I do not know of the exact reason this 1800X version does not work but a local client had us get some of these for him a few weeks back only to find out they are not recognized in the I2. However, they work without issue in the Mavic. I've had the 1000X version in all of my own aircrafts for the last year or so and they've been great. Unfortunately we are not aware of solution to get the 1800X version recognized....maybe someone else knows of a magical solution.