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Thread: Security Unknown Message During Write

  1. #1
    Senior Member Jim P's Avatar
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    Default Security Unknown Message During Write

    Long story short, was pissing around tuning with HP Tuners on my 2012, was always leary of HP Tuners. Anyways, it bricked the ECM after a few months of using it, ordered a used one programmed to my VIN, loaded up a tune on the

  2. #2
    Lifetime Member GMPX's Avatar
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    It might be a long story but your post was cut short....
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Senior Member Jim P's Avatar
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    Ah, what the hell lol.

  4. #4
    Senior Member Jim P's Avatar
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    I loaded a tune to the “new” ECM with EFILive, didn’t apply the RSA patch first. It gave a security “unknown” message after sending an unlock key, then after the message send an unlock key again and wrote the tune. That normal?

  5. #5
    Senior Member Jim P's Avatar
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    It takes writes and the truck runs fine other than some gremlins after the bricking of the original ECM from HP Tuners. When I turn the ignition to on, the exterior lights and instrument cluster illumination flashes twice. Other than that, everything is normal in operation of the truck.

  6. #6
    Lifetime Member GMPX's Avatar
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    If the ECM hasn't had the anti-tuning stuff turned off then it will still take a stock tune no problem.
    Are you sure you started with the correct base calibration? (It will be written on the sticker on the 'dead' ECM).
    I no longer monitor the forum, please either post your question or create a support ticket.

  7. #7
    Senior Member Jim P's Avatar
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    Yessir, CM90032. Wasn’t a pure stock file that I loaded to the “new” ECM though either, truck won’t run right or very well without some particular modifications in the tune file.

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