Charging Failure - Huawei U9500 Maintenance Manual

U9500 Maintenance Guide
Figure 9-12 Handling process for the no-current power-on failure

9.2.5 Charging Failure

Circuit Diagram
Figure 9-13 shows the charging circuit.
Issue 1.2 (2012-6-30)
After the phone is connected to a USB
charger or fake battery, and the Power
key is pressed, no current is detected.
Is the Power key FPC in
good condition?
Y
Is the battery
connector in good
condition?
Y
Is Q1901in
good condition?
Y
Resolder or replace U901.
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N
Fasten or replace the FPC.
N
Resolder or replace the battery
connector.
N
Resolder or replace
Q1901.
9 Troubleshooting
48