Sim Card; Figure 9-46 Sim Card Circuit Diagram - Huawei U8815 Maintenance Manual

U8815
Maintenance Manual

9.4.6 SIM Card

Figure 9-46 shows the SIM card circuit diagram.

Figure 9-46 SIM card circuit diagram

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The signal input and output of the U8815 SIM card interface are controlled by PM8029.
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Failure: The handset cannot detect the UIM card.
Solution: Check whether the UIM card holder functions properly.
Figure 9-47 shows the troubleshooting process for the UIM card detection failure.
Issue 1.0 (2012-02-13)
Analysis
Troubleshooting Process
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9 Principles and Failure Analysis
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