The first thing is, I have prepared a pack that includes: LG Flash Tool 1.2 + Crack TI OMAP 4430 OMAP x86 & x64 Drivers Latest LG Driver: LGUnitedMobileDriver_S4981MAN37AP22_ML_WHQL_Ver_3.7.2 omap4boot-for_optimus-v1.21.7z P920 DLL File Download: LG Flash Pack Installing the drivers: Install the LG United Mobile Driver from the pack Install Flashtool 1.2 and apply crack. V21E BIN ROM: FreakShare - Easy One-Click File Hosting or V21E Recovery BIN ROM: BOOTV21E.RAR (BOOTV21E has all necessary partitions to FULLY REPAIR your P920 with V21E ROM files including CWM TOUCH RECOVERY) Install TI OMAP 4430 driver: Remove the SD card and SIM from your phone Remove the battery from your phone Open the device manager and plug the phone to your PC In the device manager, you will see TI OMAP 44330 appearing and disappearing Double click on it when it appears and click update driver The select Scan my computer for drivers Then click on "Let me slect from the device driver list" Ckick next, and now click on "Have disk" Show the driver from the Flash Pack you just have downloaded Install the unsigned driver and you are good to go Run start_fastboot from the omap4boot-for_optimus-v1.11 folder and choose option 2, enter Remove the battery from the phone and start pressing the Vol+ button. Now connect the phone to PC, Omap4boot will flash some files and will wait for 5 seconds for you to plug the battery back: Immediately plug the battery back (better have the phone turned upside down and the battery in the back but not loaded into slot so that you can load it into the slot qucikly) Phone will boot into GREEN SOFTWARE DOWNLOAD mode: Go to device manager, you will see LGE Mobile USB Serial Port: Double click on that and got to the COM Port Settings > Advanced Chnage the port to 41 and click OK: Using the LGFlashTool: Start the tool and select the DLL file from the extracted Flash Pack. For the S/W part, select BOOTV21E_AP.bin which you have downloaded: Click OK, you will be on the main program page as below. Click on the settings button: Now select port 1 and click OK: Now click on the start button and. Flash Tool will be ready for flashing when the the port is available: While the battery is plugged in, press vol+ and connect the USB cable. When you stop pressing the vol+ button, LG flashtool will begin flashing. Perform a factory reset if you get internal memory 0.00B error.