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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 way to recover from soft brick..?

Hi all...
OK, so I've rooted and ROMed a few phones in the past, and I generally know what I'm doing. However, I think I may have gotten a little bit overconfident this time and not done enough research...
I had a friend give me one of these phones and I decided that before making it my daily driver, I was going to install CM11. The phone was given to me unrooted with the stock 4.3 ROM. So, I found a guide to root the 4.3 version of the phone w/o triggering the warranty killbit, and that all went well. Once rooted, I decided to use Clockwork ROM Manager to throw CM11 on it. I installed CM and, without giving it a second thought, told it to flash the latest CM recovery (apparently my root method had come with TWRP). When I rebooted, I expected to see the nice recovery screen I was used to, but instead I was informed that I needed to take my phone to the nearest Verizon store and have them restore it (no thanks). I can, however, still get in to the Odin downloader, but this is uncharted territory for me. Assuming everything is OK with my firmware, what is the best/fastest way to recover from this point? I think I understand how Odin works, but I don't know much about it. Can I use Odin to flash the latest TWRP and fix it that way? Would it be better to try and flash completely back to stock and start over? If I'm forced to use Odin anyway, can I just flash CM11 from there? I have no idea what to do...
I would greatly appreciate any guidance anyone of you ROM wizards is willing to part with...

Fix with this:
http://forum.xda-developers.com/showthread.php?t=2586319
Then read all of this, no AOSP on 4.3:
http://forum.xda-developers.com/showthread.php?t=2639337
Sent from my HTC6525LVW using Tapatalk

[Q] Need help flashing custom ROM

Hi Everyone,
As this if my first post just wanted to say that I'm relatively new to customizing my Verizon HTC One M8 and really tried to search around here as well as other places to find answers but I really just wound up getting confused and bogged up in all the different scenarios and things that worked in this version but don't know etc. so apologies if I'm asking a bunch of newbie questions I after a lot of hours I really just couldn't find an up to date comprehensive guide.
So basically I have a Verizon HTC One M8 running Android 4.4.4. and I want to install a custom ROM most likely the DigitalHigh GPE or Skydragon not sure which but regardless I just read a bunch of different guides and started getting frustrated when they didn't work (like going the HTCDev route to realize that that route isn't supported by Verizon or whatever). Currently I have Sunshine installed and am waiting to verify that I can move forward before paying for it.
My question is after I pay for and run sunshine whats the exact route I take to get to where I want to go? I've searched around and found guides but I don't want to be stuck with outdated information that might not work. Thanks a lot for any help you guys can give.

sturdly said:
Hi Everyone,
As this if my first post just wanted to say that I'm relatively new to customizing my Verizon HTC One M8 and really tried to search around here as well as other places to find answers but I really just wound up getting confused and bogged up in all the different scenarios and things that worked in this version but don't know etc. so apologies if I'm asking a bunch of newbie questions I after a lot of hours I really just couldn't find an up to date comprehensive guide.
So basically I have a Verizon HTC One M8 running Android 4.4.4. and I want to install a custom ROM most likely the DigitalHigh GPE or Skydragon not sure which but regardless I just read a bunch of different guides and started getting frustrated when they didn't work (like going the HTCDev route to realize that that route isn't supported by Verizon or whatever). Currently I have Sunshine installed and am waiting to verify that I can move forward before paying for it.
My question is after I pay for and run sunshine whats the exact route I take to get to where I want to go? I've searched around and found guides but I don't want to be stuck with outdated information that might not work. Thanks a lot for any help you guys can give.
Click to expand...
Click to collapse
Since you are on 4.4.4 you first have to figure out if Sunshine will work on your phone, it's more recommended for users on 4.4.3 but you can still try as some people have had success. If it doesn't work, it will not charge so you don't have to worry. about paying and it not working.

