fans56eb1644
 lvl.1
United States
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DJI Natalia Posted at 2017-6-21 23:51
We are sorry to hear about the firmware upgrading issue you're faced with.
Please help us confirm the following info:
1. You purchased Spark or Spark combo? You upgraded it with controller connected or not?
Hi Natalia,
I purchased the Spark Combo. When I upgrade, it is with the controller connected. RC is connected to AC and I was able to activate the aircraft using the phone app. Prompt to upgrade AC first, so I did that, but progress stuck at 99%, and after awhile, I realize the RC controller is disconnected from AC as well. I reboot and then the drone is unresponsive.
No, when connect to PC, PC will signal something is connected but no response from DJI assistance app. If I have SD card plugged in, it will show up in PC as well.
The aircraft LED stays at fast flashing yellow on back propeller and solid red on the font.
Tried with fresh battery, same result.....
I have tried on 3 PCs, two with Win10 and one with Win7.
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