Will unlocking an iphone 4s increase its value?

Or should I restore it? (ATT) 16 gb

Added (1). I'm planning on selling it on ebay. I have two phones, and this one was only used for a couple weeks including earphones, and an otterbox deffender with it

You dam bbet it will!

rule of thumb when selling smartphones… The more you hack it, root it, jailbreak it, unlock it, custom ROM it, and the more accessories you include with it… The more valuable it becomes

see swappa.com for ideas… See what these sellers did to their phones to make them $300+

Yea. Unlocked phones sell for more than locked ones, so unlocking one will increase its value.

Yes it will.

YES it increases the value quite a bit. Selling an unlocked iphone will always net you more money than a locked one.