DM7020HD V.2 crashed

  • Hi Forum.
    I've a DM7020HD v.2 which will not boot at all.
    Even the original image from is a invalid image
    I'm trying to upload - both through a browser but allso through Dreamup.
    The same result each time. I cannot upload any image or getting it reset.¨
    I had DExtra image running on this DM7020HD but the image crashed the other day - then I tried to reset it back to default - but getting the same result each time:
    See attached image - this is the result when trying to upload the default image from Dreambox. The same result is with NewEnoigma2 or PeterPan4.1 image.
    None is accepted by the DM7020HD - What to do from here ?