Samsung SGH-L770 Service Manual page 42

Flow Chart of Troubleshooting
Power on dose not work
Using jig box, Power on works well
Check Current Consumption
Re-download
≥ 150mA ?
Check PWR_ON(R408) signal Con_to_con FPCB connection,
during pressign the end key <Board/LCD (Reassemble)
Battery connector contact is poor,
Be pressed battery connector contact
(insert tweezers into bat connector and pull up
10-2
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