhere the LG Flashtool had to be modified at installation to avoid what you are going through.
You're right, it's just a matter of overwriting the megalock.dll file after you install the tool. It was a step I didn't miss. But good news for me, I used another pc and when I installed the flashtool it again gave me the three choices (not sure, but the title bar of the window was something like 'DMB').
This time I chose the 'global' selection and ran the tool as before and it completed for me. I'm currently DL'ing the lollipop update right now. Thanks for the quick reply, netomel.
partylikeaninjastar said:
I'm asking for my girlfriend. I have the T-Mobile variant with a custom recovery and I know not to take an OTA because custom recoveries and OTAs don't mix. She, however, has an AT&T variant and she just told me she was prompted to update to Lollipop. She rooted long ago with whatever root for AT&T app was popular at the time.
Doesn't taking an OTA just make you lose root? Nothing else to worry about?
Click to expand...
Click to collapse
I just received my G3 for AT&T yesterday. It had 4.4.2 firmware on it. I rooted and installed titanium backup and froze all of the AT&T bloatware. Got notification last night that I had a system update available so I went ahead and let it update thinking it would be 4.4.4 but I was wrong. End result, I wound up with a perfectly functional Lollipop with all bloatware removed, but did lose root in the process. I can live with that until someone figures root for lollipop out I think.
hitekredneck said:
I just received my G3 for AT&T yesterday. It had 4.4.2 firmware on it. I rooted and installed titanium backup and froze all of the AT&T bloatware. Got notification last night that I had a system update available so I went ahead and let it update thinking it would be 4.4.4 but I was wrong. End result, I wound up with a perfectly functional Lollipop with all bloatware removed, but did lose root in the process. I can live with that until someone figures root for lollipop out I think.
Click to expand...
Click to collapse
So it installed on your rooted G3? It wouldn't on mine - kept saying rooted device detected or something like that and then refuse to update. That's just fine because i have to have root so I was planning to wait anyway...
p0k3y said:
So it installed on your rooted G3? It wouldn't on mine - kept saying rooted device detected or something like that and then refuse to update.
Click to expand...
Click to collapse
+1
p0k3y said:
So it installed on your rooted G3? It wouldn't on mine - kept saying rooted device detected or something like that and then refuse to update. That's just fine because i have to have root so I was planning to wait anyway...
Click to expand...
Click to collapse
Yes, it installed with no problems at all. And I must say that I am loving it. So glad that I froze all of those at&t apps before I lost root. I am looking forward to root for lollipop so that I can freeze a few more. I must say that this is the best stock android rom that I have ever had the pleasure of using. I will probably stick with it for quite some time because of the speed and excellent battery life.
Lolipop upgrade
Hi iam very new on this forum . I got LGg3 AT&t version D85010f and i cannot upgrade to LOLIPOP always i have com that i have latest soft and need to wait 48h to next check ......plz help me
hitekredneck said:
Yes, it installed with no problems at all. And I must say that I am loving it. So glad that I froze all of those at&t apps before I lost root. I am looking forward to root for lollipop so that I can freeze a few more. I must say that this is the best stock android rom that I have ever had the pleasure of using. I will probably stick with it for quite some time because of the speed and excellent battery life.
Click to expand...
Click to collapse
I call bull****. Lolipop OTA will NOT install on a rooted device. Humor me, what root method did you use?
Vess69 said:
I call bull****. Lolipop OTA will NOT install on a rooted device. Humor me, what root method did you use?
Click to expand...
Click to collapse
Call Bull**** all you want, I don't lie. To be honest, I can't even remember what method I used to root when on KitKat. Then I used TiBu to freeze a bunch of apps that I didn't want or need. Shortly thereafter the update hit me so I went ahead and let it do its thing. As stated, I did lose root afterwards but the apps I had frozen with TiBu remained frozen and everything still worked as it should. I waited patiently for a few weeks until the one click root script became available and used it to root lollipop, then installed TWRP and flashed Cloudy G3 stock ROM which is where I am happily at at this moment.
It could possibly have successfully updated due to the fact that I had not installed a custom recovery, that's the only thing I can think of that would have allowed it to happen on mine, yet not on others that were rooted.
EDIT: After reading back through this thread it jogged my memory. I used the Stump Root method to root while on KitKat.
You'd be the first person reported to be able to do this.
It would be a boon to the AT&T G3 community if you could remember the precise details of how you pulled this off as it would save loads of time and hassle for everyone else who has to restore to KK (which means a full wipe), then take the OTA to L, then root there.
Thanks in advance.
*edit
I think you're L is version 20f, not the latest 21l, based on the date of your posts above.
Further, I'd suppose that what may have happened to you, is that the deivce had already downloaded the L update (from 10f to 20f) before you pulled off the root on KitKat. Then you simply acknowledged the install, which perhaps KK would allow to continue through.
Reports are the L will not allow this. So, going forward, someone rooted on L would not be allowed to complete the install even if the package is already downloaded on the device.
Still, it is, interesting.

