*#06#
to check the IMEI.
*#0000#
To check the firmware version and date.
*#92702689#
To check the IMEI. The date when it was purchased, and the date when it was repaired.
*4720#
To activates the Half Rate.
#4720#
To deactivates Half Rate.
*3370#
To activates Enhanced Full Rate.
#3370#
To deactivates Enhanced Full Rate.
*#746085685#
To check the SIM clock status.
*#7220#
To activate the GPRS and Packet Common Control Channel(PCCCH) supports.
*#7230#
To deactivate the GPRS and Packet common control channel (PCCCH)supports.
*#7760#
To check the manufacturing serial number.
*#2820#
*#7370925538#
Reset the mobile wallet.
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