Samsung SM-A507FN Service Manual page 77

8. Level 3 Repair
8-4-6. Cable Charging Part
Insert TA / USB
Charging Sequence Start
VBUS_IF_5P0(C9030) = 5V or 9V
Check the
VBUS_IF_5V0(C6053)=5V or 9V
Battery is Charging?
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Yes
Yes
Yes
Yes
END
No
No
No
Replace SUB PBA
Replace U6002
Replace U5005