PROBLEM

I turned on my controllers with Start + B as always.

I installed a fresh copy of Recalbox 8.0.2.

I go to Pair a Bluetooth controller, and set the controller to bluetooth pairing mode.

After a few seconds, Recalbox says "No controllers found".

I updated my SN30 Pros to the latest firmware.

I tried setting controllers.bluetooth.ertm=0 as another post said to try. No change.

SOLUTION:

I set controllers.ps3.enabled=0 and it FINALLY WORKED!!

I hope this helps someone else, because I couldn't find how to do this and tried for hours.