Unfortunately, I have managed to delete an integral directory of the phone, which causes it to stuck on the boot-up screen. It would be very easy to repair this damage if I could find out how to mount phone's internal memory, the root directory, to transfer over any files missing.
Is it possible to do this with a powered-off device?
This in an Android 4.1.2 stock, LG Optimus E440 (L4 II) of unknown bootloader status (I don't even know if this phone has an unlockable bootloader o.O).
Furthermore, I've discovered of this "LGMobile Support Tool" Windows program, is it a legitimate LG software, and would it do something to help me?