yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] bubus44:
Hi, I know How to reattached bootloader?
[LG Optimus L9 P760, P765, P768, P769] cmahendra:
Yes, you loose warranty. This is not Sony, its world famous LG. :D

Are you typing in Hungarian language and using google translate? Either way your English is pretty bad and no one here can understand. :confused:

No need to quote whole OP for your single line query. Why you do that? :eek:silly.

Better send your phone in Service Center and STOP CLUTTERING ALL THREADS. You are doing it everywhere. :mad:
[LG Optimus L9 P760, P765, P768, P769] bubus44:
How can I close back the Optimus L9 bootloader?
[LG Optimus L9 P760, P765, P768, P769] denzel09:
R: [GUIDE] Root jelly bean and Clockworkmod recovery

You can't
[LG Optimus L9 P760, P765, P768, P769] wlado93:
Hi I found on google:

Bootloader is not unlocked by update ? I must did it manualy ? ...how can I check if it's unlocked ? ...is any app ?
[LG Optimus L9 P760, P765, P768, P769] denzel09:
R: [GUIDE] Root jelly bean and Clockworkmod recovery

You must unlock it. It's not unlock by default.
[LG Optimus L9 P760, P765, P768, P769] bubus44:
3845#*760# Bootloader Unlock check
[LG Optimus L9 P760, P765, P768, P769] wlado93:
Thanks, and where I found bootloader status ? In which option ?
[LG Optimus L9 P760, P765, P768, P769] bubus44:
dial 3845#*760# Bootloader Unlock check

http://www.kephost.com/view3.php?filename=a1_2013_3_23_d8a9lilj8n.png

http://www.kephost.com/view3.php?filename=a1_2013_3_23_ycbd6kt34f.png

http://www.kephost.com/view3.php?filename=a1_2013_3_23_3ja1tuji0d.png
[LG Optimus L9 P760, P765, P768, P769] wlado93:
ROOT with locked BL

And if someone make cwm backup from rooted Jelly Bean ? It won't work if I restore that backup to my phone with locked BL and with ICS ? With V10H it works...I had V10A with root and cwm and it works, why not with V20B ? :D

Please make me someone that backup (Europe version) and I'll try it :)

edit:

I found cwm backup which I wanted, and everythink works fine with locked bootloader, I have root permissions, but recovery from artas182x for locked bootloader won't work...any solutions (excep unlocking)
[LG Optimus L9 P760, P765, P768, P769] itoit:
I'm using p765 indonesian, just flashed v20b europe and it works well

While i'm trying to follow the first page tutorial, after i executed the the flash bootloader.bat then my phone restart back to home menu (normal reboot) then after i click executed flash recovery.bat it keeps saying waiting for phone

What went wrong here?

In another thread said that have to use my phone for 30mns first orelese it locked forever and I never wait, does it means my phone locked forever now?

Thx for the help
[LG Optimus L9 P760, P765, P768, P769] markolino631:
R: [GUIDE] Root jelly bean and Clockworkmod recovery

nneed wait 30 minutes

Inviato dal mio LG-P760 con Tapatalk 2
[LG Optimus L9 P760, P765, P768, P769] denzel09:
R: [GUIDE] Root jelly bean and Clockworkmod recovery

You can't i think, at least for now
[LG Optimus L9 P760, P765, P768, P769] itoit:
try this when i'm in idle today at office and it works

now i have unlocked bootloader and rooted JB (4.1.2)

thx markolino631
[LG Optimus L9 P760, P765, P768, P769] bubus44:
Then you should not have to to write the bootloader not be ruled back.

I do not thought I thee, if you who is not prepared.
[LG Optimus L9 P760, P765, P768, P769] denzel09:
R: [GUIDE] Root jelly bean and Clockworkmod recovery

What?:confused: please use a good translator, i don't understand ..
[LG Optimus L9 P760, P765, P768, P769] bubus44:
Not simply doing the bootloader opening,wrote in the describe how to close up but i see this guy markolino631 user need te learn the describe
[LG Optimus L9 P760, P765, P768, P769] vinswong:
Re: [GUIDE] Root jelly bean and Clockworkmod recovery

Same here:(
[LG Optimus L9 P760, P765, P768, P769] markolino631:
try now with easy tool :)
[LG Optimus L9 P760, P765, P768, P769] RobbingHood:
Well, still doesn't work :crying:

