I have made a custom PCB board with an NXQ1TXH5. Wireless charging is working, however at quite low current being supplied to the receiver coil. Investigating the board shows that CNF_IN goes between VDD (~5V rail) and 0V, even though the resistor network is present and should work as a potential divider.
I have been following the app note AN117755 and have varied the resistance values of CNF1-4 which has resulted in absolutely no change in the response of CNF_IN. It continues to pulse to 0V from VDD every ~3secs.
As a result I cannot set the LED Mode and therefore have both Red and Green floating. Anyone seen these issues before on CNF_IN and/or LED Red/Green?