yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
I started monday, never have a phone, don't know how to put USB in LG recovery, been reading everything that I see in front of me, i love theses things, thinking in work with it :)

I will tell what I do to Flash, Unlock bootloader and install CWM.

[How I flash and bootloader unlocked P768]

1.) Also, for anyone who want to know, this tutorial work's perfectly on P678 without mirror or wonky touch screen.

2.) to install CWM recovery (The last and best version way found to install for newbies)

Use this tutorial : http://xdaforums.com/showthread.php?t=2313794

In topic: Installing CWM Recovery with Fastboot

He is also incomplete, I'll tell why:

In this part: Step 1. Extract fastboot.zip and install fastboot drivers by following README instructions.

The README don't tell thata you need to install 2 driver's for fastboot work, only says to REPEAT and it's kind confusing.

Do all that the readme in the fastboot says and you will install OMAP4430 usb drive. That's what README tell's you, also to repeat (don't need), the new part is: When you run the start.bat and press 1, follow steps on pc scren (Plug USB and wait 4 seac. and put battery) your phone will go to black screen, now go to device manager and you will see another driver to install, now with the android name, install using the same step as driver OMAP.

You can tell that readme says this, but also says just to repeat step's and it's too much confusing.

Now when you use the "fastboot devices" in cmd prompt it will see your phone.

If anyone is having problem's with it, PM me :)

Whatsapp contact: +5511959946864
[LG Optimus L9 P760, P765, P768, P769] RavenII:
Found my answer...
[LG Optimus L9 P760, P765, P768, P769] bmgreatness:
How did you fix the schedule maintenance error?
[LG Optimus L9 P760, P765, P768, P769] kevev:
Try moving the folders directly under the C: drive and run from there. That is what fixed it for me. Also run the BTCAppSetup.exe from this location first.
[LG Optimus L9 P760, P765, P768, P769] fredo5580:
If you get to fastboot screen, i believe its unlocked...when your phone boots up is lg logo married? Can you flash anything in fastboot? Have you installed omap4 drivers? It sounds ( and i could be dead wrong about this) like the bootloader was unlocked, but ( probably for sale preparation) had the original uboot and xloader may have been flashed after in order to fix mirrored boot screen. In theory this would cause bootloader to be "locked". Try flashing uboot and xloader from p760 thru fastboot. When in Sw Upgrade mode youshould be mirrord and it should say nootloader unlocked on top. If while on v20b open Europe ,if your boot screen isnt mirrored then your xloader and uboot havent been flashed right..which happened to me when i flashd og uboot and.xloader to fix mirrored boot...getto v20b...make sure lg logo is mirrored amd wait at least an hour to try reboot oem-unlock....when trying.this, make sure device shows up in adb devices first..

---------- Post added at 04:00 PM ---------- Previous post was at 03:56 PM ----------

I thought i heard p760 roms work on p768,,..i couldbe wrong, can anyone verify this?
[LG Optimus L9 P760, P765, P768, P769] shucrut:
Yes, they work nicely. No wonky screen or anything. The only issue is the camera, video playback and talk force closing.
[LG Optimus L9 P760, P765, P768, P769] eSZee:
Sadly this guide did not work for me.

Appreciate all the work all you fine folks are doing but I guess it just wasn't meant to be.
[LG Optimus L9 P760, P765, P768, P769] KindleUser:
I feel you man, every guide I've tried doesn't work for me, but I'm sure the dev's on this forum section will come out with an easier way to unlock the bootloader sooner of later. :)
[LG Optimus L9 P760, P765, P768, P769] Cyanoshake:
I tried the guide. 30 minutes, 1 hours, 1 and a half and i still keep on getting rebooted straight into the system when trying to oem unlock. Is there something i'm doing wrong?
[LG Optimus L9 P760, P765, P768, P769] AntonX:
I have a thought for those who cannot unlock bootloader even if they seemingly do everything right. It's quite possible the unlocking logic checks the SIM status.

Are you SIM-unlocked?

If not spend $2 on eBay, unlock SIM, and then try again.
[LG Optimus L9 P760, P765, P768, P769] KindleUser:
Hmm, that's an idea. But who know's.
[LG Optimus L9 P760, P765, P768, P769] mrmathematica:
I'm still SIM-locked, with T-mobile SIM and now unlocked the bootloader.

