Tp Failure - Huawei U9500 Maintenance Manual

U9500 Maintenance Guide
Figure 9-28 Handling process for the USIM card detection failure

9.2.10 TP Failure

Cause
Figure 9-29 shows the components, damage on which can cause the TP failure.
Issue 1.2 (2012-6-30)
USIM card detection failure
Check whether the USIM
card holder is in good
condition.
Y
Check whether the power
supply pin VSIM_VAR of the
USIM card is normal.
Y
Check whether the SIM_CD circuit
and signal cables are in good
condition.
Y
Resolder or replace U3801.
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N
Resolder or replace
J2102.
N
Resolder or replace
U3801.
N
Resolder or replace
the component.
9 Troubleshooting
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