This Service Manuals guide was also for mobile phones reparation besides schematics, this below is a link DOWNLOAD for service manuals SAMSUNG, another type we will soon post... such as service manuals for NOKIA, MOTOROLA, SIEMENS, and etc. Extract the file to start using...-Samsung service manuals>>>Samsung SGH-A300>>>Samsung SGH-A400>>>Samsung SGH-A500>>>Samsung SGH-A800>>>Samsung SGH-B200>>>