HUAWEI TECHNOLOGIES CO., LTD.
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4.13.2 Fault Summary
The Bluetooth IC U601 transmits and receives signal circuit have problem, so this circuit can
cause bad signal. The Bluetooth circuit main problems have the Hardware Device Busy, or don’t
fine device and connect fault. Normal the problems is poor soldered of U601, and re-soldered or
exchanged the u601 the problem was removed.
4.13.3 Cases
The Hardware Device busy. First check U700 is soldered all right. If it is poor soldered and got to
hot up, and power on Bluetooth, searching device the problem was removed.
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