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Thread: Bricked H3... almost

  1. #1
    Junior Member SwedeBurb's Avatar
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    Default Bricked H3... almost

    I came close to bricking my wife's 2007 Hummer H3 3.7L tonight! I could read it without any issues. When I went to reflash it failed... it erased the PCM memory and just when it said it was starting to reflash it failed. I could not get any contact with the PCM after that so I tought I was f***ed. Luckily I was able to reprogram it with GM SPS using a Mongoose cable so the truck is now up and runnig again

    Does anyone know exactly what I need to do to avoid having that experience again? Any specific fuses that need to be pulled or should I just rip out the PCM and bench flash it instead?

    /Stefan

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
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    Have you downloaded the latest V7 & V8 software releases HERE? (Plus update the V2 firmware).
    These contain a fix for a bug that recently popped up that allowed modules on the vehicle to come back to life during the PCM erase which interrupted the flash process.

    Cheers,
    Ross


  3. #3
    Junior Member SwedeBurb's Avatar
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    Yes, I was running..

    7.5.7 (Build 206)
    8.2.1 (Build 197)
    Bootblock 2.07.04
    Firmware 2.07.29

    Should I send you guys the .blx files?

    /Stefan

  4. #4
    EFILive Developer Site Admin Blacky's Avatar
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    Quote Originally Posted by SwedeBurb View Post
    I came close to bricking my wife's 2007 Hummer H3 3.7L tonight! I could read it without any issues. When I went to reflash it failed... it erased the PCM memory and just when it said it was starting to reflash it failed. I could not get any contact with the PCM after that so I tought I was f***ed. Luckily I was able to reprogram it with GM SPS using a Mongoose cable so the truck is now up and runnig again

    Does anyone know exactly what I need to do to avoid having that experience again? Any specific fuses that need to be pulled or should I just rip out the PCM and bench flash it instead?

    /Stefan
    If you used the V8 software to flash the truck, can you please locate the *.htx trace file of the failed flash and send it to me.
    If you used V7 software to flash the truck, can you please locate the *.blx trace file of the failed flash and send it to me.
    Send to paul@efilive.com

    Instructions on where to find the trace files are at the bottom of this page:
    http://support.efilive.com/kb_articl...8254-QOGC-9586

    Regards
    Paul
    Before asking for help, please read this.

  5. #5
    Junior Member SwedeBurb's Avatar
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    E-mail sent...

    /Stefan

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