Help With Update After Root - Virgin Mobile Variant

Hello, I have the Virgin Mobile LG G Stylo and I had rooted it before I knew that I would not be able to get the Android 6.0 marshmallow update after rooting, as the update shows the android with a red triangle and says "error" after trying to install. I know why this happens, but is there any way to fix this issue so I can update?
Thanks guys!
BTW, I used Kingroot to root it, if that matters.
You HAVE to return to stock, you can't update to MM by just unrooting, you'll brick. You can start on this unbrick page- http://forum.xda-developers.com/lg-g-stylo/how-to/official-boost-lg-g-stylo-unbrick-guide-t3215198 and get the 5.1.1 clean image, and then wait forever for an OTA update, OR, after you've restored the clean image to 5.1.1 from the 1st link use this link to update from your clean 5.1.1 to 6.0. It says 6.0.1 but it's 6.0 http://forum.xda-developers.com/lg-g-stylo/how-to/untouched-6-0-1-boost-sprint-t3285764
I hope you'll reconsider updating. LG has limited MM on our phones and you have to mess around to get adoptable storage that has pitfalls, and you can ONLY get temp root now and we may NEVER get full root and with virgin /boost/sprint they have on MM limited the internal storage and even if you have a large sd it will say it's full and you can't move apps. I'd try to check up on what you'll lose and just hold off to see if some major player comes up with a root, a real root. Many of the temp roots now are bricking and it's rough sending it in to LG. Do think twice and read up. Good Luck You can always move forward from Lollipop, but you cannot go back to Lollipop from MM
Thanks very much. I have ran into another issue. I dont know why this happened, but now when turn on the phone, it will stay at the virgin mobile screen when the sd card is in, but when the sd card is out, the phone will boot to the screen where it says "Starting Apps" then it will stay there for ever. I dont know what I did, but before this I tried using super sume to replace king root with supersu, which didnt work, and and I also installed titanium backup, but didnt use it. That is all I did different. What is wrong?? LG offered to repair it, it is still under warranty, but I want to fix it myself if at all possible. Please help, thanks!
Also, if I follow those instructions you gave me to turn back to stock, how do I know if I have ZV4 or ZV5, and what does ZV4 or ZV5 mean?
ctcollins9 said:
Also, if I follow those instructions you gave me to turn back to stock, how do I know if I have ZV4 or ZV5, and what does ZV4 or ZV5 mean?
Click to expand...
Click to collapse
You go on the settings of the phone, click on the software info, but I think ZV5 is 5.1.1 and ZV4 is 5.0.2. You definitely need to use the exact right one or you will be really bricked.
The thing is, I cannot get into my phone now. I am pretty sure it was 5.1.1 but I don't know for sure.
Sent from my Nexus 7 using Tapatalk

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