Question about Lexicon MC-12 Balanced Amplifier

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Trouble during the upgrad of lexicon MC-12

I was upgrading my lexicon mc 12 balanced from V2.00 to V3.11getting to the step where the messege on the computer says :wait for mc12 to restart, unfortunatly we experienced an interuption of power.
Consequenses: unfiniched upgrade and message on mc 12 says

Diagnostic tests
* DEC FPGA E:001E*

And when i try to repeat the procedure of upgrading, i got the message no comunication betwen the computer and the mc12.
I tryed also to save my config in order to do the factory reset with Lexicon_Config_V160 ... ....didn t work

Know i'm stuck with that message, and can't do anything with
help me please

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  • louna_st Mar 30, 2008

    why, can't install it myself? I just wanna know what to do and i'l do it.

  • louna_st Mar 30, 2008

    the problem is not the computer but the MC12 wich is freezing on the diagnostic tests and an error message

    and i don't know what to do??

  • louna_st Apr 02, 2008

    Thx Ginko,

    Everything now is ok, you were right, the problem was the PC, so i changed it and could easelly fix the problem.
    I could restor the V2 but not the V3, no matter, i'll contact a service center ti fix it.

    So thanks a lot


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Try on a different computer , if it still get stuck at the same point bring the amp to sevice shop, they will reinstall the firmware

Posted on Mar 30, 2008

  • Ginko
    Ginko Mar 31, 2008

    If ypu lose power when upgrading your device sofware, you letterally fry your device firmware . The machine now is not able anymore to do post test, it won't perform startup prcedure, and it should not be able to perform normal operations.
    If you can connect the machine to same or different computer, and the amp is seen by the computer you can restart the software update and finish it, this will fix the problem.
    However it is unlikely that you can establish communication between your MC 12 and any computer if the machine is in conditions descripted above. And you cannot-home install the firmware if you cannot connect mc12 to computer, you will need to reprogram the firmware chipset.
    The only solution in your case is taking the device to a service shop and asking a firmware upgrade, they will flash your mc 12 memory with required firmware, and you should be able to use the device again, usually this is not an expensive operation.


  • Ginko
    Ginko Mar 31, 2008

    To find nearest authorized service centre in your area contact lexicom here, providing your details and address.
    Also check this info.

    Also small rectify to above, your software is not stored on a chip, but on the HD, the result does not change, If the device does not boot to finish the software install you need to call a service to have The HD image restored.



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