SECRET CODES FOR CHINA PHONES

The following are some secret codes for china phones:

Engineering mode:*110*01#
Factory mode: *#987#
Restore factory settings:
*#987*99#
Software version: *#900# or
*#800#
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