DDJ 1000Srt Cue pads and play pads and effect pads not lit???

Hey Louie,

You'll need to first ensure that you have macOS Big Sur 11.2 or newer installed, and ensure you have properly installed the DDJ drivers following this guide. If you have an M1 processor, you'll also need these instructions as there is an extra step required to allow the drivers through the system security.

In addition, you must be using the Serato DJ Pro 2.5.0 beta available here; they have not yet announced full macOS Big Sur support for their public release.