Samsung SM-A507FN Service Manual page 88

8. Level 3 Repair
8-4-12. BT/WIFI
BT/WIFI is not working
Check BT or WIFI function ON
Check the status of U3001
Check the voltage
C3005 = 1.2v
C3006 = 1.8v,
C3011 = 1.8v,
C3023 = 1.8v,
C3030 = 1.1v,
C3035 = 3.3v
heck the Status of L3000, C3015,
C
C3008, C3016, C3017, C3009,
U3001
Resolder or change U3005
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Yes
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END
No
Enable BT or WIFI function.
No
Resolder or change the
No
No
Resolder or Replace of
L3000, C3015, C3008, C3016, C3017,
U3001, REAR
Replace of
U5000
C3009, U3001