*#* #4636# *# * phone information
*2767* 3855# hard reset*
*#* #7780# *# * factory reset**
*#* #7594# *# * change end call/ power option
*#* #197328640 #*# * service mode
*#* #273283 *255* 663282* #*# * file copy screen (backup media files)
*#* #526 #*# * wlan test
*#* #232338 #*# * shows wifi mac address
*#* #1472365# *# * gps test
*#* #1575# *# * another gps test
*#* #232331 #*# * bluetooth test
*#* #232337 #*# shows bluetooth device address
*#* #8255# *# * gtalk service monitor
