Samsung galaxy S4 I9500 NFC Signal Not Working Solution

Samsung galaxy S4 I9500 NFC Signal Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500 NFC Signal Not Working Solution Step by Step

Step 1

NFC is not working

Step 2

Check the Battery

(NFC Antenna is in Battery)

Check the battery

(antenna/contact crack, open, damaged)

Step 3

Check the Voltage on

NFC_EN, NFC_IRQ

goes high

Check the TP839, TP842

Step 4

Check 26.00MHz Clock which

is OSC801 with C868

Check the OSC801(crack, open, etc.)

Step 5

Check the Voltage on

C868(VBAT), C882(1.8V) goes

high

Resolder or Replace U800

Step 6

END

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