Oh, there is. This blu studio one works fine with 32gb card. It is advertised to work with 64gb cards. But you jam a 64gb card in or otg it it cant read it. Complete bullshit.I don't think there's a size limit for OTG support; if the device can be recognised it should work. I hooked a 500GB external hdd up to my old Xperia Z and it was identified correctly. Couldn't do anything with it as it was formatted EXT3 for use with a Linux-based PVR box but as a proof-of-concept it worked fine.![]()