Simply reboots, no LG mode.
[LG Optimus L9 P760, P765, P768, P769] markolino631:
you have to wait :)
[LG Optimus L9 P760, P765, P768, P769] er.davinder:
Model: P765

Rom: JB 4.1.2 for Cis country's

When i select 2nd option ie. Unlock the bootloader the phone just reboot normally. it doesn't show fastboot menu. :eek:

does anyone know any workaround for this problem?? :confused:
[LG Optimus L9 P760, P765, P768, P769] markolino631:
R: [GUIDE] Unlock bootloader, flash recovery and root ALL-IN-ONE

you must wait

Inviato dal mio LG-P760 con Tapatalk 2
[LG Optimus L9 P760, P765, P768, P769] vinswong:
Can I use this toolkit in V20B CIS COUNTRIES:confused:

Thanks
[LG Optimus L9 P760, P765, P768, P769] markolino631:
yes you can
[LG Optimus L9 P760, P765, P768, P769] trapistasajt:
hi, i tried installing clockworkmod on my V20C (HUNGARY), but it wasn't successfull for some reasons. I have followed your guide step-by-step, on V20B, it worked fine. I installed the v20c today, and i have unlocked bootloader.

EDIT: I made a hard reset, and now it's working. I don't know what was the problem.:confused:
[LG Optimus L9 P760, P765, P768, P769] monsita:
Everything is OK!

Just would be nice to get a message when CMW is installed !!

(I thought its installation failed, then went on recovery randomly trying to do an hard reset!!)
[LG Optimus L9 P760, P765, P768, P769] artifex21:
My computer won't recognize the phone when in fastboot,so i cant install recovery... Dont know how to solve it, i have the drivers installed -.-
[LG Optimus L9 P760, P765, P768, P769] nikosma:
Try to do this.I solved the problem on windows 8.

Put your phone on fastboot mode and go on :

settings-->control panel-->system and security-->device manager

you will see an unknown device, right click on it and choose to update that driver, that's all,

after update finished you will see ASUS Android Devices and ASUS Android ADB Interface drivers,

that's the missing driver we want to make fastboot mode working to our phones ;)
[LG Optimus L9 P760, P765, P768, P769] artifex21:
I tried that too,the drivers were installed but the computer was still showing that 'one of the usb attached malfunctioned'... I will chill for a while cause it pi**ed me off :mad:
[LG Optimus L9 P760, P765, P768, P769] varun.katoch:
Not working for lg l9 p765 ....phone shuts down on pressing 2 ...or 3

The lg mode is never displayed
[LG Optimus L9 P760, P765, P768, P769] markolino631:
the problem is phone not program :)
[LG Optimus L9 P760, P765, P768, P769] markolino631:
added cwm recovery 6.0.3.1 touch and not-touch
[LG Optimus L9 P760, P765, P768, P769] artifex21:
Finally i was able to install the recovery using my friends computer...But for some reason i couldnt do it with the program you provided.I did it manually through adb.
[LG Optimus L9 P760, P765, P768, P769] cheong12001:
i am currently in V20D Hong kong

but i failed to unlock the bootloader.

is the unlock procedure only restricted to V20B Europe open?
[LG Optimus L9 P760, P765, P768, P769] markolino631:
lg saids that make bootloader unlockable on European version so i don't know if with hong kong version you can unlock it :)
[LG Optimus L9 P760, P765, P768, P769] cheong12001:
i try several times and can't unlock it.

thank you for your reply :)

---------- Post added at 02:43 AM ---------- Previous post was at 02:38 AM ----------

i would like to ask again if i flash europe firmware and unlock the bootloader

will the bootloader relocked or the recovery will gone after i flash back Hong Kong firmware again???
[LG Optimus L9 P760, P765, P768, P769] cgigate:
it is not the phone problem, it is the software.

