Android cell phone hidden secret codes

These codes vary, depend on different cell phones, some secret codes may not be available. Please be cautious before try these codes on you cell phone, and you are responsible for any consequences of you actions.

*#*#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

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