Just came back from a 10 day trip to Sinapore. Flew from GOT-ARN-DOH-SIN-DOH (8 hour connection)-ARN-GOT. Rec'd multiple updates via SMS and email. Status was always good. Just remember to shut it down when U leave the airport. I had no troubles or worries. Used them to HKG via DOH as well. Going to the USA via LHR with no problems as well. Love this product. Can't U tell 😜