I’ve recently bought a new Lenovo Yoga Laptop 300, 11’, N3710, fanless, SSD (dead silent), 1G LAN.
The problem is when Lenovo turning back ON (from reboot or power off), it’s (kind of) HANGs the PWD’s USB device (XMOS not responding anymore), and PWD needs to be restarted (to be recognized by any PC).
After some investigation, I’ve found out that after turning off the laptop, USB device (inside the Lenovo) switches OFF (Red LED in PWD), but after a few seconds switches back ON (Green LED in PWD).
The simple solution is to disconnect the USB cable before pressing the power (ON) button, and then connecting it back (until the next power on).
Any ideas ?