ICOM IC-M423G(E)

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  • slackie
    New Member
    • Jan 2023
    • 4
    • Sweden
    #1

    ICOM IC-M423G(E)

    Hi all,

    Not sure if this qualifies as a weird device. I am simply looking for a firmware/EEPROM dump of an ICOM marine VHF transceiver. Mine is MMSI programmed and I'm trying decode and identify bits to clear/change the MMSI.
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31068
      • Albion
      #2
      probably easier to look for CS-M92D Programming Software .
      i dont know what the cables have in them though.

        Comment

        • slackie
          New Member
          • Jan 2023
          • 4
          • Sweden
          #3
          Thanks! It's actually managed by the CS-424A software which I have obtained. I am waiting for the cables (OPC-484) to arrive which is two months away.

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31068
              • Albion
              #4
              the cable into the radio is just serial TX & RX @5v or 3.3v but i dont know the pinout

                Comment

                • slackie
                  New Member
                  • Jan 2023
                  • 4
                  • Sweden
                  #5
                  Found the pin-out and managed to reprogram it using their proprietary software. I also made EEPROM dump prior and after the MMSI removal so I have the delta on what bits to change if anyone is interested.

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