How to restore factory setting in china mobile

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I have China mobile phone M002L. I have used different code like:
default user code: 1122, 3344, 1234, 5678
Factory mode: *#987#
Enable COM port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
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#.
Try it and reply. Best of luck.