If you purchased and got a Samsung Galaxy S II in hand you need this user manual for your device to help you navigate its features and getting to know it with a full access. This user manual is your guide to how properly handle you Samsung Galaxy S II, navigating messages, SMS, calling, email, browsing etc..
This also includes safety tips and troubleshooting instructions.
Here's the Samsung Galaxy S II User manual and quick start guides from the Samsung's website.
Samsung_Galaxy_S_II_GT-I9100_Quick Start Guide & User_Manual.pdf