If it matters, I'm sure during my wait time I didn't use data from T-mobile but WIFI (I'm on prepaid plan with no data). So neither SIM lock or data from service provider in principle should keep you from unlocking bootloader.
[LG Optimus L9 P760, P765, P768, P769] Cyanoshake:
I seems dependant on the phone. I did everything. I installed the European kdz and was on WiFi. I tried an hour and a half and still nothing.
[LG Optimus L9 P760, P765, P768, P769] DjSidEShoW:
Worked for me!!!! Thanks
[LG Optimus L9 P760, P765, P768, P769] rotatorkuf:
what gives with this piece of **** phone!

haha

i did everything up til adb reboot oem-unlock

AND NOTHING, just reboots back to mirrored v20b image

using p769 20f, has anyone really had success with this?

i'm about to go throw this phone at someone's head
[LG Optimus L9 P760, P765, P768, P769] mven45:
I've tried everything at least once with the P769 as well with no success. I'm thinking its a hardware dependency as Ive tried six different .kdz's which were reported to be unlockable.:crying:
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
Ok..i started off on 21d wind mobile jb

Flashed to tmobile 10g(great signal and data but had to reset my apns)

Flashed to europe open(no signal no data my apns were.there..wonky touchscreen inverted)

Prepared for it before flashing.however..set show touches..debug mode etc in 10g before.flashing..setting.stuck after flashing to europe open

Got angry cause i had no signal to unlock bl..no wifi atm either

Flashed radio.zip from noobs guide version as he did in the video to regain signal after flash( i used flashgordon )

Still no signal radio or data connection after flashing his radio.as.he.did.in his video.from his putinsdcard folder

Is there a certain radio.zip i need to flash for europe open so i can have signal? Im wind mobile canada

Tmobile kdz all give me great signal

Also is it good.to have wifi and data on for the waiting period or just wifi or just 4g3g etc? Any recommendations?

The.most frusterating.part of this for me so far has been flashing.back to 10g because.it.clears debug amd show touches etc.that and how i couldnt get 20b to reboot into.artas cwm recovery after root and.install..seems on 10g i needed busybox and busybox installer to.boot in cwm..on europe open i couldnt download /upgrade the the busybox installer..cause no signal...so basically right now the radio signal and data connection are my priority on europe.open atm

Any suggestions or help?
[LG Optimus L9 P760, P765, P768, P769] maso321:
hi there guys i have gotten my phone almost back to stock .. i cant seem to get my touch screen to work correctly i click icons and picks something else top have the screen almost works as normal no mirrored but i guess maybe inverted can someone please help
[LG Optimus L9 P760, P765, P768, P769] will0899:
Root, install cwm, flash the touchscreen fix zip.
[LG Optimus L9 P760, P765, P768, P769] Ntrasme:
Problems with CWM and this method.

I tried this method with wifi enabled and waited for a day but after sending the adb oem-reboot command, it reboots normally. Even if I try Machine-Gunning the Up-key.

I have also had problems with CWM, after installing it and rebooting I got a white screen that said "Encrypting" and an option to reset device, which just rebooted the device. I had to re-flash KDZ. Does anyone know what can be causing these problems? I am rooted using this guide:http://xdaforums.com/showthread.php?t=2439667. I installed BusyBox X and installed BusyBox, but after running LG recovery Installer and rebooting I always get the white "Encrypting" Screen.
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
Try enabling allow mock locations in dev settings..and make sure the phone screen doesn't time out or turn off (display settings)at all during the waiting period...i left wifi/data on entire time.I did that and it worked first attempt after 1 hour wait. I also left the phone plugged into the PC entire time.
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
Allow mock locations? Really? I'm tempted to try this. How did you know to do that?
[LG Optimus L9 P760, P765, P768, P769] EpicLordPhone:
Please try and let me know if it works, I would but I'm not around a computer and won't be for a few days!
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
I dunno if it will work for u.lol...its just what I did..I also disabled screen timeout left it plugged in with adb open and command ready
[LG Optimus L9 P760, P765, P768, P769] EpicLordPhone:
Haha as soon as I can get to my laptop I will try it and I hope it works! I'm getting tired of stock, I'm waiting patiently to try miui v5
[LG Optimus L9 P760, P765, P768, P769] Gryff302:
I definitely would like to know if this method works. I have tried everything and have gotten frustrated with it.
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
OK. I'll try this tonight and post everything that I do step by step.