the L9 is unbrickable
[LG Optimus L9 P760, P765, P768, P769] markolino631:
read ricardo cerquiera posts of l9 :)
[LG Optimus L9 P760, P765, P768, P769] cheong12001:
I try to flash europe 20b and unlock the bootloader, but i still cannot unclock it, when i type adb reboot oem-unclock command, the phone reboot as normal, and no instruction to follow for me to unclock the bootloader, i tried several pc and the situation is the same, i dont know why
[LG Optimus L9 P760, P765, P768, P769] markolino631:
so the problem it's not program :)
[LG Optimus L9 P760, P765, P768, P769] cheong12001:
But i try to install all driver, still not ok. I find a driver omap4430 have some problem, is it related to this?
[LG Optimus L9 P760, P765, P768, P769] rkn989:
Wat was the issue that yu had primarily, bcozz me too havin the same prob. I'm in v20c rom and is not able to flash the recovery :confused:

I've also hard resetted the phn- but didn't wrk :(
[LG Optimus L9 P760, P765, P768, P769] Techgod:
Is it necessary to unlock bootloader to root....i just want root.....no cwm n all.

Sent from my LG-P765
[LG Optimus L9 P760, P765, P768, P769] markolino631:
yes it is
[LG Optimus L9 P760, P765, P768, P769] Techgod:
And above method works on p765 jb 20A right??

Sent from my LG-P765
[LG Optimus L9 P760, P765, P768, P769] Gh0sT.RPG:
If u don't want cwm there s no need to unlock bootloader. If u want just root, use lelus method of rooting.
[LG Optimus L9 P760, P765, P768, P769] Techgod:
Does flashing firmware by KDZ lock the bootloader again??

Or it is unlocked permanently?

Sent from my LG-P765
[LG Optimus L9 P760, P765, P768, P769] Gh0sT.RPG:
Bootloader remains unlocked, doesn't matter which kdz u flash
[LG Optimus L9 P760, P765, P768, P769] quailallstar:
Does this tool work on the T-Mobile USA LG-P769?
[LG Optimus L9 P760, P765, P768, P769] markolino631:
no because recovery is for p760 but you can unlock bootloader
[LG Optimus L9 P760, P765, P768, P769] vekinn:
I have a p769 with the v20d update.

I couldn't run your toolkit because I use Linux and even when I booted onto a spare Windows 8 partition it wanted some dll..

Is it safe to assume that if adb reboot oem-unlock just reboots normally and there is no bootloader unlock check in the hidden menu that this method will not work for me?
[LG Optimus L9 P760, P765, P768, P769] Techgod:
Wanted to root my indian v20A without unlocking bootloader.....:confused::confused:

Sent from my LG-P765
[LG Optimus L9 P760, P765, P768, P769] OperationNT:
Did you try this method ?

http://xdaforums.com/showthread.php?t=2173465
[LG Optimus L9 P760, P765, P768, P769] mderuelle:
So when I keep my phone one for about 45 min all's I get when I do adb reboot oem-unlock all's I get is a normal reboot is there something.g that I am not getting here. And also when I unlock bl and flash back to 10g if I upgrade to 20d will I still have unlocked boot loader
[LG Optimus L9 P760, P765, P768, P769] rbraswell8:
p769 bootloader is not unlockable at this time. you can thank t-mobile for that.
[LG Optimus L9 P760, P765, P768, P769] cgigate:
It has nothing to do with T-Mobile, Lg made it.
[LG Optimus L9 P760, P765, P768, P769] rbraswell8:
yes, but t-mobile requested that the p769 bootloader remain locked
[LG Optimus L9 P760, P765, P768, P769] Lelus:
it might be just that lg/t-mobile don't want touch bootloaders during ota updates , does anyone remember who provided v10g kdz for p769 ?
[LG Optimus L9 P760, P765, P768, P769] rbraswell8:
as in the provider or who posted it first? lg was the provider, and as for the first poster, well, I'd rather not talk about that. That was a bad time for me and it brought no end of problems to lots of people here.
[LG Optimus L9 P760, P765, P768, P769] mderuelle:
Well I flashed the 20b from Europe and kept the phone on for 45 min and tried unlocking with oem unlock and it simply just rebooted so is it till possible to unlock the boot loader with this method or did they completely lock up or bl
[LG Optimus L9 P760, P765, P768, P769] markolino631:
program updates :) if you have any ideas for the program (something to add on it) tell me :)
[LG Optimus L9 P760, P765, P768, P769] tribalartgod:
If I root this phone, will this also remove the SMS limitation? Right now, it's set to 100 per hour. I kill that in 30 minutes, easy. Also, I am seeing a lot of complaints on the P769 after root, so the main question is this... Is it actually worth it? I see development is kinda slow on this phone.

