Message not sent notification

[Deeeeejay]

So my oneplus one hasn't had too many problems, but just today I've gotten this "message not sent" notification, and I can't take it off. It's actually really really annoying.

I've tried doing some googling, and have come across a few different articles that mention the same solution.

(http://geekiest.net/post/How-to-Remove-Message-Not-Sent-notification-on-Android.aspx ) (http://androidforums.com/threads/repeated-erroneous-message-not-sent-notification.850088/ )

But nothing is working for me. I'm actually unable to download Handcent to be honest. It's not on the appstore, and when i try to download it from the website directly, it doesn't let me open the actual app (yes, i've disabled the security option) I'm hoping someone can help me out with this, because this is getting really really annoying, and I don't really know what else to do?

 

[mrex]

1. any help from this article? wiki.cyanogenmod.org/w/SMSC_Updates
2. tried reconfiguring settings for messages (carrier specific)?
3. tried another app like Messenger (https://play.google.com/store/apps/details?id=com.google.android.apps.messaging&hl=en)?