Secret Code for Android based Smart Phone and Tablet

Here I listed out some secret codes for android based smartphone and tablet

Android Secret Codes for Smart Phone and Tablet:

To Restore all your Factory Settings: *#*#7780#*#*
To create Immediate backup for multimedia files: *#*#273282*255*663282*#*#*
To display Phone Info: *#*#4636#*#*
To Know Camera Information: *#*#34971539#*#*
To know about Software & Hardware Information: *#12580*369#
To display/open HSDPA/HSUPA Control Menu: *#301279#
To start GTalk Monitoring: *#*#8255#*#*
To get PDA, Phone, H/W and RF Call Date: *#*#4986*2650468#*#*
Opens Build Time and Change List number: *#*#44336#*#*
Packet Loopback Test: *#*#0283#*#*
LCD Display Test: *#*#0*#*#*
Enter Service Menu (on New Phones): *#0*#
Diagnostic Configuration: *#9090#
USB Logging Control: *#872564#
System Dump Mode: *#9900#
View Phone Lock Status: *#7465625#
Starts Emergency Dial Screen to unlock PUK Code: **05**#
Activates Voice Dialing Logging Mode: *#*#8351#*#*
De-activates Voice Dialing Logging Mode: *#*#8350#*#*
Changes the behavior of Power button: *#*#7594#*#*
To know IMEI Number: *#06# 
To know RAM Memory version: *#*#3264#*#*
To know FTA SW version: *#*#1111#*#*
To know FTA HW version: *#*#2222#*#*
To know Touchscreen version: *#*#2663#*#*
For testing Bluetooth: *#*#232331#*#*
To display/show Bluetooth Physic Address: #*#232337#*#
For testing secret GPS: *#*#1472365#*#*
For testing other GPS: *#*#1575#*#*
For testing WiFi/Wireless LAN of phone: *#*#232339#*#* or *#*#528#*#* or *#*#526#*#*
To display/show Wi-Fi MAC Address: *#*#232338#*#*
For testing Vibration and Back-light of device: *#*#0842#*#*
For testing Proximity/Distance Sensor: *#*#0588#*#*
For testing Touchscreen: *#*#2663#*#*
Only For Audio Test: *#*#0289#*#* or *#*#0673#*#*
To open Service Mode: *#*#197328640#*#*
To Know Hidden Service Menu (Motorola Droid): ##7764726
Field Test: *#*#7262626#*#*
To Format your phone: *2767*3855#