[Q] External Storage USB OTG Problems topic

Sorry by my poor english.

I can't use my external HDD in the LG G Pad V500 Stock, no root, with a USB OTG cable. Is a WD My Passport, 1Tb, formatted FAT32.
I tested them in my Moto G XT1033 and both are functional.
I can't find any threads with questions about this.

Thanks.