If your Instict sensors fail to operate - it might be a software issue.
These steps might help (at least it worked for me):
Connect to PC
Delete ALL files from the instict disk drive
Download and copy firmware (I tried 1801 backdata beta)
Disconnect and update firmware
Turn off instict, boot up diagnose mode (CTRL + ABC, when display alive release CTRL but keep holding ABC)
In diagnose mode check baro is VALID
