Peep-sound after update FW 1.7.6

Hello, after updated my rev.1 procyon to FW 1.7.6., there is a continuous loud peep sounding (like deeeeeee), even when no session is running or the volume is set at minimum.
Changing div settings, using PC USB/ext USB/new batterie has no influence.

So I've revert it back to FW 1.7.4 and its turn to normal,no peep sound.

Anyone else has this problem with rev.1 procyon or is there new corrected FW coming for this issue.

I didn't notice that. I'll test it out to see what could be the problem.

Thanks for letting us know.

-Andy.

I just tried the OS and the sound is the same (for me at least) with either OS.

Maybe try updating the OS again with 1.7.6 and see if it maybe didn't take the first time.

-Andy.