I need to restore my Iphone, however, I've been traveling for 2 years and plan on staying another year. I don't have access to my computer at home. If I install Itunes on my laptop here and login to my Itunes account, and back up my mobile phone can I restore it without losing anything? Also can I activate it again (after restoring it) here in Singapore using my active Swiss SimCard?
What is the best method for doing this given I don't want to lose any information?