LG LG-E960 - NFC Troubleshooting

4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
4.21 NFC Troubleshooting
Check out the setting menu on the phone. If not, check Test points shown on the pictures.
Check Ref ClKsignal
XTAL_XOP/XON (Pin26)
Check 2.5V-5.5V to
VBATT(Pin26)
Check VDDIO (Pin13)&
Drive REG_PU (Pin25) to VDDIO?
Check VDD_EN(Pin32) 1.8V min?
START
Re-download SW or
BCM20793 chip FW update
Check Coupled Tx signal
Check NFC Antenna