phones brought from N America have to be unlocked in order to use in Jamaica......
put a foreign sim(sim other than the carrier that you use) in the phone.....
and if it ask for a code or doesn't work with that sim....then you need to unlock it
you can get the codes off the internet for pretty cheap money.....
for Lollipop and Marshmallow Androids.....also make sure the phone is not google locked(remove the google account from da phone) in case you give it to somebody......
otherwise they won't be able to use Facebook, WhatsApp, etc on da phone.....
Cool Runnings, Marko