Help Need Help IN Updating

[kashifahmed]

i Want to ask that ive downloaded the 2.3 gb update for my galaxy sl and i fear of losing all data is there any way to get back the apps after updating i have 750 mb of apps and im new to this please please please i ask that to tell a simple way and the steps i wil be very very thankful to you
please help

 

[Rush]

The update will in no way affect anything on your device...including data.