I dont know about MHL, but I have an OTG cable. Using this with OTG Disk Explorer (Lite) I can see the database file on my usb stick. However, when running KeePassDroid, it cant see the usb stick when I attempt to navigate to it using its file menu. I have only just got this tablet, am a bit new to the Android world, so any help needs to be in simple language please! If I copy the database file to my Nexus (which I really dont want to do long term), then KeyPassDroid runs ok.