A:AnswerThese have been my favorite ear buds and I have tried a lot of them.. They should work with that phone and once you upgrade then they should work with that phone as long as it is an android..
A:AnswerUse your "Samsung things" app to find it next time ..... it's too late to find the single earbud you lost now, since it will be out of charge, but the app will locate the L and R earbuds separately if you know how to use it.
A:AnswerYes, if you trade them inside the store they'll give you a gift card with the value of the AirPods, if you do it online they'll refund you for the amount after the trade-in is verified.