Review on DJI HDMI Output Module Part 54: Stream Superior Quality Videos from Phantom 3 Pro/Adv/Phantom 4/Phantom 4 Pro/Adv to External Devices by Robert Long

Took me 5 minutes to replace it with the original USB board. I've watched a few YouTube videos on how to do this, but if you're even a little tech savvy, it's an easy fix. There was some confusion about this part because it only showed compatibility with the Phantom 3 series and I have a Phantom 4 Pro. Some reviews said it would work with the Phantom 4 Pro while others didn't. I dared to find out for myself and it worked with the Phantom 4 Pro straight away. The DJI go app immediately recognized that I had the HDMI option and allowed me to use it. I didn't need to update any firmware or software to get everything working right away. Hope that helps.