> I haven’t actually been brave enough to write a modified firmware to the thing yet - it’s a pretty expensive monitor - but I’ll get there at some point.

Honestly if you don't have working patches, it's really not owned.

I would love to get a better understanding of how to safely iteratively patch firmware. I bricked a router last week trying to add a TFTP boot path to the boot partition. It just sucks that it's so risky.

Relatedly, we also need good glitching tools, as some firmware even for cheap devices are not available unencrypted, and flash read is disabled...

We are NOT there yet but I hope we get there soon.

If you're prepared to get out a soldering iron and/or chip-clip, you can usually back up and restore whatever IC stores the firmware you're modifying, giving you a recovery path.

> we also need good glitching tools

There are a lot already, what do you feel is missing?