Samsung SM-G975F Service Manual page 84

8. Level 3 Repair
8-4-6-1. Cable Charging Part (Normal/Fast)
Insert TA / USB
Charging Sequence Start
VBUS_IF_5P0(L9013) = 5V or 9V
CHG_IN_5P0(C9063)=5V or 9V
Battery is Charging?
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Yes
Check the
Yes
Yes
END
Yes
No
No
No
Replace TA/USB
Replace U9002
Replace U8031