China Mobile Secret Code
- 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
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