EDGE U0-6 Simplified Maintenance Manual
10 Troubleshooting
Issue 1.0 (2013-01-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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10.11 Touchscreen Failure
When a touchscreen failure occurs, the LCD display is normal but you cannot unlock the
screen.
The TP assembly has a great independence and multiplex power supply and communication
interfaces with other circuits. Therefore, you can replace the front cover to identify whether
the failure is a touchscreen failure or a PCBA-related circuit failure.