Very scary 20 minutes ...
While the steps describe what action to perform, it doesn't give much information as what the device will do once you've typed the command.
For mine, at some stage i had no indication if the device was on, or off or connected properly. All you get is a blank, black screen
I continued to follow the instructions until the end and then flashed the original Kaiser ROM (the original one).
And it worked.
IMO, instructions should be appended to describe how the device will respond after a command (either screen turns off etc...).
Also, before the starting FrankenKaiser the 2nd time, make sure mtty is closed first.
It was scary as not only you can't tell if the device is on or off, plus you can't see if you've typed the command properly.
As promised, my $50 is on the way.
I hope others will keep their word and donate as promised.
Congratulations, good work !