These codes are hidden android codes that can help us in many things, give them a try and see how great they work.
code function of the code
1 *#06# display iemi number
2 *#0*# display service menu
3 *#*#4636#*#* phone information usage statistics and battery information
4 *#*#34971539#*#* detailed information on phone camera
5 *#*#273282*255*663282*#*#* backup of all media files
6 *2767*3855# formats your phone to factory condition
7 *#*#232339#*#* test WiFi connectivity
8 *#*#2664#*#* touch interface information
9 *#872564# usb connectivity information
10 *#301279# high speed data information
11 *#9900# control dump mode
12 *#9090# system diagnostic
13 *#*#197328640#*#* test mode
14 *#*#0842#*#* vibration and back light testing
15 *#*#1111#*#* software version information
16 *#12580*369# hardware and software information
17 *#*#7780#*#* format the data partition
18 *#7465625# phone lock status information
code function of the code
1 *#06# display iemi number
2 *#0*# display service menu
3 *#*#4636#*#* phone information usage statistics and battery information
4 *#*#34971539#*#* detailed information on phone camera
5 *#*#273282*255*663282*#*#* backup of all media files
6 *2767*3855# formats your phone to factory condition
7 *#*#232339#*#* test WiFi connectivity
8 *#*#2664#*#* touch interface information
9 *#872564# usb connectivity information
10 *#301279# high speed data information
11 *#9900# control dump mode
12 *#9090# system diagnostic
13 *#*#197328640#*#* test mode
14 *#*#0842#*#* vibration and back light testing
15 *#*#1111#*#* software version information
16 *#12580*369# hardware and software information
17 *#*#7780#*#* format the data partition
18 *#7465625# phone lock status information