Regen braking on KTE-12S5-A

I just received this controller in a kit with a direct drive motor. Is it possible to enable regen braking with this controller?

I’ve enabled regen via the C13 parameter but it has no effect.

Here’s a photo of the bottom side of the controller. I don’t see any of the typical designations (is X and DS) that’s posted in the older threads.

some controllers simply don't have regen enabled or coded in their firmware, or they have it specifically disabled, leaving no way for the user to re-enable it.

maybe check out the kt open source firmware thread (casainho / stancecoke / etc) to see if that would let you have regen with this specific cotnroller hardware.

the project wiki may also have hardware info for various ocntroller versions / options.