djiuser_9LGF4RIvcorn
lvl.1
United States
Offline
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I might have a solution?
I had no choice but to do the wireless transfer. I likely had some kind of data corruption following a crash, maybe I forgot to turn recording off before powering off the Spark. So the SD card could no longer mount on 3 different computers with 2 different adapters – no errors, just doesn't detect the card. Spark won't mount to computer via micro-USB cable, again no errors. I don't have the OTG microUSB-to-lightning cable. BUT... the Spark itself recognizes the card just fine, and I can see the videos in DJI Go 4 if I access the onboard card. So using DJI Go 4, I can download to the phone, then transfer from phone to computer. It will eventually transfer if I sit there and keep dismissing the "Download Failed" error and retrying. But for a video of several minutes, it takes 10s of minutes and can easily burn through 2+ full batteries and dozens of attempts.
POSSIBLE SOLUTION: After a lot of frustration, I was tinkering with the iPhone WiFi settings and seem to have fixed it?! Go to Settings / Wi-Fi, and select the Spark hotspot. In the details screen that comes up, select "Low Data Mode". This turns off background updates etc. I suspect my phone was trying to do other things eg checking emails, syncing calendar, etc. and that was breaking the connection. After making this change, I was able to transfer a 600 MB video with no errors!
Hope this helps others.
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