Originally Posted by
timlewis808
Tried using that App and it can't read it. I think the chip has gone. It's annoying. I think from reading the Global Entry docs that I can just log in to portal somewhere and change my passport number so might consider applying for a new replacement passport. For the US and non-Europe/UK it's fine as a human check it's just the gates it doesn't work with now...
It is worth trying the app on another passport to make sure it is working. It is best to take your phone out of any case as the NFC sensor has to be very close to the passport chip. Having said that, a dead chip would explain why you passport stopped working in Italy too.