Thanks in advance to whoever replies
[LG Optimus L9 P760, P765, P768, P769] wlado93:
Hi is there any way how to relock bootloader ? Like with SONY phones ?

http://xdaforums.com/showthread.php?t=1134335

and what about this ? http://xdaforums.com/showthread.php?t=2077001

here is write

reflash original ROM (for example V10A) will lock it back or no ?

I want to unlock it, but I want any backup how to lock it back (warranty, I have phone only 5 months and I have 1,5 year warranty yet)

Thanks for reply.
[LG Optimus L9 P760, P765, P768, P769] 991luy:
[Q]

if I already got CWM and Bootlader unlokced...

would the superUser.zip work on LG L7??
[LG Optimus L9 P760, P765, P768, P769] vuongbinhan:
Are there any ways to unlock BL P768 Vietnam? 've tried almost everything but still didn't work t.t
[LG Optimus L9 P760, P765, P768, P769] rena14:
Questions ^_^

Hey bro I have bought an LG L9 and I was seeing your tutorial and looks pretty simple :o

But, as I can see LG Drivers and JB are the only requirements, do I need another thing? Such as fastboot drivers or something?

I already have Android folder with ADB drivers anyway, do I need another thing?

I'm in Win8 64 bits, waiting for answer

P.D.: Good job :highfive::highfive:
[LG Optimus L9 P760, P765, P768, P769] cgigate:
read again tutorial
[LG Optimus L9 P760, P765, P768, P769] jared407:
This is not working for me I have all the drivers installed when I do anything all it does is reboot the device and do not have any confirmation that anything has been done.
[LG Optimus L9 P760, P765, P768, P769] markolino631:
what version do you have? europe?
[LG Optimus L9 P760, P765, P768, P769] jared407:
No American Samsung Galaxy s2 SGH-T989 its bricked right now so going to tmobile later today to get another one. :fingers-crossed:
[LG Optimus L9 P760, P765, P768, P769] markolino631:
what? this toolkit is for LG Optimus L9 not s2
[LG Optimus L9 P760, P765, P768, P769] jyuuken:
hi does this work for LG L9 P768 20a-esa-xxx
[LG Optimus L9 P760, P765, P768, P769] Testman08:
Does this method apply for lg- p769?
[LG Optimus L9 P760, P765, P768, P769] markolino631:
i don't know :) try and report if yes
[LG Optimus L9 P760, P765, P768, P769] rocky922:
Guys why my phone doesn't start in fastboot mode?:( It restart's my phone and that's all.... I've installed fastboot drivers.

I meade it;) I waited 10 hours and charged phone to 100% and it enter to fastboot;)
[LG Optimus L9 P760, P765, P768, P769] chaotic646:
I noticed one of the requirements for this is JB. My P769 came with ICS and when I check for updates it says its already up to date. Any suggestions?
[LG Optimus L9 P760, P765, P768, P769] nh4Rdz:
no
[LG Optimus L9 P760, P765, P768, P769] jerkybeef:
Follow this guide for ICS:

http://xdaforums.com/showthread.php?t=2198114
[LG Optimus L9 P760, P765, P768, P769] mussi96:
there is no method to re lock atm

Even I have unlocked bootloader...

