Table of Contents
Advertisement
G700-U10 Smartphone
Maintenance Manual
Troubleshooting Process
Figure 10-53 Troubleshooting SIM card detection failures
Circuit Signals
Table 10-17 Circuit signals of this section
Signal
SCLK
SRST
VSIM_PMU
SIO
Issue 1.0 (2013-07-22)
SIM card detection
failure
Is the SIM card
properly
functioning?
Y
Resolder or
replace U401
Description
Clock signal
Reset signal
Voltage signal
Data signal
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
N
Replace the SIM card
Reference Value or Waveform
/
/
If the card can be detected, the voltage should be 3.3 V.
/
10 Circuit and Failure Analysis
79
Advertisement
Table of Contents
