yeah, you can tell the pros by how they deal with that stuff effortlessly. We used to drill for all sorts of problems, and had redundant systems for any kind of trouble, and still Murphy will eat your lunch. Best you can do some days is make it transparent to the audience.
I still want that Tony Stark "swipe it instantly from my phone to your projectors" tech. But in the real world, Tony would just be swiping... and swiping... "Do we have slides? Are those the slides? Maybe this video will work?"