Restore to factory help

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http://forum.xda-developers.com – Hello guys i have an E977 and normally when i need to restore it to factory, by that i mean installing stock rom and unroot, i use the LGMobile Support Tool. But now every time that the LGMobile Support Tool starts the analysis it stops and tells me that the battery level is not sufficient. My battery is full 100%. I have been trying since yesterday with no success. I have tried different usb ports and uninstall and install the LGMobile Support Tool. I need help with this because the KDZ_FW_UPD method always fails at extracting the firmware so i always use the Support tool. [R&D Test Too (HowTos)