My understanding is that this message was after one of the RC upgrades which I believe is to help stop the RC freezing issue. You now need a fast enough card. That Sandisk card meets the spec fine. It is possible, as has been suggested, that card could be fake as they are often counterfeited due to having a well known name. I have never had an issue with cards from Amazon direct. I would be more wary about unknown 3rd party vendors in the marketplace
If you have an RCN1 put the SD Card in the drone. Connect to the drone with the RCN1 controller and re-format the card in the drone.
Turn off the drone and put the card in the rc controller. Reconnect the RC controller with the drone and see if it is recognised. I had to do this with mine and it sorted out the problem.
actually there is a way to format it in the controller pull menu down the very top right cog bit into settings then find storage tthen see card under itt will say format
Thanks for this. I have the new RC Controller, but I tried it anyway in case there was some kind of auto-format when a PC-formatted SD card is put into the drone. Alas, no luck. I assume I have picked up a fake on Amazon, or it is just a dud. I’ve never had any issue before, and to be fair, it writes ok via an adaptor on my PC, so not sure what’s going on here. Maybe it’s a fake that can’t achieve the stated write speeds needed by DJI but works ok for normal use. Then again, it worked ok in the controller with no error messages a few weeks back, which led me to think it might be a firmware issue that others might be experiencing. Weird.