Hello - I got a new iPhone 6s plus today. Set it up as a new phone, everything is great, except messages. I can send text messages out, but absolutely no iMessages. They don't sync with my mbp, or iPad. The mpb, iPad, and old iPhone 6plus do all sync iMessages (though they can't send regular sms texts of course). I've tried anything I could find from searching the web. I'm not sure why my other 3 devices are all playing nice and the new phone won't. My old phone was also on 9.0.1. In settings, messages, it says iMessage is waiting for activation. When I try to click "use your apple id for iMessage" it freezes. I think it was working for a minute, but then it took my cell phone number away, and didn't allow the code to be sent to my mbp. I have signed in and out of everything, restarted, wiped... super frustrated here. I apologize if there is another thread about this, I didn't find it. Thanks for any assistance!