Oh dang, I know that looks scary, but don't worry you won't brick it. Be sure to get the FW from the MRCC page here:
https://conductivelabs.com/download/mrcc...re-update/
If the MRCC is connected to a USB hub, temporarily connect it directly to the computer's USB port for the FW update.
Double check the file name at the bottom of the Teensy Loader screen says MRCC.
That should get you back in action.
https://conductivelabs.com/download/mrcc...re-update/
If the MRCC is connected to a USB hub, temporarily connect it directly to the computer's USB port for the FW update.
Double check the file name at the bottom of the Teensy Loader screen says MRCC.
That should get you back in action.