I have a TT One, 2nd edition. It worked just fine for a long time. My husband accidentally hit the sd card one day causing it to eject and now the unit will not work. When you power it on a picture comes on that shows the sd card coming out of the unit and then a red x over the sd card. It just repeats over and over on the screen. I have been trying to perform various fixes that I found online, but to no avail. I created a backup using windows explorer ensuring that the "show hidden files" was checked. I ran the scan & repair option. I have downloaded the HOME software, but even with the unit connected to the computer it does not recognize a device being connected. When I connect the device it launches HOME but does not recognize that it is connected. My computer is recognizing that it is connected as drive E. I have no idea what else to do to fix it or how to get HOME to recognize it.