My mms messages do not send on my curve 8520, they try to send for a long time then show it failed to send, i tried sending to myself and that did not work
This could only be caused by a couple of things. The message center number in the handset may not be correct, which will cause the messages to fail. The other possibility is that the feature is not active on your account with your wireless provider. What you need to do is test a couple of things. See if you can send a text/sms message to yourself, in doing this you can verify that you can not only send, but receive text/sms messages. If you cannot send, or receive text/sms messages, then that verifies that the message/service center number is off, and will need to be corrected. If that works, and you can receive text/sms messages, then your service center number is correct, and you will move to the next troubleshooting step, which is to test your web browser. If you cannot launch the web browser on your handset, then this is an issue, because the MMS service requires that you have both SMS, and web browser service to send a MMS message. If you can access the internet and you have the ability to send/receive text/sms, then you need to call your service provider as the issue may be with their service.