Hello, got a drone from friend that has sit on the shelf for 2 years unused, it has air unit 1 with SD card inside. When i powered it up it recorded and read the original sd card. When i took it out and put it back in again it no longer reads sd card, i tried swapping out multiple sd cards but it says there is no card inside.
My guess: since it sit for so long maybe the contacts inside the reader oxidized? Any idea how to clean them?
Goggles record and read the sd cards no problem. On goggles it says there is no sd card inside air unit