My father in law has an Apeman H50 that was working, but now is not. We got the pics off the memory card and put it back in, but it won't boot up. When I connect with the usb cable the screen comes on briefly then goes to file transfer mode. It doesn't matter if I turn it to test mode (which is where you do setup and formatting of memory card) or in "on" mode. I have also tried a hard reset. Still nothing. Put new batteries in twice, no change. Any thoughts on this?