Hi, I have a strange problem. My Android phone has stopped receiving text messages from only one person. Everything was working all right until a few days ago when I didn't receive a text from a friend. The friend has an iPhone and he even turned off iMessages (what I don't think so was an issues as like I said before he had it turn on when we were texting). I restarted a phone, did an update, nothing helped. Any idea what can it be? How to solve the problem? I pretty much can receive text messages from other people without a problem. Thanks!