Did you ever get a Diagram of the positive and negative? I got one of the 5 leg pads was burnt off and the customer needs the information off the phone. Soldering a new charge port will not get the device to charge. So thats out the window. The only option now is to get a already charged battery OR if I could find the positive and negative I could charge the battery externally and get the device to power on to retrieve information. Any help would be greatly appreciated.