*#*#4636#*#*
Display cell phone, battery, usage statistics and WiFi information
*#*#7780#*#*
Restore to factory settings, do not delete preinstalled apps and SD card files
*2767*3855#
Restore to factory settings; delete all files in SD card
*#*#197328640#*#*
Launch service mode to test and change certain settings
*#*#232339#*#* or *#*#526#*#* or *#*#528#*#*
Test WiFi
*#*#232338#*#*
Display WiFi MAC address
*#*#1472365#*#*
GPS test
*#*#1575#*#*
Other GPS test
*#*#232331#*#*
Bluetooth test
*#*#232337#*#
Display Bluetooth physic address
*#*#8255#*#*
Start Gtalk monitoring
*#*#4986*2650468#*#*
PDA, Phone, H/W, RFCallDate
*#*#1234#*#*
PDA and Phone
*#*#1111#*#*
FTA SW version
*#*#2222#*#*
FTA HW version
*#*#44336#*#*
PDA, Phone, csc, build Time, anzhi.name, changelist number
*#*#0283#*#*
Packet Loopback
*#*#0*#*#*
LCD test
*#*#0673#*#* or *#*#0289#*#*
Melody test
*#*#0842#*#*
Device test such as viberation and lightness
*#*#2663#*#*
Display touchscreen version
*#*#2664#*#*
Touchscreen test
*#*#0588#*#*
Distance sensor test
*#*#3264#*#*
Display memory version
NOTE-ALL R CODES GAINED FROM NET ,USE IT OWN RISK
