you just need special things to what other manufacturers simply goes, may also make. Swap battery changing or SD card. For me, the battery replacement became necessary. I have long been an iPhone 4. I am satisfied with. That the battery now only half a day is not enough. Unfortunately, the exchange set included has not specified how a tool for opening the case or these mini Mini Phillips screwdriver included. Only the pure battery. But I prefer the rating from a point.