China mobile Secret codes

Now let me post certain more china mobile secret codes for you better use of china mobiles.using these secret codes you can perform various functions.

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 : *#001# Send

These are the latest list of secret codes for china mobiles