Fingerprint Sensor Does Not Work - Samsung SM-A920F Service Manual

8. Level 3 Repair
8-4-8-4. Fingerprint Sensor

Fingerprint Sensor does not work

Check the Fingerprint Sensor
connector on Main PBA
Check the voltage
C3091 = 3.3V
C3092 = 1.8V
Check the Fingerprint Sensor
MISO, MOSI, CLK, CS_N Pins
(SPI is OK?)
Replace the Fingerprint sensor module
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Yes
Yes
Yes
Yes
Yes
END
No
Reconnect the HDC3001
No
No
Replace U3017
Replace UCP4000