Sound guy at church here - just to warn anyone doing the 1.6 update to have a backup plan of rolling back to a 1.5.11 firmware if needed. We had an issue where we were forced to update our desk due to musicians mobile SQ4U apps on IOS all updated meaning they lost the ability to adjust their levels. We upgraded the desk on Thursday and fully checked all features were working having taken full show and scene backups. Update installed successfully with no problems. Powered all down and booted everything Sunday morning for a service only to be presented with an SQ 7 desk that looked like a Christmas tree with all inputs clipping with horrific distortion that would rival the heaviest djent bands- even without anything being played through them.
Reapplying the firmware didn’t help- same problem. Tried restoring the show and scenes from backup usb - nothing. Desk configuration seemed fully in order, just massive distortion- glad I hadn’t turned the amps on yet! In the end had to emergency downgrade the desk by downloading the 1.5.11 firmware and installing that instead.
We had upgraded from firmware 1.5.3r3957
Can anyone in A&H comment as to what the cause may have been, and if there is a known bug/ issue where this may be caused under certain conditions?