Chinese mobile phone Secret Codes

*#66*# Set Factory Mode CONFIRMED
*#8375# Show Software Version CONFIRMED 

More codes to reset chinese mobile phone

*#77218114#
*#881188#
*#94267357#
*#9426*357#
*#19912006#
*#118811#
*#3646633#

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

Restore factory settings: *#987*99#

LCD contrast: *#369#
software version: *#800#
software version: *#900#
set default language: *#0000# Send
set English language: *#0044# Send