sturdly said:
Hi Everyone,
As this if my first post just wanted to say that I'm relatively new to customizing my Verizon HTC One M8 and really tried to search around here as well as other places to find answers but I really just wound up getting confused and bogged up in all the different scenarios and things that worked in this version but don't know etc. so apologies if I'm asking a bunch of newbie questions I after a lot of hours I really just couldn't find an up to date comprehensive guide.
So basically I have a Verizon HTC One M8 running Android 4.4.4. and I want to install a custom ROM most likely the DigitalHigh GPE or Skydragon not sure which but regardless I just read a bunch of different guides and started getting frustrated when they didn't work (like going the HTCDev route to realize that that route isn't supported by Verizon or whatever). Currently I have Sunshine installed and am waiting to verify that I can move forward before paying for it.
My question is after I pay for and run sunshine whats the exact route I take to get to where I want to go? I've searched around and found guides but I don't want to be stuck with outdated information that might not work. Thanks a lot for any help you guys can give.
Click to expand...
Click to collapse
Hey bud, we'll get you where you need to be. First off, unless it's the 4.4.4 under the Verizon forums, don't flash Skydragon as it is for the GSM version. I would recommend going with DHs, but beware *some* people have issues with data with that ROM. Here's the easiest way to get you where you need to be.
1. Go ahead and get S-off with sunshine. With S-off, you can flash RUUs.
2. Download this RUU and place it on your sd card, or use the executable method, both work flawlessly. Note that this will reset your phone, but you're flashing a ROM anyways. This is rooted. http://forum.xda-developers.com/ver...ent/ruu-m8vzw-4-4-4-s-off-onlynewest-t2914914
3. Confirm root and download flashify from the playstore.
4. Flash the recovery of your choice (most, myself included, prefer TWRP)
Now you are rooted with a custom recovery and good to go. If you flash DHs GPE, you will need to update to the 5.0 firmware first for best results. To do this, just place it (https://www.androidfilehost.com/?fid=95832962473400175) on your sd card and boot into hboot by turning off your device, then hold volume down and the power button until it boots into a white screen with multi-colored text. This is hboot. From there, the device should auto detect the firmware on your sd card and press volume up to flash it. Volume up once more to confirm it. To confirm that you are on the new firmware, go back into hboot and check the opendsp number, it should something other than 46.2.2. Delete the firmware from your sd card so hboot doen't keep prompting you to run it every time you boot into hboot. From here, you should be all good to flash DHs ROM. If there is anything else I can help with or you get stuck at any point, let me know and we'll figure it out.

bjoostema said:
Hey bud, we'll get you where you need to be. First off, unless it's the 4.4.4 under the Verizon forums, don't flash Skydragon as it is for the GSM version. I would recommend going with DHs, but beware *some* people have issues with data with that ROM. Here's the easiest way to get you where you need to be.
1. Go ahead and get S-off with sunshine. With S-off, you can flash RUUs.
2. Download this RUU and place it on your sd card, or use the executable method, both work flawlessly. Note that this will reset your phone, but you're flashing a ROM anyways. This is rooted. http://forum.xda-developers.com/ver...ent/ruu-m8vzw-4-4-4-s-off-onlynewest-t2914914
3. Confirm root and download flashify from the playstore.
4. Flash the recovery of your choice (most, myself included, prefer TWRP)
Now you are rooted with a custom recovery and good to go. If you flash DHs GPE, you will need to update to the 5.0 firmware first for best results. To do this, just place it (https://www.androidfilehost.com/?fid=95832962473400175) on your sd card and boot into hboot by turning off your device, then hold volume down and the power button until it boots into a white screen with multi-colored text. This is hboot. From there, the device should auto detect the firmware on your sd card and press volume up to flash it. Volume up once more to confirm it. To confirm that you are on the new firmware, go back into hboot and check the opendsp number, it should something other than 46.2.2. Delete the firmware from your sd card so hboot doen't keep prompting you to run it every time you boot into hboot. From here, you should be all good to flash DHs ROM. If there is anything else I can help with or you get stuck at any point, let me know and we'll figure it out.
Click to expand...
Click to collapse
Thanks so much for the detailed explanation! I suppose its worth mentioning that my end goal is to run a ROM that's close to stock Android 5. Certainly don't mind resetting my phone, I have my contacts and whatnot backed up and being my first android phone I have tons of crap I don't need on it anyway. That being said, would you recommend DH's ROM or another one for my needs? Also in step 2, to clarify, once I apply the RUU that will root my phone or will I have to do that with a separate method?
Also @The Stig 04 thanks for the heads up, I ran the test they have and it told me it would work with 4.4.4, certainly reassuring that they'll refund if it doesn't work so appreciate that

