DISCLAIMER: This information is intended for experienced users. It is not intended for basic users, hackers, or mobile thieves. Please do not try any of following methods if you are not familiar with mobile phones. We'll not be responsible for the use or misuse of this information, including loss of data or hardware damage. So use it at your own risk.
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
