I am having trouble with this 22500 3.6 update. I was able to do the 2.8 patch previously but this one is problematic.

I get stuck on the last step where the 8 Mode LEDs are all Solid (as well as the 4 reverse/octave lights)

The next step says to press and hold the Mode Knob until you see the “U” displayed. But when I press and hold the MODE knob for the last step the lights never change and the little “u” never shows up. It just sits there with all of the solid lights on still. I’ve tried holding it a long time too

Any ideas? Maybe it is unique to the 2.8 -> 3.6 path?