I purchased a new EVO 4g from Ebay and called Sprint to activate it. The guy told me it was good to go, but when I tried calling out it didn't work. So, I got tech support on it and they couldn't fix it. I looked in About Phone and found that there is someone else's number in there and their user name as well. Does anyone know how to get this information out and put my information in, so the phone will work?