Is the imessage of iphone6 always waiting for activation?

1. Just restore the settings, Settings-General-Restore-Restore all settings.

2. If wifi is connected, you can turn off the wireless network for a few minutes, then turn on wifi, and then activate imessage. If it doesn't work, please restore the network settings. Remember that opening an imessage phone must be successful when there is a network.

3.iMessage is different from SMS/MMS service of operators. Users only need the data support of WiFi or 3G network to complete communication. IMessage uses the new message reminder system of iOS and Mac os to directly push information to the other party's screen, regardless of whether the other party is in the game or locked. If both parties are using iMessage, you can even see the state of each other's speech.