Upgrade Your LG L5 E612 to Android JellyBean 4.1.2

I seldom use the phone software checker (Settings -> About Phone -> Software Update) to see if any firmware update are available from the server. I never thought there would be a major update for this phone. I realized about this update from web news I accidentally  read.
It says that LG L5 got a major firmware update from Ice Cream Sandwich (4.0) to Jelly Bean (4.1.2).

If you want to do this upgrade, prepare the following:
1. LG PC Suite for LG L5 (just google it), update it to the latest version
2. A computer, USB data cable.

then do as follow:
1. Connect your LG L5 E612 phone to your PC/Laptop via USB.
2. if this is the first time you connect your phone, the phone will let you choose USB mode for this connection, choose PC suite mode. Also the PC may install the driver for the phone, it may take a few minutes, or restart the PC/Laptop once.

3. Lauch the PC suite, confirm that the phone is recognized by the suite, select menu, [Mobile Device]-> [Mobile Device software update], it will check the server for update. The jelly bean firmware will be named by V20E_00.kdz. Choose to download the upgrades (it's a big about 700MB file).
4. Do not disconnect you LG during the upgrades. Wait for the download to finish, LG PC suite will change your phone mode to download mode and upload the upgrades to your phone.
5. Once finish uploading, the phone will restart, optimizing application already installed and ...
you have android jelly bean on your phone.
You can now install google now, and say OK google to start search :)