[LG Nitro HD] hereric:
EDIT: I no longer support this guide, as I've not owned a nitro for at least 2 years now. It is all still accurate however, just make sure to follow the steps.

The package is hosted on my google drive, and I have no plans to remove it, so if this thread is still up, so are the files.

Good luck!

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This guide will work for P930, P935, and P936 users.

I have merely put all the pieces together to have a concise all-in-one solution for rooting/unbricking the LGE-IPROJ. Credit is given to original contributors at the bottom of the guide.

As always, I am not responsible for any damage done to your phone by following this guide. Follow at your own risk.

I strongly suggest removing your SDCARD from the phone until step 18 since it causes the phone to boot slower and makes this process take longer.

Ensure that you have the LG USB drivers installed on your computer. If you don't they can be downloaded Here.

Foreword - This guide allows the phone to keep its correct build ID, so it hasn't got leftover data from the SU640 kdz which is flashed using the other method. We flash the experimental ICS build, root it, run keeproot, flash the p936 kdz, then run keeproot to restore root access. We then install CWM, and then we can flash ROMs to our heart's desire.

The reason we have to flash the p936 KDZ is that it overwrites the v18f secure bootloader, allowing us to flash CWM and not brick the phone.

1 - Download this package

2 - Backup your phone if you want.

3 - Extract the Unbrick Package

4 - Place phone in Download Mode (Turn off phone, then hold volume up while plugging in USB cable)

5 - Run the file - P930_UDT_v18f_04112012

6 - Set your phone to allow installation from unknown sources, and enable USB debugging.

7 - Run TPSparkyRoot.bat, following the instructions in the window.

8 - Perform a factory reset of the phone. This is done by shutting off the phone, then holding VOL DOWN + Power until the phone says FACTORY HARD RESET, then following the prompt (pressing power twice)

9 - Allow USB Debugging on the phone.

10 - Run Before.bat contained in the KeepRoot folder.

11 - In the KDZ tools folder, install msxml and run B2CAppSetup (Close the application after it has installed)

12 - Run Windows Enabler as Administrator, and press the icon in the system tray to activate it. (Windows enabler allows you to click on grayed out options to unlock them in programs. You can then set the option as you normally would.)

13 - Place the phone in Download Mode (Turn off phone, then hold volume up while plugging in USB cable)

14 - Run KDZ_FW_UPD.exe. You need to set Type to 3GQCT, PhoneMode to CS_EMERGENCY, and point the KDZ file field to V10F_00.kdz

(SOME PEOPLE HAVE REPORTED HAVING TO PRESS "Read Phone Info" FOR THIS STEP TO WORK!)

Once these settings are enabled, hit the "Launch Software Update" button.

15 - After the update has run, the phone should bootloop on the second logo screen. While it does this, run AfterROOT.bat from the KeepRoot folder.

16 - Perform factory reset. This is done by pulling the battery, then holding VOL DOWN + Power until the phone says FACTORY HARD RESET, then following the prompt (pressing power twice)

17 - Set phone's language to english, then enable usb debugging.

NOTE: The following steps are optional. Downloading Rom Manager from the Play Store and installing CWM from there will do the same thing.

18 - Place the recovery.img file in the root directory of your phone's SD card

19 - Open cmd in KeepRoot\adb

20 - Run the following commands, while the phone is plugged in and has USB Debugging enabled

21 - Accessing CWM - This is done by shutting off the phone, then holding VOL DOWN + Power until the phone says FACTORY HARD RESET, then following the prompt (pressing power twice)

Congratulations. Your phone now has CWM 6.0.1.5 installed, and you can flash any of the CWM flashable zips available for the P930 on XDA.

Edited: Added images, included more information, took corrections from posters.