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S7-PRO Maintenance Manual (Basic Version V2.1)
INTERNAL
Step 16 Built-in microphone test
Switch between Record and Play. The sound will enter into the microphone and travel out
from the speaker. Click Success to proceed.
2012-07-20
Huawei Proprietary and Confidential
Page 93 of 97
Copyright © Huawei Technologies Co., Ltd.
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Troubleshooting
