Unfortunately..the author had missed to mention three major steps in the article. Those were
Disabling the LGE Virtal Modem from my pc.(
uninstalling the ms visual c++ redistributable software from computer, which, can interfere in the updating process and detach all other USB devices
enable USB Debugging(Menu/settings/applications/Development/ USB Debugging.
I missed those steps as a result of which I got a flashing error and now my phone does not go past the LG logo. When I turn it on the LG logo appears immediately, then there's a white screen like u get to see when u get a cable connection error on tv , the backlight keys of the 4 hardware buttons below blink 4 times very quickly & the screen turns off. If I connect the phone to a data cable the phone shows that white screen ,goes off 4 two seconds & reshows without turning off (I didn't need to press the power button)
Now I disabled LGE Virtual Modem. Connected phone to my pc through USB
& pressed "Volume up"+"Return" hoping Yellow screen with text emergency mode would appear but nothing happens. The same thing mentioned above appears. Now please tell me what to do !!!!!