Toshiba WT12PE-A Series User Manual page 47

Calibrating digital compass
If you have downloaded a compass application to use this feature, note
that the performance of any compass feature varies depending on
environmental conditions. For example, any source using electromagnetic
or radio waves.
Before using any compass feature the compass needs to be calibrated for
accuracy. To calibrate, disconnect the AC adaptor and remove all
peripherals/cables, and then horizontally/vertically rotate the computer with
the power on several times as shown in the illustration below. Please note
this is the most effective method of calibrating this computer.
Do not place any products utilizing magnetic materials in close proximity to
the area marked in the following figure.
User's Manual
Avoid having direct contact with the other edges of the hand held
device while the wireless device is turned on and transmitting. Only
factories installed wireless transmitter can be used with this hand held
device to satisfy RF exposure compliance.
Some drivers/utilities might not perform install and uninstall operation
when the screen orientation is changed to landscape mode. If it
occurs, switch to portrait mode to proceed.
Figure 4-4 Calibrating digital compass
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