Author Topic: Intermittent button misfire behavior - any thoughts?  (Read 5 times)

Marto

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Intermittent button misfire behavior - any thoughts?
« on: August 19, 2026, 10:44:14 PM »
I recently bought a PreenFM3 used. The seller had built tis unit himself.

I have noticed a intermittent misfire issue with button #1 of the bottom left 6x button matrix.

Every few presses it does not trigger.

Observations:
- I have turned the unit on approx 6 times over various days - sometimes the issue is there, sometimes not. 50/50
- If I tap very far to the left of the button, there is none
- Tapping to the centre or right of the button results in misfires.
- I tried a whole combination of different ways to press it. Momentary or long presses, same result.

Has anyone experienced this behavior and if so, do you think this is a software or hardware issue?

Maybe someone can suggest some things to try.

Thanks so much for reading :)