Below are the shortcut keys and hidden secrets of Android smartphones and Tablets. *#06# – IMEI Number *#0*# – Enter the service menu on newer phones smartphones *#*#4636#*#* – Phone information, usage statistics and battery *#*#34971539#*#* – Camera information *#*#273282*255*663282*#*#* – Full backup of media files *#*#197328640#*#* – Enable the test mode for service *#*#232339#*#* […]