I have a Canon EOS 550D and cannot get two different memory cards to work. The first one is SanDisk Extreeme, microSDXC 1, 64 GB and the second is a Verbatim SDHC class 4, 8GB. The situation with the SanDisk memory cards is that the camera recognises it and I was able to take a few photos (30 max). Afterwards I get the err 02 ( Card cannot be accessed. Reinsert/change card or format card with camera.)
Regarding Verbatim SDHC, the camera does not even recognise there is a card present in the memory slot. Interestingly, It works with a microSDHC class 4, 8 GB card from a different brand.
Does anyone have any suggestions how I can make those cards work with my camera?