Android secret & short codes

To check General information of mobile like phone version check battery and other(memory) info USE
*#*#4636#*#*

To reset factory settings data like google account cookies system application to default settings USE
*#*#7780#*#* Phone should be restarted

To cancel this operation USE
*2767*3855#

To make android call end button as switch off button USE
*#*#7594#*#*






To get Camera firmware information like version quality and file size USE
*#*#34971539#*#*

To make service mode in android mobiles like test mobile USE
*#*#197328640#*#*

Make video image sound an media file back up to memory card USE
*#*#273283*255*663282*#*#*

To open automatically gtalk application
*#*#8255#*#*

to check address and status of WLAN, GPS and Bluetooth Test Codes:

*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#* – WLAN test signal check and ip address
*#*#232338#*#* – WiFi MAC address display
*#*#1472365#*#* – GPS test screen
*#*#232331#*#* – Bluetooth test
*#*#232337#*# – Shows Bluetooth device address

To get firmware application status and version USE
*#*#4986*2650468#*#* – PDA, Phone, H/W, RFCallDate
*#*#1234#*#* – PDA and Phone
*#*#1111#*#* – FTA SW Version
*#*#2222#*#* – FTA HW Version
*#*#0283#*#* – Packet Loopback
*#*#0*#*#* – LCD test
*#*#0673#*#* OR *#*#0289#*#* – Melody test
*#*#44336#*#* – PDA, Phone, CSC test, Build Time, Change-list number
*#*#0842#*#* – Device test (Vibration test and BackLight test)
*#*#2663#*#* – Touch screen version
*#*#2664#*#* – Touch screen test
*#*#0588#*#* – Proximity sensor test
*#*#3264#*#* – RAM version

LCD test USE - *#0*#
Melody test USE - *#0673# OR *#0289#
Vibration test USE - *#0842#
TM Command - *#2663# OR *#2664#

This code works for most version if not comment here with model no.