Okay so uh, I have had my Nokia N95 8GB since 2009. In the beginning, I didn't have any problem with it. But now, it tells me the same error every time I try to send a message. I have taken my phone for repair for AT LEAST 4 times. After repair, it would be ok for some time. After a week or 2, though, I get the same error again. Please help 
I can't send messages on my phone
I can't send messages on my phone