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Thread: Bricked my CMU and need a new one - what is the part number for replacement?

  1. #1
    Registered Member

    05 mazda 3

    Join Date
    Mar 2017
    Location
    jersey
    Posts
    19

    Bricked my CMU and need a new one - what is the part number for replacement?

    I was trying to update the firmware on a 2015 Mazda 3, but for some reason it failed. I used the same file as my 17 CX-5, which worked perfectly.

    Very upsetting, but I guess I need a new CMU. What is the model number, and can I use any CMU from a Mazda3 in that year?

    Any help would be greatly appreciated!!

  2. #2
    Registered Member

    05 mazda 3

    Join Date
    Mar 2017
    Location
    jersey
    Posts
    19
    Just did a post-mortem. Looks like the USB stick I used failed, as the hashes did not match. DO NOT USE A CHEAP USB STICK.

    Lesson learned. Anyone have advice on how to replace my CMU? Is it much more complicated than removing the screen (which I have done)? I'm assuming it is plug and play?

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