Problem with Black Jaguars, unable to update, stopped blinking

[MPlant]

So I've been running into some pretty devastating errors that I desperately need to fix and so far have had absolutely no success in doing so.

We've been using the black jaguars and the 2CAN, however, for some weird reason, the jags had been of a bad firmware. So we attempted to update them through the 2CAN web interface. EVERY SINGLE TIME WE'VE TRIED THIS, THE JAGUAR HAS STOPPED BLINKING AND BEEN UNABLE TO CONNECT. We've tried recovering them through BDC-COMM, and it gives us the "unable to connect to bootloader error."

We've tried everything at this point and thus have become incredibly desperate; I've gotten to the point where I'm considering ordering a set of new jags overnight. Does anyone have any solution to this problem? Any help greatly appreciate!