On my first flight i used a 32gb non branded sd card and the dji fly app did show it as n/a.
Put a 32gb sandisk in today and the screen tells me "sd card malfunction" !!
Is there anyone able to help? Also, is there a detailed description on what all the buttones on the small side of the controller are for? Cant find a thing!!!

Forgot to mention that I'm talking about the mini

Hi, I am sorry to for the trouble your DJI Mavic Mini has caused. With regards to the SD card. does the SD card work normally on other devices? If you are getting the same issue on other devices, I would recommend please try to Format the SD card and just a friendly reminder if you have any files stored on the SD card please back them up first before formatting the SD card. Please keep us posted for further assistance. Thank you.

Of course they work on other devices like gopro and motion triggered cam

djiuser_q1uHI6OP3pqW Posted at 11-20 12:41
Of course they work on other devices like gopro and motion triggered cam

It is recommended to try a microSD cards in our list:
16 GB: SanDisk Extreme, Lexar 633x
32 GB: Samsung Pro Endurance, Samsung Evo Plus, SanDisk Industrial, Sandisk Extreme V30 A1, SanDisk Extreme V30 A2, SanDisk Extreme Pro V30 A1, SanDisk Extreme Pro V30 A2, Lexar 633x, Lexar 667x
64 GB: Samsung Pro Endurance, Samsung Evo Plus, SanDisk Extreme V30 A1, SanDisk Extreme V30 A2, Lexar 633x, Lexar 667x, Lexar 1000x, Lexar High Endurance, Toshiba EXCERIA M303 V30 A1, Netac Pro V30 A1
128 GB: Samsung Pro Plus, Samsung Evo Plus, SanDisk Extreme V30 A1, SanDisk Extreme V30 A2, SanDisk Extreme Plus V30 A1, SanDisk Extreme Plus V30 A2, Lexar 633x, Lexar 667x, Lexar 1000x, Lexar High Endurance, Toshiba EXCERIA M303 V30 A1, Netac Pro V30 A1
256 GB: SanDisk Extreme V30 A1, SanDisk Extreme V30 A2