My book can be used normally by using the phone online or when I am online, but I have a serious mistake in the network cable.
1. Appear dialog box: Windows-System Error
Microsoft Windows Detected and Recovered From A Device Failure. Please save your work and reboot to TRSTORE FULL FUNCTIONALITY.
2, the display becomes 640 by 480 Pixels, Color Quality becomes Lowest 4 bit, and cannot be changed.
I don't know who can give you a point, thank you.