When you encounter a "sensor faulty" message upon booting your instrument, please note the sensor numbers affected.

On an Osmose with its 49 keys, the lowest key has sensor number 0 and the highest key is number 48. The C keys in between have the numbers 12, 24, and 36. Based on this, you can identify the key the error message refers to. Example: An issue with sensor number 28 will be four semitones above middle C, which is an E key. Try to determine if the concerned key behaves differently from neighboring keys. It's possible that it won't make a sound, or, on the contrary, triggers a note without being pressed.

If you don't find a problem with the key's behavior, or if the error only shows occasionally but not systematically, then the autodiagnosis of Osmose may be too strict, and this is a false alert that future firmware updates can remedy.

If the concerned key exhibits unwanted behavior, ensure that you update your Osmose to the latest firmware first, following the firmware update instructions. The sensor initialisation and autodiagnosis that happen on every boot have been significantly improved in newer firmware versions, and the problem may already be solved with an update. 

Attention: During the firmware update, manually click ‘ok’ on Osmose whenever you see the error pop-up on its screen after (auto)booting. Clicking ‘OK’ ensures that you are not blocked and allows the update process to continue for the moment. 

Even if the issue persists after the update, please open a ticket in the Osmose Technical Support section to receive personalized assistance.