Home › Forums › Products › Stompboxes › H9 Pre/Post mode reverts to Normal mode upon power-cycling › Reply To: H9 Pre/Post mode reverts to Normal mode upon power-cycling
If you have not already, try a complete Factory Reset (as described in UM). If that fails, you will probably want to send it in.
There is one possible hardware problem that can cause nothing to be saved at powerdown, but this would include the current preset, so is noit the case.
What you have is not a known problem, and I can't think what would cause it.