Lenovo TB-J606F Safety, Warranty & Quick Start Manual page 10

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Use the Pen
1. Hold the pen close to the tablet until a white dot appears on the screen.
2. Use the upper and lower button functions of the pen.
Using the pen on a coated screen may interfere with the pen-writing experience.
If your pen is not responsive, please try switching pen protocols. Hold both
buttons consecutively for 25 seconds to switch between pen protocols (WGP
& AES).
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