Thanks for the reply.
Powering on while pressing Hotknob brought the pedal back to life. It
now operates as it did before. However
– the Updater app never sees the pedal, whether started normally or
while holding Hotknob.
– I still have the problem where attempting to save a preset crashes
the device (the display goes dark, or just freezes).
I tried the factory reset, which appeared to work. But the problems
So it’s not happy. What would you suggest?