There was an update , that bricked your drone if you have any sensor issues, with the drone before or you had a light that was out on the drone, that one update could be the issue.
Phantomrain.org
Gear to fly in the Rain. Land on the Water.
You are not alone. Much like the ICE raids that have resulted in over a million self-deportations, with the noose tightening on drones in general, and DJI drones in particular, the clear intent is to discourage as many drone hobbyists as...
There is not a ban at this time. The problem is someone in US Customs believes that DJI is using children violating Child Labor laws and therefor decided to restrict them at customs and is either seizing them or returning them to DJI.