I tried posting this on the iPhone forum but didnt find the answer, so Im hoping that maybe someone here has an idea. My son has an iPhone 3GS jailbroken running 6.1. Imessage was working just fine until mid June then for what ever reason he lost wifi connection. I was able to get that going again but I can't get imessage to activate. I've tried doing a hard reset several times, resetting network connections but no luck. He hasn't downloaded anything new from cydia in several months now so that wouldn't be the issue either. I did read that apple had some kind of issue with imessage in June so maybe it's related to that? Thanks for any ideas.
Hi! I don't have an iPhone, also my iPad isn't jailbroken.
Just to let you know: what I'm going to suggest is something I found in the internet, not my own experience.
This seems to be a common issue, there were quite a few sites with that subject. Perhaps there's the solution for your problem somewhere:
Make sure that time and date are correct. (You certainly know where to search that.) If it is - slide it off for some time, then on again.
In "Contacts" make sure the phone number is listed (My Number).
Go to your Apple ID (is there one in iMessage on the iPhone?), sign out and then in again.
I even found once, simply to ignore the message (waiting ...) and try sending an SMS.
Last option I found, and I know you want to avoid it: Restore.
I'm sure when you search for a solution yourself, you'll find something I forgot to mention. Good luck with solving your issue!