I had some issue with the speaker

I went to service center to fix the issue

those foolish LG guys didn't notice

it and I repaired it for free.. :D
[LG Optimus L9 P760, P765, P768, P769] sai69:
tried it on my p768.. it doesnt work, it cant unlock bootloader, recovery mode is still LG official recovery. T_T
[LG Optimus L9 P760, P765, P768, P769] mussi96:
Does your phone go to fastboot mode after typing "adb reboot oem–unlock".. you have to install fastboot drivers otherwise flashing won't work
[LG Optimus L9 P760, P765, P768, P769] sai69:
^ ah i see, thanks. uhm, where do I type that? I opened the .exe file with the options (numbers) seems it isnt unlocked yet.
[LG Optimus L9 P760, P765, P768, P769] sai69:
okay I jsut rebooted it.. sorry for the false alarm.. whew
[LG Optimus L9 P760, P765, P768, P769] blacknight1114:
Op says to wait one hour for bootloader unlock..at what point? In usb tmobile mode? Or just on home screen normal mode before trying the unlock?
[LG Optimus L9 P760, P765, P768, P769] markolino631:
just on homescreen
[LG Optimus L9 P760, P765, P768, P769] blacknight1114:
Ok thanks. Will try tonight
[LG Optimus L9 P760, P765, P768, P769] jason4962:
Sorry. Does anyone know if this root and unlock bootloader work with tmobile p76910g? Thanks
[LG Optimus L9 P760, P765, P768, P769] mussi96:
Using adb commands
[LG Optimus L9 P760, P765, P768, P769] mussi96:
Does this work for p765 v20a really fed up tried all the methods of rooting but failed I hope this helps.:rolleyes:
[LG Optimus L9 P760, P765, P768, P769] markolino631:
i don't know I've only p760

Inviato dal mio LG-P760 con Tapatalk 2
[LG Optimus L9 P760, P765, P768, P769] Gh0sT.RPG:
Yes this works for p765 v20a. Search in forum ajay was successful in unlocking for our indian firmware.
[LG Optimus L9 P760, P765, P768, P769] blacknight1114:
Doesnt work on 769 20d
[LG Optimus L9 P760, P765, P768, P769] cgigate:
Why not to test? many of us already have unlocked boot loader for p769
[LG Optimus L9 P760, P765, P768, P769] policeman0077:
Does it work for P769 with android 4.1.2 with wind mobile?
[LG Optimus L9 P760, P765, P768, P769] markolino631:
Try

Inviato dal mio LG-P760
[LG Optimus L9 P760, P765, P768, P769] creepinm3:
I am trying to install Rom Toolkit and it give me error... "setup error! -F" how do I fix this? I already did the compatibility and run as admin and nothing worked.
[LG Optimus L9 P760, P765, P768, P769] markolino631:
Re download

Inviato dal mio LG-P760
[LG Optimus L9 P760, P765, P768, P769] creepinm3:
I did that 12 times, same error.
[LG Optimus L9 P760, P765, P768, P769] kimtyson:
Didn't work on P769, rooted with 20F, 4.1.2. Not really surprised but wanted to report it.

It just reboots back to normal. I never get the LG Mode.
[LG Optimus L9 P760, P765, P768, P769] blacknight1114:
+1
[LG Optimus L9 P760, P765, P768, P769] markolino631:
Problem of phone not program

Inviato dal mio LG-P760
[LG Optimus L9 P760, P765, P768, P769] makjack:
I'm using this to unock bootoader on P765, but whenever i give the command to unlock the bootloader in the tookit, the phone just reboots normally. What am i doing wrong?
[LG Optimus L9 P760, P765, P768, P769] Redman78:
Help me please

can someone anyone help me i purchased the optimus lg-p769 on the tmobile network and when i went to activate it it was locked can someone please send me an super simple way to network unlock this phone i really like and want to use it thanks people
[LG Optimus L9 P760, P765, P768, P769] kevev:
Call T-Mobile. They will give you an unlock code. They can walk you through the process.
[LG Optimus L9 P760, P765, P768, P769] tbonezx11:
not working on P769 v20f

Marko,

I'm on a P769 with v20f - locked and unrooted...stock, the JB upgrade was OTA when i got the phone monday as a replacement phone.

I've downloaded the toolkit & followed instructions. When I choose option 3 to unlock bootloader, it simply reboots...doesn't boot into LG software mode for me to choose volume-up option to unlock.

Does the toolkit not support P769 if on JB, or is there something else going on?

Thanks for any help you can provide.
[LG Optimus L9 P760, P765, P768, P769] kimtyson:
Edit: Sorry. I had the wrong thread. Disregard previous comment, if you saw it.

There's a few of us with 769's that report it fails. I agree with Marko, it's the phone, not the tool.
[LG Optimus L9 P760, P765, P768, P769] tbonezx11:
Please clarify your comment: "it's the phone, not the tool." -- It's MY phone, or it's the model? I read on the site it came from that it did support the P769 (http://design-extreme.net/unlock-bootloader-for-lg-optimus-l9-at-official-jelly-bean-firmware/) -- I'm assuming this is the exact same toolkit. I may be mistaken & thought they were original developers of the toolkit...they didn't give credit to marko if he was developer.

