Currently Being ModeratedMar 4, 2013 8:08 PM (in response to p0l4rchris)
The same thing was happening to me so i rebooted my phone. Just hold the lock and home button down until the screen goes blank. Keep holding until the apple logo appears and voila erythings all good.Preferences§1234567890-=BackspaceTabqwertyuiopReturncapslockasdfghjkl;'\shift`zxcvbnm,./shiftaltaltPreferences
Currently Being ModeratedApr 18, 2013 8:25 AM (in response to p0l4rchris)
I don't know if this is the problem in the previous cases, but there is also a "Repeat Alert" for Messages (under Notifications). Mine was set at "1", so I was getting a repeat of every notification. I switched it to None and now I get only 1 alert.
Currently Being ModeratedMay 3, 2013 11:13 AM (in response to stephen.bradley)
My repeat was set to NEVER, so that wasn't the problem. Contrary to posts in this thread, this is a bug.
The procedure liste worked for me (we'll see for how long), thanks.
Currently Being ModeratedOct 30, 2013 8:30 PM (in response to stephen.bradley)
lephunk was in the right area and I am sure it has changed due to new iOS but go to
Settings -> Notifications Center> Messages, scroll down to Repeat Alerts and select Never
Currently Being ModeratedNov 20, 2013 7:56 AM (in response to p0l4rchris)
I am having the same issue but at least i understand whats wrong finally.
Look at the imessage as it appears in your text screen. it says "imessage". then.... (and heres the genius part) Look at the duplicate message underneath. do you notice the difference. it says "Message". (text message)
What this indicates is that it is NOT your phone issue. The senders/receivers phone is in a poor cellular coverage area. When this imessage thinks it is not being received it is resent as a text message. resulting in 2 identical messages appearing on your phone. Poor coverage on your receiving end results in the same result.
You will find some inbound friends messages are duplicating more than others.and other times, not at all. it fluctuates because 3G/ Edge coverage either on yours or your senders end has been compromised.
If both sender and receiver are on WIFI, no problems occur and message is not duplicated. Unfortunately it cannot be helped as it is not a phone issue rather a cellular network issue. Try the WIFI test and let me know.