HOW TO: Downgrade Spark firmware - Spark - DJI Drone Help Forum
DJI Spark Remote firmware update V01.00.0600 fails | DJI FORUM
DJI Spark Firmware V 01.00.0900 | Released 12-21-17 - YouTube
DJI Spark Remote firmware update V01.00.0600 fails | DJI FORUM
DJI Quick Tips - Spark - Updating the Remote Controller Firmware | How to Update the Spark's Remote Controller Firmware. #Spark #DJIQuickTips | By DJI Support | Facebook