Hey all, I just sold an iPhone 4 on eBay. The buyer sent me a message requesting the IMEI# of the phone before I ship it because "I am planning to get it factory unlocked as well by the time USPS delivers the phone." I know you need the IMEI# to unlock, but is there anything else he could do with that number that I should avoid? Or is it okay for me to give him the number? I'm just trying to protect myself from any potential scams, so any help would be really appreciated. Thanks!