- Join
- Dec 21, 2018
- Messages
- 54
- Age
- 68
I bought a second NOS ( new old stock) controller on ebay. I had to update the firmware before i could use it. I have a Samsung S8+ . the firmware update went well. I also bought some NOS batteries. When I used them said that there was a firmware mismatch did not say for what and i was thinking i just upgraded the firmware did not know it was for the batteries. so then it forced to do the firmware update said can not take off. So I did each battery and you have to be really patient. from 0-99% it downloads the firmware , then from 99%-100% it installs the update. both center LEDs were on on the battery. After about 5 minutes the spark rebooted on it's own and the DJI GO4 app said that the install was successful. I know the controller firmware update paused at 99% also....not sure how long.