---------- Post added at 12:58 PM ---------- Previous post was at 12:52 PM ----------

Should I use some of the steps found here? http://xdaforums.com/showthread.php?t=2500269
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
Okay. I just flashed 10G and did the hard reset. Now, I'm going to enable usb debugging and mock locations. Then, root and install L9Recovery v1.3.

---------- Post added at 07:12 PM ---------- Previous post was at 06:33 PM ----------

Just finished flashing euro 20b and enabled usb debugging AND mock locations. Now I'm waiting the 30 minutes.
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
I don't think it will make a difference just found out what mock locations was and basically shouldn't do a thing to help u ul the boot loader.I don't know why so many people have troubles..did u leave phone screen on entire time? Have a good radio and WiFi signal?
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
No luck. And I'm about to smash this phone to pieces but I can't. I don't have anything else until my dad gives me his Optimus F6. One question. Did you have ICS out of the box? I think LG disabled access to the bootloader after the JB update. Users that got this phone with JB out of the box have access removed by default....at least that's what my older brother is telling me.
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
Lady are u willing to buy my lg l9 unlocked running PAC cm 10.2? Lol give me an offer don't obsesess about it as I did...get a new device..I know where your coming from I spent 5 days tryin to ul this sucker...a d I pretty lost my kind.. Chill out have a beer or doob and make plans for a new device that is unlocked or u can unlock..:)
[LG Optimus L9 P760, P765, P768, P769] afr33sl4ve:
I'm gonna give this a shot. I was on ICS, then updated to JB OTA.

My wife and I are terribly frustrated that we got suckered into this phone (769).

If unlocking the bootloader works, I'm gonna be very happy. If not, well... It's life may be very limited and I'll send it to LG's headquarters.
[LG Optimus L9 P760, P765, P768, P769] matthewstice:
Jb out of the box
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Sorry for necroposting, but this was the only thread that I could find regarding this...

My phone, the P769, came with ICS out of the box, but with an OTA to JB. Which means that, hopefully, unlocking the bootloader is as simple as fastboot commands?

Only problem is, I installed the CWM touch recovery for the P760, and now my phone won't boot... whoops!
[LG Optimus L9 P760, P765, P768, P769] emepher:
I'm sorry for "necroposting" (lol) too, but wow, this phone is so frustrating. Seemed like a great piece of hardware and a fantastic value, but I could not get it unlocked and there is not a ton of development for it, unfortunately. After trying everything (including trying to get my hands on a P760 - bought two, I thought, but was sent a P769 both times and returned them), I gave up. I tried EVERYTHING.

Just sold the P769 on eBay, threw in an extra $20 above what I got for it, and bought a mint LG Optimus G e970 on eBay. Already have a custom KitKat ROM on it. This course of action may sadly be the best for anyone who has a nice P769 and hates the stock bloatware. Unlocking the bootloader on the OG couldn't have been easier, and I even got it carrier unlocked for about $4. I can't believe I gave LG a fourth try after the P769, the G2x P999 (stuck on Gingerbread), and my last dumbphone (forget what it was called - had a ton of shortcomings though), but the OG is definitely worth considering. I always wanted a Nexus 4 but was put off by the lack of a microSD slot, and the e970 OG is basically a Nexus 4 with microSD and LTE out of the box.
[LG Optimus L9 P760, P765, P768, P769] boo_radley:
Curiosity Makes Me Stronger

Has anyone tried this recently with success?
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Nice, if I hadn't gotten this phone on a tab (why do I keep doing that) I would consider doing that. As it is I'm stuck on stock until someone finally figures this thing out. All I know is, I'm not flashing another European ROM unless I am certain it will work. I'm not dealing with that crap again.

