D. STARTUP SEQUENCES
By pressing and holding certain button combinations while inserting the power cable, you can perform
the following functions:
D.1. Recovery Mode
Connect the provided USB-C cable from your H90 to your computer.
Press and hold the Select Knob, Perform Knob, and Quick Knob 1, while inserting the power cable
to enter Recovery Mode. The screen will display “Recovery Mode”.
Fig. D.1 The H90 is in Recovery Mode.
Open H90 Control, click the burger icon in the top left corner, and select “H90 Recovery”.
Select a release from the list of software releases and click “Install”.
D.2. Clear Current State
Press and hold Quick Knob 1 while inserting the power cable until the text “Clearing current state”
appears on the H90’s screen. This will not erase any saved Lists, Programs, or Presets, but it will clear the
currently loaded Program and reset the System and Tempo settings.
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D. STARTUP SEQUENCES