Hi there. I tried to do a firmware update, but had a power failure during the process. Now I cannot hard reset or reload firmware. I have the 495 Pro. I downloaded the factory firmware from your website, format to FAT32 (1GIG SD Card) and copied the image on the root. Pulled Power and held down the Power Button while plugging back in, with the SD Card inserted...but nothing. The display stays dead and I left it on for more that 15min. (Not sure how long the firmware installation takes). I'm now at a dead end. Please can someone assist? Thank you. P.S. Definitely not a hardware issue. Have been working fine until I tried the stupid update. Thank you.