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  1. #1
    VIP domtorredo's Avatar
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    Bit of time waste

    Been long time since touched all this staff. But last couple of days got some spare time and did some can bus work.
    Not a best start but findings for now are
    Cd30 and tid doesn't send code over can bus but uses ID instead which changes with code change.
    So conclusion is to work out how that code and id is related to each other or some serial number etc.
    With known code and id can reset both over can.



    Sent from my F3111 using Tapatalk


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    • #2
      VIP+ soulman's Avatar
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      Hi Dom.

      Been busy myself with other stuff, I need to look into the insignia stuff now for retrofits and need to sort out the checksums for vin number changes

    • #3
      VIP domtorredo's Avatar
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      Quote Originally Posted by soulman View Post
      Hi Dom.

      Been busy myself with other stuff, I need to look into the insignia stuff now for retrofits and need to sort out the checksums for vin number changes
      Hi soulman
      Uhh checksums, could take a while to sort out.
      Have you tried summing all bytes and xoring them? Could be just sum of vin bytes and xor. Sure all this can be worked out if you know where crc bytes are stored.


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    • #4
      VIP domtorredo's Avatar
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      Quote Originally Posted by soulman View Post
      Hi Dom.

      Been busy myself with other stuff, I need to look into the insignia stuff now for retrofits and need to sort out the checksums for vin number changes

      right maybe you got idea

      bytes 83 95 code 1914
      bytes f3 67 code 0000
      bytes 74 c7 code 1000

      they do not appear in dump nor can messages reveals anything
      if you got any idea would be great

    • #5
      VIP+ soulman's Avatar
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      yes have an idea... will reply tomorrow when got some examples, currently making bluetooth looms

    • #6
      VIP domtorredo's Avatar
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      Quote Originally Posted by soulman View Post
      yes have an idea... will reply tomorrow when got some examples, currently making bluetooth looms
      Ah great im still trying to figure out more data

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    • #7
      VIP domtorredo's Avatar
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      Right shame again
      Looks like id is not code related
      Found this
      If same code is used again it keeps last byte and adds a new one
      Like this
      AA BB next one will be BB XX
      Ah and there is protection too
      On continuous id request radio goes in radio safe mode but not setting a counter and not changing timer just in unusable state, power off completely and its back to normal.

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    • #8
      VIP domtorredo's Avatar
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      Work stopped at this point
      There isnt any reply to request messages
      So no code can be pulled over can bus.
      Useful information pulled from all this

      Screens and radio are tied together with ID which gets assigned when code is set.

      (Current work) If ID can be located in dumps then dumps can be married with 3rd party software.

      Units with known code can stay in car as ID can be pulled out over can bus. (still needs more testing)


      Anyone got any ideas or suggestions is it worth going further or lets stick with what available now.




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    • #9
      VIP domtorredo's Avatar
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      An update again
      Found id in tid screen dump
      And it matches can bus transmitted one.

      soulman did you fancy a bit head scratching?

      Got bytes from cd30 blaupunkt which somehow makes up an id
      But haven't figured out yet how

      Will double check if these bytes are transmitted over can maybe will narrow down something from 13 bytes which i got now


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    • #10
      VIP+ soulman's Avatar
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      sure dom.. send me the info to look for.. will have a play at weekend, also still need to message you about the insignia stuff... just been too busy building looms

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