Hello, I'm using a UDOO quad board with android 4.4.2. It worked till few days ago. Now I'm facing some issues during the boot: it take a long time or sometimes it doesn't start at all. I've attached the USB con the CN6 and there are no logs in the first 5 secs to 1 minute or there are no log at all. I tried with a new SD card with the same results. Do you have any suggestion? Thanks in advance, Stefano.