yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
It's actually pretty good, I flashed that along with V6 turbo inject, and another mod which I actually need to put on there. I'm having a decent battery life with Greenify and everything else running as well aha. It's very efficient. If you're going to flash V6 with thunderbolt, make sure you flash V6 first. V6 removes all pre-existing performance scripts when it's flashed, so I just did that first and then thunderbolt, along with the third that I'm going to add in now. I highly recommend it(: My phone was a bit warm for the first two hours last evening, but now it's back to normal aha.(:
[LG Optimus L9 P760, P765, P768, P769] creepinm3:
So, I could not repair my device...ended up calling T-mobile for a replacement. So when my replacement comes, I'll follow [MENTION=307193]llx[/MENTION]aot signature and just remain stock rooted. Shame that LG doesn't offer a unlockable bootloader for their USA devices.
[LG Optimus L9 P760, P765, P768, P769] dinhhviet:
Yes it works, check this thread for more info http://xdaforums.com/showthread.php?t=2198114
[LG Optimus L9 P760, P765, P768, P769] SpartanG01:
That doesn't answer my question? That's a different method and says nothing about working specifically for my phones version and has just as many people saying it didn't work for them.
[LG Optimus L9 P760, P765, P768, P769] dinhhviet:
This video stems from that, I'll leave it as that. I'd recommend you read through that thread and others more qualified than me can help you. Good luck man.
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
IT'S THE SAME METHOD THAT HAS BEEN USED BUT NOW ON A VIDEO TUTORIAL!! OK? SO here is your answer.. IT WORKS!!! not for all, as you have read me being 1 of them but it DOES WORK, someone provided you with a link with info how or why the vid and you brushed off as is not your answer that gives you step by step what to do and why your doing it, so USE SEARCH there is plenty of post with the info you need and the success stories....and duhhh why would they make a Rom for P769 if you can't flash it???

So my friend besides that vid and the link they gave you Search and Read!

Information = Knowledge = Power ;)
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
I can teach you how to fix it mate. Then you can put allllll the mods you want on it.(: Interested?
[LG Optimus L9 P760, P765, P768, P769] RavenII:
Pardon my ignorance...but...if my buddy's phone currently has V20d on it (out of the box)...I'll need to downgrade to 10g? Also, what if he updates his other phone to 20f OTA...before I get to unlock/root it?...am I sol? or does this method work on 20f also? I'm not new to bootloader unlocking/rooting...but DAMN does LG suck for this...
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
In the video he's flashing from 20F to 20B EURO ;)
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
You can flash anything mate lol. (; I recommend going to V20F first however.
[LG Optimus L9 P760, P765, P768, P769] dealkk:
tmobile v20d root

I have tmobile usa v20d. i think it lock bootloader. I have not rooted it yet. tmobile have an update to v20f ,but i have not done it yet. here is my question.

i want to root my device, what should i do? update and try to root or do not update? can someone give me link show how to root tmobile version?
[LG Optimus L9 P760, P765, P768, P769] SpartanG01:
Excuse me of course you are right, I had watched the first quarter of the video and read that post and the way they present the information is slightly different i misunderstood, they do represent the same method.

However, I was aware it's possible. As I stated clearly in my first post I have searched and read a dozen threads on the subject but it seems like every person on every thread i read has failed to get it to work and the ones that have gotten it to work had different version numbers than my phone before flashing or had previously unlocked their phones and a lot of the threads list those two factors specifically as having bearing on the users success with installing new roms to their phone, that was the only reason for my concern and what I was requesting some clarification on "Is this doable on my phone model from my carrier with my current version number" because there seemed to be heavy debate about it around the forum. While I do appreciate your veiled sarcasm I could've lived without it. That all being said if you say it works (despite you not having managed it successfully your self) I'll give it a shot and let you guys know what happens.