---------- Post added at 02:19 PM ---------- Previous post was at 02:18 PM ----------

Nope, sorry. Once I got my phone back into a working state, I gave up. I'll probably just root it again and that's about it.
[LG Optimus L9 P760, P765, P768, P769] roamingrican:
I Have. I revised the Guide accordingly: http://xdaforums.com/showthread.php?t=2584997
[LG Optimus L9 P760, P765, P768, P769] porkandbeans:
Cant find 10g KDZ

I can't find a downloadable 10g KDZ for the Tmobile 769. Can anyone add to dropbox so that I can flash. I am currently on the 20h. Thanks.
[LG Optimus L9 P760, P765, P768, P769] roamingrican:
https://mega.co.nz/#!dRUTkICD!BncpLz1wK9Wm2feeV4-9iSMaeOIpmdIsjIFhkjs5PYg

Here you go. I also added it to the guide.
[LG Optimus L9 P760, P765, P768, P769] porkandbeans:
Thanks! Will attempt to unlock and report back! My numbers under my battery are 2013-04-29
[LG Optimus L9 P760, P765, P768, P769] pyrophreak:
What about V20H?

I've used xda several times to root other devices, but I've never registered an account before now. I've been trying to unlock the bootloader on my P769, but I've been unable to do so with any tutorial I've found. I'm running the V20H .kdz, so is that a problem? This tutorial is for flashing from 10G, so should I flash 10G before beginning the tutorial?
[LG Optimus L9 P760, P765, P768, P769] pyrophreak:
Not booting into fastboot

I'm not sure what's going on. I followed the tutorial exactly (even flashed 10G then to 20B) when I ran 'adb reboot oem-unlock' the phone rebooted, but not into fastboot mode; instead, it booted like normal. Not sure if I've done something wrong or what. I went through the process at least 3 times to make sure I didn't miss anything, but I keep getting the same results. Does anyone have any ideas as to what might be going wrong? Any help is appreciated.
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
The thing going wrong here is LG...lol. Joking. It's happening to a lot of us here. I'm leaning to the belief that the 20b kdz isn't getting flashed properly when using the offline method.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
I really would like to ditch the stock firmware and try out CM on here, maybe get a kernel for better battery life, but I'm not willing to go through days of not having a working phone just to give up in frustration again.

Perhaps someone with a backup phone could take a stab (or a few stabs) at it, see if they can figure it out, and document every step they make along the way? That way we can try to replicate their success, instead of trying to follow various guides that all seem to say the same thing, but have little niggles that you can get hooked on.
[LG Optimus L9 P760, P765, P768, P769] aistiss4:
still got normal reboot ;(
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Yep, honestly that's to be expected. It seems to be the rule here, and those that can unlock are the exception.
[LG Optimus L9 P760, P765, P768, P769] wasiq224:
Pleeeeeaaaasse help!!!!!!!

"Updating is not possible any longer due to a fatal error while the LG Mobile Phone Software Update" when trying to reflash 10g
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Lelus:

How about flashing 20B and then fastboot flash the x-loader and u-boot, then fixing touchscreen? hmm.. but we need root to fix touchscreen.
[LG Optimus L9 P760, P765, P768, P769] Lelus:
I'd start with dumping boot.img from v20 and repacking it with p769 kernel

I guess ramdisk can be modified to push touch firmware as well
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Goodluck.. let us know how it goes :) I believe you need to use the boot.img recovery.img from 10G to avoid security errors.
[LG Optimus L9 P760, P765, P768, P769] Lelus:
I'm gonna take a break from experimenting until I can figure out why fastboot doesn't work on my phone.
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
I just flashed PACMAN CWM ROM (the latest) in our phone and it boots after doing a factory reset. Everything is functional even the touchscreen is working fine, only issue is the mirrored screen, if we can figure out why our 10G, which boots up mirrored and fixes itself when turning off and on the screen and apply it in cyano, then we can have a fully function CWM rom :)
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Anyone here still using 10E? Some people noted that it has an unlocked bootloader. If this is the case, we might be able to use the u-boot of the kdz to fix this :)
[LG Optimus L9 P760, P765, P768, P769] Lelus:
Could you dump your current uboot and upload it here ?
[LG Optimus L9 P760, P765, P768, P769] TFT_xKripple:
Is there a way to downgrade the firmware from 10g back to 10e/a (whichever is T-Mobile for me) and unlock the bootloader there? Or is it not possible on those firmwares either?
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
OK, now I flashed the JB ROM of p760, then went to bootloader and then went to fastboot and flashed the original u-boot.bin. I was able to boot JB and the screen was perfect, then I turned screen off and back on..Whooola.. screen is mirrored. I think it has something to do with the /sys/devices/platform/omapdss/overlay0/screen_width.. in p760 rom, it is set at 0, in our ICS it is set at 544..I could be wrong since I am a newbie :)
[LG Optimus L9 P760, P765, P768, P769] Tablechair:
Hey Lelus, are you trying this method to get into fastboot? http://xdaforums.com/showthread.php?t=2119090
[LG Optimus L9 P760, P765, P768, P769] Lelus:
same uboot on g and e

