Help: Downgrade CCR2116-12G ROS V7 to ROSV6

Hi,
We recently bought a CCR2116-12G for a new site.

As some of the 3rd party scripts does not work properly with ROS V7, we want to downgrade it to V6.

We tried to downgrade it through /system/package/downgrade, which does not help.

Please help if there is any other way to downgrade the ROS.

First thing to check: what is the factory SW version your device came with ?
You can not go lower.

Probably time to fix the scripts… This device can not run old RouterOS 6.x…