China Mobile
Secret Codes and Pinout:
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
*#0086#, *#0886# set to
China *#0084#, *#0966#
set to Vietnamese
*#77218114#
*#19992006# *#881188#
#*94267357#
*#0084#cal