Thank you to the person who provided me the link I originally misunderstood your intent and though that didn't answer my question it did provide a bit more context as to how successful I might be at this so I do appreciate that.
[LG Optimus L9 P760, P765, P768, P769] RavenII:
So Ilxaot, accept the 20f ota? then do the whole thing?
[LG Optimus L9 P760, P765, P768, P769] rottenralph:
I just rooted my phone. i used the provided files and follow the steps carefully. i tried different roms, no luck, the screen were mirrored and the colors were inverted even i flash 'touchscreen fix'. the only rom works for my phone is this one: http://xdaforums.com/showthread.php?t=2216542

does anyone here having the same problem?

and by the way, i tried to update my clockworkmod via rom manager, and after that everytime i boot the recovery im having the same problem(mirrored screen)

i'm using Lg Optimus L9 P769
[LG Optimus L9 P760, P765, P768, P769] creepinm3:
I sent you a message on HANGOUTS via Google Plus. :)
[LG Optimus L9 P760, P765, P768, P769] :
Unlocking this thing will be the end of me :eek:

I've gone up till the point where you need to input the unlock command, but the only thing that happens is a reboot.

I was on 20F, but went back to 10G and started the unlock process from there.

I've tried around 3 or 4 times by flashing 20B, flashing the radio, then waiting around an hour, but still just get stuck with reboots.

Any ideas?
[LG Optimus L9 P760, P765, P768, P769] Lelus:
Did you do a factory reset after flashing 10g ?
[LG Optimus L9 P760, P765, P768, P769] :
Yup, I always hard reset after flashing.
[LG Optimus L9 P760, P765, P768, P769] Lelus:
I would probably flash xloader and uboot from ics x and u(unpack it to sdcard) you need to be rooted

adb shell su -c busybox dd if=/sdcard/external_sd/p1.bin of=/dev/block/mmcblk0p1
adb shell su -c busybox dd if=/sdcard/external_sd/p2.bin of=/dev/block/mmcblk0p2

-factory reset

offline flash 10g

-factory reset

enable usb debugging , show touches and show touch data

offline flash euro open 20b( I wouldn't worry about root or radio)

wait at least 30 minutes try adb reboot oem-unlock
[LG Optimus L9 P760, P765, P768, P769] :
Tried as you said, but just rebooted with no unlock confirmation :/
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
I flashed 20f to open and it did not work for me. I will be trying again this week with a logcat all the way through saving all partitions before and after. Has this worked for anybody coming from jellybean to open firmware?
[LG Optimus L9 P760, P765, P768, P769] Lelus:
No sure what else you can do other than leaving your phone on for longer time and trying with wifi off/on
[LG Optimus L9 P760, P765, P768, P769] RavenII:
I'm getting a "Scheduled server maintenance" error when I run the web upgrade..I'm running shttp and modified my hosts file...any ideas?
[LG Optimus L9 P760, P765, P768, P769] :
Yeah I'll keep at it. I appreciate the help though!
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
My next try will be using my current setup (already flashed unlock u boot and x) . Then pull partitions from open firmware to see if the NV partion is renamed NV data like it should be.
[LG Optimus L9 P760, P765, P768, P769] Cromzz:
I'm already rooted, can anyone summarize what I have to do next?
[LG Optimus L9 P760, P765, P768, P769] dinhhviet:
To summarize, you need to flash a euro kdz then unlock bootloader, flash back to american version, root and flash recovery. Please read this thread http://xdaforums.com/showthread.php?t=2198114 and watch the video in this thread for more info, there is really no good way to summarize it.
[LG Optimus L9 P760, P765, P768, P769] cjweng:
what is the reason behind waiting 30 minutes or longer?

If I try unlock before 30 minutes , it fails, it will be not useful wait longer after that?
[LG Optimus L9 P760, P765, P768, P769] shucrut:
I own a p768 and was trying to do what u did, but after the adb shell commands, I rebooted my phone and it screen remains black, nothing was shown but phone is functional, it played the boot sounds etc. I think x and u are specific for the different models
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Same thing happen to me second time I tried sending the command phone just went black, had to remove bat and reboot to see screen..actually happen to me like 3 times lol, so don't give up...HAVE TO START From beginning

i'm not sure about x and u being model specific but maybe ask Carloswii5, Lelus, AntonX, Kuma, Kid_Ding, pinoyto or even Artas .......I have exp with samsung and htc and hp tablet but my first LG an so far this is the worst phone to work yet is the safest to not get bricked ........so far :fingers-crossed:

Try it again who knows took me 3 days of flashing...but got it! lol :p
[LG Optimus L9 P760, P765, P768, P769] shucrut:
Just one more thing: you waited the 1 hour with the phone plugged in sub ornot?
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
phone plugged in the usb, had no service signal, but the sim was IN and wifi was on!
[LG Optimus L9 P760, P765, P768, P769] shucrut:
I'm already doing the procedure, just need to wait 1 hour now. Debugging and show touches still on in v20b?
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
As you probably noticed by now, after doing the resets... no lol! oh the joy of playing around with the screen :silly:
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Now that you have unlocked the bootloader, fix the inverted lg logo at boot, by flashing the u-boot from the 20f kdz.
[LG Optimus L9 P760, P765, P768, P769] shucrut:
i dont have problems with screen cause my model is P768 :D but still, bootloader locked for me :(
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Any Links with the info on where to get the flashable 20f kdz's u-boot?
[LG Optimus L9 P760, P765, P768, P769] kuma82:
I'll pull it from my phone later, but if you don't want to wait, you can extract it from the kdz, by following the guide in my signature.

here is a flashable zip I made.

;)
[LG Optimus L9 P760, P765, P768, P769] tombassi:
can I flash this on cm10.1 or I have to restore v20f first ?
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Just flash in cwm or twrp

You don't have to change anything.
[LG Optimus L9 P760, P765, P768, P769] tombassi:
woow man it worked , thanks

I thought it's impossible to fix it , as I tried with the ics x & u from lelus and I got soft brick when flashing the twrp from nandroid manager so I wiped completely using lelus fastboot and flashed 10g then unlocking the bootloader again .
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Your welcome

I think lg was being lazy when they made this kdz(20f), Lol.
[LG Optimus L9 P760, P765, P768, P769] tombassi:
I was unable to flash cwmtouch or twrp they gave me security error , (sign of bootloader locked back) also S/W mode didn't say anything and even in hidden menu it shows locked , so yes I did the unlocking processes from a to z but after the oem command the phone goes directly to fastboat .

I was so confused but very happy to get my cm10 back .
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Oh, I see.

Yeah, before only the 20b u-boot would recognize our unlock status (or anyone of the unlockable kdz's). But now the 20f u-boot recognizes our unlock status.

If you would have just flashed the 20b u-boot in fastboot, you would have been all good ;)

I bet you wished you knew that back then. Live and learn huh ;)
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Thank you kuma going to dl now and flash!

Update:Flashed with cwmtouch, worked perfectly. thank you!!
[LG Optimus L9 P760, P765, P768, P769] abced123:
i came across this http://design-extreme.net/unlock-bootloader-for-lg-optimus-l9-at-official-jelly-bean-firmware/ . It seems so simple to unlock . Anyone think it s creditable ?
[LG Optimus L9 P760, P765, P768, P769] BioDesigner48:
It doesn't work on p769.

I've amongst others have tried and it just reboots normally

sent from my locked rooted P769 v20f

I'm on YouTube (BioDesigner48)
[LG Optimus L9 P760, P765, P768, P769] mrmathematica:
http://xdaforums.com/showthread.php?t=2385384

Looks like a lot of people (me included) can't unlock it. P760 JB installed fine, the screen is hard to operate, but with a lot of time I can do things. "adb reboot oem-unlock" just reboot the phone.

a few questions:

1) does "fastboot" driver needs to be installed before unlock? OP doesn't mention this, and I haven't have fastboot installed on the PC side.

2) I have 2G signal from T-mobile, and data working through WIFI. Waited more than 30 min, and tried more than once. Some one mentioned the data should also go through SIM instead of WIFI. Can anyone (OP, Lulus, or any other expert) comfirm that?

Edit: I tried again and it worked out. I now understand that fastboot drive is used to install CWM. I missed that. Also this time I'm still only on WIFI. No sure why my earlier attempts failed :)

If nothing else, I will go back to stock, hoping the screen fix will work without supprise. Figures crossed...
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Hey, does this fix inverted recovery, too? Thnx
[LG Optimus L9 P760, P765, P768, P769] kuma82:
It should, I haven't checked it out. Just make sure the recovery is not for the p760
[LG Optimus L9 P760, P765, P768, P769] tombassi:
the inverted recovery was fixed since the test build of anton on 21 / 7 .
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Well the uboot flash fixed the lg logo but cwm is still inverted v6.0.3.1 touch. I have scoured the threads and the goog, but can't seem to find the test build your referring to. Does anyone have a link to the fixed recovery img?? I'd sure appreciate it!!
[LG Optimus L9 P760, P765, P768, P769] kuma82:
I have something better, how about twrp
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Kuma as I have never used TWRP how much better or what features does it have compared to cwmtouch or 4EXT Recovery Touch? :confused:

