China Mobiles Secret Code :

Maximus, Symphony, Bluetooth, Carboonn, GFive, Alcatel and Much More

–Default user code : 1122, 3344, 1234, 5678
–Engineer mode :*#110*01#
–Factory mode :*#987#
–Enable COM port :*#110*01# -> Device-> Set UART -> PS Config -> UART1/115200
–Restore factory settings : *#987*99#
–LCD contrast :*#369#
–Software version :*#800#
–Software version :*#900#
–Set default language : *#0000# Send
–Set English language : *#0044# Send
–Set English language (new firmware) : *#001# Send

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