Originally Posted by
newyorkgeorge
Unless I'm short on time I always get a kiosk printed BP for TSA. Seen too many people turned back to kiosks because IPhone BP can't be read.
When that occurs, it is
always due to the screen brightness being too low. That's why the Apple Wallet (Passbook prior to iOS 9) app automatically turns the brightness to maximum when the app is opened. Passengers should generally use that BP instead of the one generated by the airline app.