Forget it Google is my friend lol! as I can se much better recovery and closer to 4EXT i used on my htc. thanks anyways!
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Sure, team win recovery would be great!
[LG Optimus L9 P760, P765, P768, P769] tombassi:
sorry for late reply , check post 159 in Anton's cm 10.1 thread he removed the link for that build , try flashing the recovery img with nandroid manager , I never used fastboot to flash cwm recovery
[LG Optimus L9 P760, P765, P768, P769] Meda808:
I have stored the TWRP for p769 done by Lelus on my dropbox

https://www.dropbox.com/s/5kpi565fqeup0ck/p769-twrp.img
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Here you go a folder with all 3 cwm, cwmtouch and twrp recovery for the L9-P769 and fastboot in the folder if needed.

L9 P769 Recovery + Fastboot

I don't know if there is another command, but to boot to fastboot and flash I just used the same reboot oem-unlock command to bring me in fastboot and then just flashed the recovery, or if you have cm10.1 like me go to: Settings > Developer options and check Advance Reboot. Now when you press reboot on phone will give you the choice of Reboot, Recovery, Bootloader.
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Thank you sir! Hey I can use dd to push one, correct? Which mmcblk is recovery on p769?
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
you can flash from fastboot is already on your phone just make sure you activate developer options, just in case here is how.

Settings > About > press build number a couple of times then you will see a prompt that your so may # away from the options once they activate go back out to: Settings > Developer Options

and check Advance reboot, now long press power > reboot and now you have 3 options reboot, recovery and bootloader pick bootlaoder and flash the "your preferred recovery.img"

on that second question about the mmcblk I have no clue :confused:
[LG Optimus L9 P760, P765, P768, P769] animusFL:
OK, I was just going to use term and the dd command but since I already have dev options and advanced reboot clicked I'll just do it that way, thanks!!! :thumbup::sly:

Edit: whups, that's not what I was hoping for, you still need a pc to flash. I'm just trying to do this on my phone, no pc. I should be able to push recovery while phone is booted normally, as recovery block isn't being used. I will do some searching for correct mmcblk but if anyone knows offhand which one is recovery I'd appreciate it. ROM mgr says device not supported so that is a no go. Thanks
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
So you put the recovery.img on the sd > booted to bootloader > flashed the rec.img and it didn't work?
[LG Optimus L9 P760, P765, P768, P769] animusFL:
I can boot to fastboot, but I must be stupid today, cuz I can't figure how to input a choice on phone when there. Tried diff keys key combos with no results, power off works tho. Sorry
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Vol +/- doesn't work?? weird :eek:

let me try on mine have cwmtouch gonna try and flash twrp....
[LG Optimus L9 P760, P765, P768, P769] animusFL:
No idea why it wouldn't work. but I got it with nandroid mgr. Recovery isn't mirrored anymore w00t! Thanks elpuertorro and tombossi
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Lmao you need the pc to send the commands....duhhhh, goona try nan mgr , did you flash one the img I uploaded or your own? just want to make sure lol
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Flashed your copy of twrp :victory: all is good

Edit: man am I happy!!! Unlocked, no mirrored screen anywhere, twrp and Anton's cm10.1 Ahhhhhh!!
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Sorry guys life got a hold of me, and I've been busy all day. Glad you got everything you needed. Yeah that twrp is so much better then cwm.

