Hey everyone my screen as mentioned goes white when I have an incoming call (and can't answer) or when I tap the power...

I just removed the logicboard, and battery, gently blew any dust and dirt that was there, and carefully put everything back together. Held down the power button for a few seconds and voila the phone turns on and works perfectly! I'm assuming it took a bounce something popped loose along the way and just needed to be reconnected. markeeinsik i hope your issue is as simple as this.

if the battery is dead, if i were to plug it in to itunes would i even get a response? I'm just wondering if its the dock connector or battery. I've noticed a crack in the back housing (a bit bigger then the normal cracking near the dock connector) so thinking this one took a bit of a bounce at some point. screen isn't cracked.

INCREDIBLE! Steve this probably happens to people all the time. The "very small spring contact that is under the shield and around the 4.8 mm screw" I will elaborate on. It's not so much around the 4.8mm screw as it actually part of the assembly where the 4.8 mm screw is tightened. I added an arrow to this picture to visually illustrate:

http://imageshack.us/photo/my-images/9/i...

I had no wifi at all until this was present. I had overlooked the piece and spent hours trying to figure out where it went. BIG THANK YOU to Steve for his comment. After fixing, my wifi was perfect.