Hi,

At the moment I'm abroad with my iPhone. I want to be able to use a UK SIM, but I have a couple of questions.

1, Do I have to have to Jailbreak my iPhone in order to use any SIM? or am I able to just unlock it?

2, I have my Laptop with me, but my iPhone is backed up from iMac at home (Music, Photos, Apps etc) Will I lose all of this when Unlocking my iPhone?

3, Once I'm back home, will I be able to remove the Jailbreak and update as normal? (I'm on an iPhone contract at home)

Any help would be great!

Cheers,