You just need to type the codes using
Keypad:
*2767*3855#
Think before you give this code. This code is used for
factory
format. It'll remove all files and settings including the
internal
memory storage. It'll also
reinstall the phone firmware.
PS: Once you give this code, there is no way to
cancel the operation unless you remove the
battery from the
phone. So think twice before giving this code.
*#197328640#
This code can be used to enter into Service mode. You can run various
tests and change settings in the service mode.
*#0228#
This code can be used to get detailed information about
phone battery.
*#7465625#
This code can be used to check the status of Sim Lock and Network
Lock.
Codes to get Firmware version information:
*#4986*2650468# - SW Version, HW Version, MP, RF Cal
Date, CSC Version, CSC Model Spec, FFS Version, RC2 Version
*#1234# - SW Version and CSC Version
*#1111# - FTA SW Version
*#2222# - FTA HW Version
Wi-Fi and Bluetooth Test Codes:
*#526# - Wi-Fi Manual MFG Test Mode
*#232337# - BT RF Test Mode
Codes to launch various Factory Tests:
*#0*# - LCD test
*#0673# OR
*#0289# - Melody test
*#0842# - Vibration test
*#2663# OR
*#2664# - TM Command
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