Talk:Mexico/@comment-198.103.184.76-20180126154757/@comment-24682153-20180127045134

Yes, SIM cards do expire after a certain time of not using (or reloasing) them. You should try when in Mexico whether it still connects to the Telcel network. If not, it's dead and you need to buy a new chip. It it still connects you'll have the chance to use it again.

This grace period varies from provider to provider, but is usually only a few months in Latin America.