none of their iPhone friends could reach them ... system that most phones use for basic messaging. So you have to disable iMessage BEFORE you switch phones — otherwise other iPhones will ...

In addition to AirDrop, iMessage is one of Apple's most ... to know that you've read their messages, you can turn off read receipts on your iPhone. Here's how to do it in just three quick steps.

If this is the case, you'll want to turn off iMessage and only use MMS or SMS. Here's how to make sure MMS is enabled on your iPhone. Again, this is usually turned on by default but if ...