General...
*2767*3855#
Hard Reset . This will delete all user data.
*#*#4636#*#*
This code will show 5 hidden menu .
Battery information
Phone information
Battery Usage
History
Wifi
*#06#
To Check the Imei Number.
*#1234#
With this code you can view SW version PDA CSC and MODEM
*#*#34971539#*#*
Unlock Camera Detail .
*#197328640#
To activate the Service Mode
*#0228#
For ADC Reading
*#0842#
Testing Vibrate Motor Test Mode
*#*#273283*255*663282*#*#*
This code will open back up file system. where you can copy your data
*#0782#
Real Time Clock Test code
*#9090#
To diagnostic configuration
*#7284#
USB I2C Mode Controller
*#0283#
Packet Loopback
*#9900#
Try System Dump Mode
*#7780#
For Factory Reset. Will remove download apps,OS,Google account setting.
*#7353#
Testing Quick Test Menu
*27674387264636#
Sellout SMS
For testing Bluetooth , GPS,Wifi try these codes...
*#*#232338#*#*
MAC address for WIFI
*#*#232331#*#*
Bluetooth testing
*#*#232337#*#
Bluetooth device address
*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#*
WLAN testing. You can use menu button to start various tests.
*#*#1472365#*#*
GPS testing
Various and Important factory test with these codes...
*#*#0673#*#* OR *#*#0289#*#*
Melody test
*#*#2664#*#*
Touch screen test
*#*#0588#*#*
Proximity sensor test
*#*#3264#*#*
RAM version
*#*#2663#*#*
Touch screen version
*#*#0842#*#*
Device test (Vibration test and Back Light test)
*#*#0*#*#*
LCD test
*#331#
Outgoing International SMS status
*#43#
Call waiting status
*#21#
Unconditional Call Forwarding status
*#30#
Incoming caller ID status
*#31#
outgoing caller ID status
*#35#
incoming SMS status
*#351#
Incoming SMS If Roaming status.
*#33#
Outgoing SMS status
Note : All these codes are not tested . I have tested some of them. I do not take any responsibilities for any loss.
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