Small problem, I have a 6D and 5D3, I'm using an SDXC card in the 6D (exfat format) and a CF card in the 5D3 (fat32 format). I like that the 6D has a wifi connection and I frequently download the pictures with the wifi connection to my Galaxy Note 2. I wanted something similar to that with the 5D3. I purchased a OTG USB cable and tried to connect a card reader with the CF card in it, Note 2 does not recognize it. I know it works because it will read the SDXC card with the OTG cable. So now I have two ways to get the 6D pics on my phone and still zero ways to get the 5D3 pics on the phone. Anyone have any experience in this they can share? Thanks.