http://omappedia.org/wiki/Bootargs_for_enabling_display

Yes, I got it to working.
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
so command will be?

echo 544 > /sys/devices/platform/omapdss/overlay0/screen_width

Where do I put it in the ROM?
[LG Optimus L9 P760, P765, P768, P769] Lelus:
I'm not sure about jb file structure right now, do you have any init. files in /system/etc/ ?
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Didn't work in init.d file still says 0 :(
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
OK, I think I have an idea to get cm 10.1 to work in our p769. I'll let you know how it goes :)
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Update:

I have been trying to build a kernel for the latest CM10, but unfortunately it doesn't boot in our device. I have sent a few PM's asking for the developers for the .config since the cyano defconfig for p760 is not updated to the latest kernel (which could be or could be not the case of not booting), but I have yet to get the .config. When I try to build the kernel with that defconfig, it has some new stuff in the kernel that I have to answer "N" but not sure if I should. I do hope on their next release, they enable .config support in the kernel so we can have /proc/config.gz in the ROM.

I believe the key is in the kernel, basically the panel that our device uses is different from the p760 or p765. If we get this fixed in the kernel side, then I believe we can have CM10.1 in our p769 :) For now, I am unable to do anything till I receive the .config file.
[LG Optimus L9 P760, P765, P768, P769] Lelus:
Which kernel are you building ?

I'm trying to build cm10.1 with stock isc kernel, should be done soon.

Update : Recovery works
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
I'm using the cm10.1 kernel from source.. Let us know how it goes :) Hope screen orientation would be fixed :)
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
Did it boot?
[LG Optimus L9 P760, P765, P768, P769] Lelus:
Yes recovery works fine and screen orientation is ok but cm10 build won't install for unknown reason.

Btw kernel from cm10.1 wont work, you'll have to you what lg provided
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
UPDATE!!!!!!!!!!!!!

FINALLY GOT CM 10.1 Working on our p769 :) So far, only brightness is not working, but I'll work on it soon. I'll upload the file. Remember, you need to go through the process before installing CM 10.1
[LG Optimus L9 P760, P765, P768, P769] mrmathematica:
you are my hero! i think you can wrap it up as your own rom.
[LG Optimus L9 P760, P765, P768, P769] pinoyto:
I'm not sure how to do it but here are the issues so far..

1. After deleting data and factory reset, first reboot you will be greeted by black screen...Just fully turn off power and reboot...then you will be greeted by mirrored screen, just turn off screen and back on and it will be fixed.

2. Brightness is not controlled (I need to look into something there)

3. Camera is inverted (not sure why)

4. Axis is inverted

5. Maybe more issues.

Here is the link..

Sorry wrong first link...

Here is the one.

https://www.dropbox.com/s/i1gvydvccmfuev4/cm-10.1-20130328-UNOFFICIAL-p760.zip
[LG Optimus L9 P760, P765, P768, P769] mike6696:
So i need to unlock my bootloader for this to work?
[LG Optimus L9 P760, P765, P768, P769] rkaede:
does that mean need to go the whole mirroring issue thing? if the official jb is out shud make the process shorter rite?

anyway thx for the effort
[LG Optimus L9 P760, P765, P768, P769] mderuelle:
I figured put how to downgrade from 10g to 10e its pretty easy dont have to flash or anything pm me if you want to no hpw
[LG Optimus L9 P760, P765, P768, P769] mrmathematica:
Just post it here. Make it public. For things like downgrade from 10g to 10e, it's worth a thread in the develop section, which is a honor.
[LG Optimus L9 P760, P765, P768, P769] Lelus:
What kernel/source did you end up using ?