M-One / M-One XL: How to clear all user presets

This is how:

1. If the unit is on, switch it off,
2. Hold the "ENTER" key, while powering back on, and the following appears in the display: "M-ONE 1.05 Front 1.5" (on the M-One XL it will say: "M-ONEXL 1.08 API 2.0"),
3. Choose the menu item "Clear all presets ?",
4. Press "ENTER", and wait a few seconds. Now the display should read "Clear/reset done",
5. Power off the unit and then back on. If the operation was successful, the display will read "> Kernel Cleared".