1.On the top right corner of the cover, '0' is still there.
    2.It is mentioned on page 4, one can access the Internet by setting up
    Windows. But it does not mention any reference for it.
    3.Page 10, about the LED Test, the sentence "So if the states those LEDs
    changes, they will be quickly overwritten" does not make sense. It
    should be rephrased.
    4.On page 14, about SQL setup, three cpp files are written, but I didnt
    see the origin of these files, again please provide the references here. 192.168.6.147