Managed to kill my iPhone by going through the communication cable. *just about 100% sure this is the cause, but be aware it may not be the case, just buyer beward here*
I'm going to sell the phone in parts - so if you're interested in a part, shoot me a PM with the part and price your prepared to pay. I'll be happy to prove pics.
eBay feedback - http://myworld.ebay.com.au/lieb39/