If you’re a Facebook user, you can view archived messages on Messenger for iPhone. This feature is available in the “Message” section of your Facebook account. To use this feature, you must be logged in to your account and have your phone unlocked. To view archived messages on Messenger for iPhone, open the app and select “Message.” In the “Message” section, you’ll see a list of all of your messages from Facebook. You can scroll through these messages or click on one to view it in full-screen mode. If you’ve received an archived message from someone on Messenger for iPhone, you can open it and read it by selecting “Open Message.” If the message is unread or if it’s been deleted by Facebook, it won’t be visible in this list.