Upgrade Galaxy Tab 7.7 T859 to Official Android ICS build UVLH6

How To Upgrade Galaxy Tab 7.7 T859 to official Android 4.0.4 ICS build UVLH6

There are few devices which gets a late official update. And if you are the person who hates waiting and own a T-Mobile Samsung Galaxy Tab 7.7 SGH-T859 and wants to have your hands on official Android 4.0.4 Ice Cream Sandwich firmware then you can always have a another way to update your device...