Firmware update stuck at 1% and it tells me not to do anything

So me, like an idiot decided to update the firmware because it seems like fixes listed in the beta might solve some of my issues. It’s now been stuck at 1% for an hour and telling me not to do anything.

Also, the Red LED on the main board under the R1 is flashing 17 times, then pausing, repeat.

This should normally finish within a few minutes.
Which version of RT are you using?
Can you please try the latest RT4?