hi team....  i have using the usb drive thru the OTG cable earlier on my samsung a7 however when i connect usb drive thru otg on my samsung a7 now its not shows anything and i have already formated the usb drive to FAT32  but still my mobile is not shows anyting when i connected and apart from that i have other usb drive as well but  both are not shows connected when i connect thru otg cable on my mobile. please assist.