What firmware version does my camera need to work with the BMPCC Display Modification?

The Tiltaing BMPCC Display Modification requires Blackmagic Camera firmware 6.9.1 or higher to function properly. Our engineers may install the correct firmware version if we receive your camera and it is using an incompatible firmware version.

We suggest visiting blackmagicdesign.com/support and updating your camera before sending it in for the modification service.

Source: What firmware version does my camera need to work with the BMPCC Display Modification? on tilta.com