IPhone not registered with iMessage?

So I updated my iPhone earlier today but this might not have anything to do with updating. My iPhone is apparently not registered with iMessage? It always has been but when I tried to send a reminder to my phone from my iPad using my I message (w/ email address) it said my number wasn't registered with iMessage… Help?

See some discussion from here: https://discussions.apple.com/...0&tstart=0

  • My iphone is disabled because my udid is not registered? When ios 7 beta first came out i bought a link to a developers account so i could have it. I didn't know that you had to fully upgrade to the computer to upgrade to official release. My registration just ran out so i can't use my phone. I tried to restore it on my computer but it said i needed to turn of find my iphone, I do not know how to turn that off.
  • Just Registered my UDID so does that mean my iPhone can't get bricked? Just registered my UDID but i do not have a dev account. Does this mean I can update through all the Beta's and Apple will not brick me? And when the final version is released I can upgrade right to that also?
  • Is Updating to ios 7 beta 2 from beta 1 without udid registered via OTA is safe? I have iphone 4 i installed ios 7 beta 1 from ipsw file via itunes (shift+update) button and now my software tab i showing beta 2 update. But i'm not developer and i did'nt even registered my udid. so updating via OTA will be risky? will my iphone brick? what to do? will it ask for developer account after update? People who already attempted this please tell me is it safe?
  • Is it safe to update to iOS 7 beta 5 ota without a registered udid? IPhone 5 running iOS 7 beta 4. I used the ota method when I updated to beta 4, just wanting to make sure its still safe because I no longer have a usb cord =/ .