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S7-PRO Maintenance Manual (Basic Version V2.1)
INTERNAL
The SDC3_CARA_CD indicates PIN of the SD card and is used for identifying the SD card.
When the SD card is inserted, the voltage of SDC3_CARA_CD changes from a high level to
a low level. The MSM8260 determines that the SD card is available. Then call the SD card
driver to access the SD card.
2012-07-20
Huawei Proprietary and Confidential
Page 55 of 97
Copyright © Huawei Technologies Co., Ltd.
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Troubleshooting
