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8. Level 3 Repair
8-4-8-9. Fingerprint Sensor
Check the voltage
C12030, C12031 = above 3.4V
C12043 = 1.8V
END
Yes
No
Yes
No
Check L12010
Replace U12002
Fingerprint Sensor does not work
Yes
No
No
Check the Dispaly connector
on Main PBA
Yes
No
No
No
Yes
No
Reconnect the HDC12000
Replace UCP5000
Replace the UB module
Check the Fingerprint Sensor
MISO, MOSI, CLK, CS_N Pins
(SPI is OK?)