Airlines and aviation regulators quickly started banning the use of the Galaxy Note 7 on planes once Samsung confirmed the battery cell defect and issued a recall. It made absolute sense since the handset was a fire hazard and you can't have that on a plane, particularly not in the cargo compartments. Now that Samsung is swapping out unsafe units for safe ones, the regulators are allowing the handset's use again.
The transport ministry of South Korea has said that passengers who have exchanged their Galaxy Note 7 for a safe unit will now be able to use their handsets on planes. Airlines operating in the country have been told to look at the battery indicators to ascertain whether a passenger is carrying a safe or unsafe Galaxy Note 7. As you may be aware by now, safe Galaxy Note 7 units feature a green battery indicator. We have yet to see a similar relaxation from the Federal Aviation Administration which also issued a ban on in-flight use of the Galaxy Note 7, it's likely that it may soon make it okay for passengers to use their safe Galaxy Note 7s onboard airplanes.