Note to boot into recovery (twrp) from fresh boot

Is

Volume (down) + home + power

If I'm not mistaken, you can press vol (up or down) with cwm (plus the other keys)
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Thanks for the hard key tip. I have advanced reboot enabled, or can use terminal reboot recovery. The V20f uboot flash fixes the logo and the fastboot mirror off the bat. Installing twrp (my old friend) with nand mgr fixed the inverted recovery. Thanks to everyone!
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
Do you have the guide in written?.... My internet is slow (dial up) and can barely watch the video which is 30min long..
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Read back a few pages you have the basics, now go to youtube press play once it starts pause go get something to eat, use the bathroom then come back the vid should be loaded ;)
[LG Optimus L9 P760, P765, P768, P769] pisherthefisher:
I already flashed cm10.1, will flashing the 20F uboot to fix the inverted logo mess anything up?
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
NoT if you do it right, all you should do is enter recovery and flash then reboot.
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Any mod reading this? why isn't this pinned , stickied or something i know this is an international forum but a lot of these T-mo/Metro L9 P769 will keep popping up and since we know this method works why not????
[LG Optimus L9 P760, P765, P768, P769] webdoctors:
Carlos, you refer to storing the new ROM You want flashed on your SD card at the beginning of the video, and I imagine its the V20F,

I saw the V20F ZIP here so I put that on my SD card:

http://xdaforums.com/showthread.php?t=2136204

also at the beginning of the video you said make sure view touch is enabled, how do I enable that? Is that an option in the OS somewhere? I haven't seen it and I googled for it too.

Thanks for the clarification,
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
For touches go Settings > Devoloper.... > Scroll down and check "Show touches".
[LG Optimus L9 P760, P765, P768, P769] webdoctors:
Thanks, I'm at the part of the process where I wait 30 minutes and than run adb oem-unlock but after reboot it just boots up normally and doesn't show that boot unlock option that Carlos mentioned....

I'll try waiting an hour and repeat the adb command....it seems some folks also are running into this problem based on this 30+ pg thread.

Also, sometimes during boot everything is inverted and sometimes its not, weird. I wonder why so many variations of this exists. I imagine there's only one Tmobile L9 phone released in USA....
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
Have you tried fastboot? Reflashing the recovery image of 20f....
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
try watching the video and following this, it worked for me!! no shortcuts have to start all the way from beginning :rolleyes:
[LG Optimus L9 P760, P765, P768, P769] kuma82:
The u-boot can be fixed anytime after unlocking bl, no need to restart recovery.
[LG Optimus L9 P760, P765, P768, P769] elpuertorro:
Yeah but since he also mentioned in a post before that it did not unlock for him, that's why I told him to start over since it worked for me that's why the no short cuts :)
[LG Optimus L9 P760, P765, P768, P769] webdoctors:
The instructions in post #1 didn't work, even after repeating several times and waiting hours for the boot unlock message to show.

I ended up using elpuertorro 's post above, and after 3 tries it finally worked, repeating the entire process three times.

Needless to say, these methods aren't very straightforward.

My advice is to create 2 threads and sticky them, the first being carlos's method, and have a caveat that if that doesn't work, go to thread #2, which would be elpuertorro 's post above. This will cut down on the confusion and there's several threads, some closed that are out of date.

Also, after the process, I'm running CM 10.1, but the baseband is the European LGP760. Is that normal, or did people load the P769 KDZ file afterwards?

Carlo's youtube video should also be stickied....
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Elpuertorro's way of unlocking is the original way. Lol

But yeah a sticky is needed, to many are just jumping straight in and getting stuck.

CM 10.1 P769
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
Looks like i saved a copy of this guide 2 months ago... Hooray! :) (Thanks to me)

Some people may need this since they have slow internet(like me) and have to wait for the video to load..

There were some adjustments though... Like enabling "show touches", and "cwm touch fix". So you can add that.

Here you go:
[LG Optimus L9 P760, P765, P768, P769] rotatorkuf:
so i've been able to﻿ do everything up to where the bin file needs to be copied, followed your (carlos' video) directions to a t, using windows 7 64 bit, lg optimus l9 76920f....whenever the upgrade app reaches 5% it crashes [while my phone remains at "S/W upgrade" status], never actually starts dropping any bin files into the /phone folder...any idea what gives??
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Sharing flash-able recoveries

Hey I made some easy flash-able zips to check out CWM or TWRP.

Just install/flash the recovery you want inside your current recovery. Once flashed, select reboot recovery, to check it out.

This is real useful if you want to restore someones (or your) CWM or TWRP backup, just flash the correct recovery and restore the backup.

NOTE: For Unlocked Bootloaders on P769 or LGMS769

Thanks to Lelus for porting these recoveries to our device :good:

Hopefully these files make it into the OP