China Mobile Phone Codes

Default user code : 1122, 3344, 1234, 5678

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