4 points, mode 2
a. The
b. Follow the instruction in green to touch the center of Cross Mark.
c. When the instruction turns into yellow, releasing the tapping from the
screen.
d. Follow the instruction in green to touch the center of Cross Mark.
e. Repeat Step 2 – Step4 to finish the calibration procedure.
3. When the calibration procedure is completed, the message shows:
Chapter 6
mark shows in the middle of the length of the screen..
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