How to use Facebook Messenger screen sharing on your phone Open the Messenger app on your iPhone or Android. Start a video call by selecting one or more contacts and tapping the camera icon.

Fix Facebook Messenger App That Keeps Crashing On Your iPhone And Android Device One of the issue you will experience when using the messenger app is the Facebook Messenger application crashing issue.

Thankfully, it's pretty easy to use Facebook Messenger without going all in on the social network. Here's how to use Messenger without a Facebook account.