Hello. I am new with using PLC's. I have a AB PanelView c400 that has a bad firmware flash. When it starts up, it gets stuck on "Boot" after the autotest. The rear usb wont power up and when I connect it to a PC to use Panelview firmware updater, it will connect while it is auto testing but as soon as the "boot" loads up, it kills the connection. I cant seem to find any way to recover this so here I am. Can anybody help me?