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G700-U10 Smartphone
Maintenance Manual
Troubleshooting Process
The Wi-Fi module has no RF switch. You need to use an RF cable to check the signal
reception of each bands. Pay special attention to the matching circuit behind the balun. Make
sure the two matching circuits are consistent.
If no component is missing on the Wi-Fi circuit, the 4-in-1 chip may be damaged. Return the
phone to Huawei for repair.
Issue 1.0 (2013-07-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10 Circuit and Failure Analysis
53
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