*2767*3855# : Reset your phone
*#0228# : Information about the battery
*#9900# : Remove temporary files
*#0808# : (Usb) change settings
*369*#12580# : Information about hardware
*#1111# : service mode
*#0*# : Set of tests to phone
*#2663# : Firmware version and update
*#34971539# : Camera settings
*#0011# : Information about GSM
Tags
Android