Hi every1! I have a similar issue on my A510 using Samsung Spinpoint M8 1TB external hard drive. It works, but not for long
What I'm experiencing really starts to annoy me. When, for example, I'm transferring my videos from a tablet, hard drive just "disconnects". A second after I get a new notification message that USB device has been plugged in, like I myself disconnected the cable and connected it again. That wouldn't be a big problem if my whole ntfs file system isn't f....d up and previous data lost! After that I need at least 15 minutes to correct the problem in my Windows environment, not saying I have a couple of gigabytes more free space after fixing that (lost data). Hard drive is almost new, doesn't behave like that when connected to a laptop or a desktop, so according to what all of you are saying, my tablet doesn't distribute (constant) 500mA, or hard drive doesn't meet USB 2.0 specification and requires more than 500mA, right? I first thought it's about Android's ntfs compatibility, but now after I've read this thread, I'm with you. However, my ntfs formated sd card and ntfs usb stick don't behave like that, so it's not about ntfs afterall. Hard drive indeed comes with 2 usb connectors merged into a microusb, but that's not helpful since I have a single usb port on my tablet. Also, I can't have my hard drive connected while recharging in order to give my tablet more "juice". Should I maybe lock the screen to conserve the power and have a more stable current flow when copying data to my hard drive? I might try just that. What do you guys think?