sturdly said:
Thanks so much for the detailed explanation! I suppose its worth mentioning that my end goal is to run a ROM that's close to stock Android 5. Certainly don't mind resetting my phone, I have my contacts and whatnot backed up and being my first android phone I have tons of crap I don't need on it anyway. That being said, would you recommend DH's ROM or another one for my needs? Also in step 2, to clarify, once I apply the RUU that will root my phone or will I have to do that with a separate method?
Also @The Stig 04 thanks for the heads up, I ran the test they have and it told me it would work with 4.4.4, certainly reassuring that they'll refund if it doesn't work so appreciate that
Click to expand...
Click to collapse
No problem buddy! DHs is GPE, so it'll be the closest to stock android that you can get right now, well Google's take on Android anyways. There are a few AOSP roms running around, but I personally have never had an AOSP ROM run in the past year that wasn't ridden with bugs. Plus DHs ROM has an almost completely working Sense camera, which I personally found as a plus since the quality of the 4 ultra pixels on AOSP is almost painful haha. I think another good rom that is actually Sense based but looks and functions a lot like stock Lollipop is Unsense. So step two where you run the RUU will actually redownload and install the same version of OS you have now but it will come rooted and no other further action will be needed to have root access. I found this to be the easiest way to go about it without having to use ADB to install TWRP and flash SU. It takes a few minutes longer since it has to reinstall the OS but is less steps than the ADB route and far easier to explain. Either one will provide the same result, I just prefer the simplicity of running the RUU

bjoostema said:
No problem buddy! DHs is GPE, so it'll be the closest to stock android that you can get right now, well Google's take on Android anyways. There are a few AOSP roms running around, but I personally have never had an AOSP ROM run in the past year that wasn't ridden with bugs. Plus DHs ROM has an almost completely working Sense camera, which I personally found as a plus since the quality of the 4 ultra pixels on AOSP is almost painful haha. I think another good rom that is actually Sense based but looks and functions a lot like stock Lollipop is Unsense. So step two where you run the RUU will actually redownload and install the same version of OS you have now but it will come rooted and no other further action will be needed to have root access. I found this to be the easiest way to go about it without having to use ADB to install TWRP and flash SU. It takes a few minutes longer since it has to reinstall the OS but is less steps than the ADB route and far easier to explain. Either one will provide the same result, I just prefer the simplicity of running the RUU
Click to expand...
Click to collapse
Right on, I'll probably stick with DH's ROM. Thanks again, I'm about to hunker down and start this process, lol I'm glad I made the switch but am mildly missing the days where I could just click a few buttons and have a Jailbroken iPhone.

sturdly said:
Right on, I'll probably stick with DH's ROM. Thanks again, I'm about to hunker down and start this process, lol I'm glad I made the switch but am mildly missing the days where I could just click a few buttons and have a Jailbroken iPhone.
Click to expand...
Click to collapse
I had an Ipone for about 3 months and never had the guts to modify to because I didn't know how to fix it if I broke it haha. There are a lot of individual steps but the process as a whole should go smoothly. Just follow the threads and you will be fine and if you get snagged on anything or need clarification, just let me know man!

bjoostema said:
I had an Ipone for about 3 months and never had the guts to modify to because I didn't know how to fix it if I broke it haha. There are a lot of individual steps but the process as a whole should go smoothly. Just follow the threads and you will be fine and if you get snagged on anything or need clarification, just let me know man!
Click to expand...
Click to collapse
Hey just wanted to let you know I just finished up and it worked like a charm. Love my new phone! Thanks again!

sturdly said:
Hey just wanted to let you know I just finished up and it worked like a charm. Love my new phone! Thanks again!
Click to expand...
Click to collapse
Awesome man! I'm stoked for you, enjoy and no problem!

