Hi guys,
I also have a problem with a 256GB SanDisk High Endurance card.
I have this message on the camera: Memory card needs upgrading. Please replace it. Please use U1 or above memory card.
With the 256GB card I get that error even though it is a V30 which is the equivalent of a U3, 30MB/s.
The 256GB card is new, it works without problems in GoPro 9, I connected it to the PC and copied data to it, I had no errors.
With the 128GB card it works without any problem.
I also updated the firmware to the latest version, no change.
Any ideas?
Thanks