Codes:

  • 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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