Putting my old iPhone SIM card into new iPhone?

I have a backup iPhone at home. Thought I lost it, got a new one - it was later returned to me. So I keep it as a backup. My current phone can't charge because I just dropped it in gravy and it *** it up. Can I put this phones SIM card into my other iPhone and have my service transferred or do I have to take it into the store?

You should be able to just pop it in and have service

If it's a 3rd or 1st gen to a 4 or 5 you'll need adapters

4Videosoft iPad Manager Platinum can transfer your contacts from backup iPhone to new iPhone. It's very easy to use. You can find it on the Internet and have a free try. Trust me it's worth trying.

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