Flash Wkpark Bootloader 1.25a
Here is A Simple Tool To Flash WkparkBoot Loader 1.25a
http://d-h.st/jLz
Did you Install LG And Omap Drives?? if yes
Open Device Manger and Run simple tool and do all steps and see it well show you A drive if it show you install and Use usb_drv_windows in Simple tool folder (Taken from OptimusR instructions)
Follow the steps in flashing the Wkpark Bootloader 1.25a (right after you press #1 then within 5 seconds connect the battery...it will pop up a message ...WAITING FOR DEVICE (if assuming you dont have the Omap drivers installed) then open the device manager look for and catch the OMAP4400 blinking in the devices menu..right-clik and install the driver located inside the simple folder usb_drv_windows this is the driver
omap_winusb.inf then when it finish installing the simple tool will resume with messages that it finished installing the Wkpark Bootloader 1.25a. Go to recovery and flash the Zip.