[LG Optimus L9 P760, P765, P768, P769] leolawliet:
I can confirm that my friend's device isn't P769BK or whatever, just P769 like mines except at v20F. It still wouldn't unlock for him but I'm assuming because I didn't start it out from v10G this time. I'll try from that point next time, this device seems easier and easier to crack into the more I try, I can get this all setup and done in such a short amount of time now that everything is understood perfectly and I wouldn't mind giving it another shot if I fail.

I have a hunch that might open up a new posibility, I have no idea if Google Service Framework has anything to do with unlocking since it effects OTA updates, but I thought it might be worth looking into. Next time I attempt to unlock my friend's bootloader I'm gonna clear all of the Google Service Framework data prior to waiting for that half hour to an hour for the unlock.

Still tho, I wanna try going back to ICS and wiping all of the data and starting entirely from scratch. These are the steps I'll follow:

1.) Install v10G from T-Mobile

2.) Factory Reset

3.) Setup WiFi so that it never disconnects on sleep

4.) Disable Lookout Security (it conflicts)

5.) Go to Settings/Developer Options/ and enable Stay awake and USB debugging and Show touches

6.) In USB Connection settings select LG Software Mode (I guess the one that installs LG specific drivers & such, smart move LG building the installer into the device so we don't have to use an installer disk or download drivers)

7.) Prepare Lelus JB Root files (or you can skip this if you use LGPwn which is much easier in my opinion and it ONLY works on JB)

8.) Install a couple of needed apps, you'll run these after you updated to v20B. I leave them on my launcher homepage so I don't have to search in the app drawer later (Busybox/SuperSU/Terminal/LGPwn/L9 Recovery Installer)

9.) Flash v20B (Euro P760) with LG Updater through .kdz flash method, using the Lelus method if you wanna root it at this point

10.) Somehow with the inverted mirrored screen, run LGPwn and root, it should reboot automatically, otherwise try what I did and send an ADB command and see if it asks for superuser rights (still reboot anyway and see if it worked properly)

11.) Install/Update busybox and install bootstrap recovery (I'll try without the recovery first time to see if WiFi does the trick, I won't flash the radio)

12.) (If you feel like using the radio instead of WiFi) Install radio.zip through CWM recovery, then reboot.

13.) Plug your device to a charger or even your PC//Linux, now test your device's wireless connection first before anything whether it's WiFi or radio. Open your browser and try to browse a page, it should initialize a connection. (Why do I have a feeling this is what I missed) and let it sit for about an hour, make sure you've placed it in an area with a good connection.

14.) After you've waited long enough, run the unlock command from ADB shell or Terminal Emulator (if you feel like you're able to type it all with that inverted screen of yours, like me, you might use the terminal for the hell of it but I took a gamble lol)

15.) If you booted into a black screen with inverted white letters on the top right corner, then congrats your patience and efforts have finally paid off! This is what should be happening because now you're one step away, just press volume up and your bootloader is unlocked. You may now use Lelus' toolkit to install a custom recovery while you're still in fastboot, its the safest way to flash it.

Edit: I have this really odd feeling that you guys haven't unlocked you devices because you haven't tried this:

13.) Plug your device to a charger or even your PC//Linux, now test your device's wireless connection first before anything whether it's WiFi or radio. Open your browser and try to browse a page, it should initialize a connection. (Why do I have a feeling this is what I missed) and let it sit for about an hour, make sure you've placed it in an area with a good connection.

Now that I think about it, I don't remember anyone mentioning that they've tried this lately, this is one of the steps I was given upon first trying to unlock my bootloader, maybe you guys need to browse a page to initialize a web connection.