If it's the model & the toolkit doesn't support it, Ok, I get that.

If it's MY phone that's not working, I'd like to figure out WHY...or more to the point, HOW to get it to work.
[LG Optimus L9 P760, P765, P768, P769] kimtyson:
Yeah, not YOUR phone, specifically. The tool doesn't work on our P769 model because of the way the phone is set-up. T-Mobile made LG disallow unlocking. That's what it's also very hard to impossible to manually unlock the bootloader, let alone use a simple tool.

My agreement was with post #151.
[LG Optimus L9 P760, P765, P768, P769] tbonezx11:
Gotcha. Thanks for clarification. I'm quite upset with T-MO over this. Not that my HTC Amaze didn't have some challenges, but to replace it with this L9 as a "comparable device" is just silly. between the unlockable bootloader to not having capacity to move apps to SD, it's crazy. The LG is a decent phone, but it's not comparable. I'm going to have to muck through for a bit until Nexus 5 comes out in October/November.

I'll muck with Lelu's method & other suggestions I've been given to get root & CWM, etc. that will solve some of the challenges with this phone.

Thanks for help.
[LG Optimus L9 P760, P765, P768, P769] jared407:
When I click unlock bootloader it just restarts.:(
[LG Optimus L9 P760, P765, P768, P769] canob:
Lg l9 p778g

Hi people,

Does anybody know if this method work to unlock the bootloader of a LG L9 P778G from Argentina with JB 4.1.2?

Thanks in advance.

Regards!
[LG Optimus L9 P760, P765, P768, P769] ShinnRa:
I'm having problem with unlocking the bootloader in my P760. I'm doing everything by the guide: in lg mode i wait 30 mins then run 'adb reboot oem-unlock' phone reboots and then it boot normally and not in the bootloader unlock mode. Help...

Android version: 4.1.2

Kernel: 3.0.31

SW: P76020c-260-06

Baseband: L6260_MODEM_SIC_01.1230.00

Build: JZ054K

=== UPDATE ===

Problem solved after installing OMAP4430 drivers, and flashing to ROM P760C-EUR-XX
[LG Optimus L9 P760, P765, P768, P769] Rock-Ace:
Will this method work for unlocking bootloader of LG G PRO LITE (MTK 6577 device) ? Can you provide some method to unlock LG bootloader for LG G PRO LITE D686???
[LG Optimus L9 P760, P765, P768, P769] johngotty:
v20c

I have p760 v20c end it reboot in normal mode:crying:
[LG Optimus L9 P760, P765, P768, P769] markolino631:
updated tool :)
[LG Optimus L9 P760, P765, P768, P769] jamonazo3000:
this method work in Optimus L5 II for unlock bootloader? :confused::eek::(
[LG Optimus L9 P760, P765, P768, P769] markolino631:
try
[LG Optimus L9 P760, P765, P768, P769] maxolini:
does this p760

work with a p769 ?

both says Optimus L9

and i have a p769
[LG Optimus L9 P760, P765, P768, P769] markolino631:
p760
[LG Optimus L9 P760, P765, P768, P769] nerazull:
I have the same specs as you, already had OMAP4430 drivers installed, flashed that same kdz and, installed ROM Toolkit, ran it, left it like that in the background until I was ready to issue the command, waited like 80 mins with phone connected in LG Software mode and with the Dialpad on screen (I did not issue an active call). I left the phone like that, the screen timed out and I watched a movie on my PC and after it when I issued the command it rebooted normally. Any advice, anyone ?

Some other details:

I had SIM in phone. WiFi was not on, neither was any other Notification Menu function. My device is not rooted, just tried this after the kdz flash. LG Drivers are installed correctly. Win7 64bit.

LE: Earlier I tried unlocking with V20B Europe Open kdz from here (in phone it said P76020b, and the result was the same. With 20b, I waited more than 11 hours with Wi-Fi on, made about 10gb traffic, received phone calls totaling around 4 hours, left it to charge to 100% through USB (LG Software Mode), and when issuing the command, normal reboot. All the drivers were in place.
[LG Optimus L9 P760, P765, P768, P769] markolino631:
hi guys! see first page :)

i maked new program that is more easy that before!