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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
Unofficial Support Site For This Phone By Welcome Zone Haldwani
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