Using Kies to backup your Contacts, Call Logs, Pictures, etc is one of my favorite perks with the SGS2. It is a convenient way for stock and rooted users to backup important data before venturing on to a newer firmware. Initially this mode was very frustrating to me because whenever I plugged my phone into my PC while running Kies a popup would tell me to enter Studio Mode before it would let me manipulate any data. The kicker is that it doesn't tell you how to do it.
- Under Settings, Applications, Development disable USB Debugging.
- Plug your phone into your PC via USB with Kies already running.