Android Secret Codes

1.) *#*#4636#*#*
      Cell Battery, WiFi Usage ,Phone Information

2.) *#*#3264#*#*
      Display memory version

3.) *#*#7780#*#*
      Restore Factory Settings

4.) *2767*3855#
      Format Phone

5.) *#*#197328640#*#*
      Launch service mode

6.) *#*#232339#*#*
      Test WiFi

7.) *#*#232338#*#*
      Display WiFi MAC address

8.) *#*#8255#*#*
      Start Gtalk monitoring

9.) *#*#1472365#*#*
     GPS test

10.) *#*#1575#*#*
       Other GPS test

11.) *#*#232331#*#*
       Bluetooth test

Enjoy :)