Question about Apple iPhone 3G
IPhone 3GS has a built-in digital compass that works just like a magnetic needle compass. The accuracy of digital compass headings can be affected by magnetic or other environmental interference, including interference caused by the close proximity of the magnets contained in the iPhone earbuds. The compass may need to be calibrated from time to time. iPhone 3GS alerts you whenever calibration is needed. To calibrate, hold iPhone 3GS in your hand and move the device in a figure 8 motion until the calibration screen disappears. The digital compass should only be used for basic navigation assistance and should not be solely relied on to determine precise locations, proximity, distance, or direction.
Posted on Nov 14, 2009
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Posted on Jan 02, 2017
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