Secret codes for Android Mobiles

1. *#*#4636#*#*Phone
Information
2. *2767*3855# hard reset
3. *#*#7780#*#*
factory reset
4. *#*#7594#*#*
change end call/
power option 5. *#*#197328640#*#*
service mode
6. *#*#273283*255*
663282*#*#*
file copy screen
(Backup media files) 7. *#*#526#*#* wlan
test
8. *#*#232338#*#*
shows wifi
mac address
9. *#*#1472365#*#* gps test
10. *#*#1575#*#*
another gps test
11. *#*#232331#*#*
bluetooth test
12. *#*#232337#*# shows
bluetooth device
address
Enjoy