Amazon.com: [Upgrade Grounded] 4 in 1 Intelligent Rapid Multi Battery Charger Hub (Charge 3 Batteries & Remote Controller) Compatible for DJI Phantom 4/4 Advanced/4 Pro V2.0/ 4 Pro Plus Obsidian Phantom 4 Series : Toys & Games
How to Update DJI Phantom 4 Pro V2.0 Firmware with DJI GO 4 - YouTube