I recently updated my HX effects unit to the newest firmware update, (3.15 I believe) but it won't turn on anymore... (Had to find that out during rehearsal...)
It did turn on once or twice since I updated it, so I'm not sure if that's the problem. (But I did find it strange)
The power supply still seems to give power, so that can't be it.
Bought the unit secondhand, and since I'm located in the Netherlands, I don't think sending it back to Line 6 will be an option for me... : (