Blackberry 8520 SMS reported an error! Help! thank you

1. First, make sure your operation is wrong. Open the blackberry function key, select options, enter options to select SMS, open the internal transmission report, save and exit.

2. Send two messages and try to see if there is a "D" on the basis of tick. If you don't show your friend the "D" clockwork message, see if he can receive it.

3。 If you can receive it, you can conclude that it is your mobile phone problem, but it doesn't matter if it is a small matter. All important things can be solved by telephone.

4. If you can't get it, call the customer hotline 10086 and tell him that the message you sent can't be received by others, which is the problem of the mobile operator. He will take care of it for you.

I hope it helps you.