Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 8, 16 or 32 GB capacity / black or white plastic back.
emmanuel, the outside contacts are your positive and negative terminals. you can quickly determine which is what by using a multimeter. Left is positive, right is negative, but it depends on how you look at it:-)