Need a little guidance

Hey everyone. I was wondering if some here with a HTC One can point me in the right direction. I am looking to finally take the plunge and permanently root, flash a custom recovery, backup my stock, and install a new custom rom on my Verizon M8.
This is my first HTC device playing with, I have always had Motorola stuff and am pretty familiar with the process on those, but this HTC stuff is still a little blurry. S-on/off, CID, MID, RUUs????
I have been reading these forums for quite a bit and still a little unsure about what the steps would have to be. I am currently on the latest stock VZW temp rooted with the new weeksauce basically just to have tethering via a 3rd party app (Wifi tether router). I actually really, really like the stock Sense 6.0 UI and this phone is pretty much perfect all around.
What I want to do is, permanently root, install TWRP as that's what i've used on Moto and my Sammy Tab, backup my stock system so I can go back, and then install a custom ROM. Can TWRP on this do more than one ROM slot and run dual roms? What if everything gets jacked up and I have to go back to complete out of the box stock? How is that done with HTC? I think with Moto it was like an .FXZ file or something like that and you boot the phone into download mode and just flash that file from the computer and you're back to 100% stock. Same with Samsung using ODIN.
I'm also not sure what ROM I want to try, so I am open to suggestions there too. I would like to maybe try a pretty clean Lollipop ROM with good battery life and very stable. Would that be the GPE?
Thanks for reading and for any help.

baune7 said:
Hey everyone. I was wondering if some here with a HTC One can point me in the right direction. I am looking to finally take the plunge and permanently root, flash a custom recovery, backup my stock, and install a new custom rom on my Verizon M8.
This is my first HTC device playing with, I have always had Motorola stuff and am pretty familiar with the process on those, but this HTC stuff is still a little blurry. S-on/off, CID, MID, RUUs????
I have been reading these forums for quite a bit and still a little unsure about what the steps would have to be. I am currently on the latest stock VZW temp rooted with the new weeksauce basically just to have tethering via a 3rd party app (Wifi tether router). I actually really, really like the stock Sense 6.0 UI and this phone is pretty much perfect all around.
What I want to do is, permanently root, install TWRP as that's what i've used on Moto and my Sammy Tab, backup my stock system so I can go back, and then install a custom ROM. Can TWRP on this do more than one ROM slot and run dual roms? What if everything gets jacked up and I have to go back to complete out of the box stock? How is that done with HTC? I think with Moto it was like an .FXZ file or something like that and you boot the phone into download mode and just flash that file from the computer and you're back to 100% stock. Same with Samsung using ODIN.
I'm also not sure what ROM I want to try, so I am open to suggestions there too. I would like to maybe try a pretty clean Lollipop ROM with good battery life and very stable. Would that be the GPE?
Thanks for reading and for any help.
Click to expand...
Click to collapse
First you need s-off/unlocked boot loader to perma root..also there is multi ROM support for this device. An if you want to return to pure stock cause something got messed up then you download the ruu an use fast boot via pc to flash your ruu.zip it will wipe your whole phone an return you to out of the box. if your looking for a sense Lollipop from. Santod has a nice ROM an you can also check out the ROM by andybones is also runs very nice an has themes an mod support. If you like GPE then there is one of those also for our device.

Thanks for the info. So in my reading up on doing this, is the "firewater" method of achieving S-off and root no longer working on this phone with 4.4.4? And also, as I understand it, the Sunshine method of achieving the two may or may not work on 4.4.4 either, kind of a 50/50 shot??? So I guess at this time it might just be worth it to wait until either the new sunshine is released or Verizon pushed the 5.0 update out and see what that is like.

baune7 said:
Thanks for the info. So in my reading up on doing this, is the "firewater" method of achieving S-off and root no longer working on this phone with 4.4.4? And also, as I understand it, the Sunshine method of achieving the two may or may not work on 4.4.4 either, kind of a 50/50 shot??? So I guess at this time it might just be worth it to wait until either the new sunshine is released or Verizon pushed the 5.0 update out and see what that is like.
Click to expand...
Click to collapse
Firewater is dead....sunshine might work you can download the app for free an run it to see if it will work with your device is free too. Then if you want to run sunshine that's when you pay the 25...so I would advice against taking anymore ota till you r able to s-off.

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.