Can we downgrade to former OS

Is it possible to downgrade to a former OS with the Quad Cortex?
Maybe useful when something in a new OS don’t work
How can this be done and were to find the older OS ??

It’s some type of digital distortion and it’s BAD! I have a concert tonite. Come on NDSP! How do we downgrade???

there isn’t an official way to do this, unfortunately

Restore your Cloud Backup with the old version

AFAIK, that doesn’t change the firmware.

this is correct, there is no way to downgrade firmware unless support has a trick