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MX8550
1
YES
Check the voltage at pin
CON403 Whether its range is
1.65~2.1V
YES
Check the voltage at R 425
Whether its state is low
YES
4
LG Electronics Inc.
Checking Flow: Headset detect problem
Checking Flow: Headset detect problem
2 of
Check the soldering of U 303
NO
Resolder U 303 with heat gun
NO
YES
Redownload S / W
Replace U303
NO
- 109/148
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