Hello. I installed this image. It worked well. But then I upgraded the software from the device menu. After this process, the solo2 box didn't turn on. The word of black hole appears on the screen and spinner is not roating. I wanted to install a new software. The device comes with the same screen without reading the USB. So I can't install any images. But I can connect to the device with ftp. What do you think I should do?Do I need to delete a folder with ftp?