starting with the usuals.
are you able to hop on the browser? if you are is it pretty slow loading things or as quick as usual? pics and videos sent through text is sent by using data. if you have low data speeds this will affect it horribly.
also are you on wifi when youre sending pics/videos or is this everywhere? 3G?4G?
If it is happening on all connections I have to assume it is an issue at the handset. Are you using the stock SMS client or a 3rd party like Go SMS Pro? If third party attempt the same send in the stock and see if you have the same issue. If already stock I would have one of our tech support folks check it out at your closest retail location. Here is the URL that will provide locations:
I can provide assistance as well if that would be more convenient, just send me a private message and let me know.
epic4guser28-Sorry for the inconvenience.I would suggest you TO change camera settings( resolution-1m/quality-fine), take a picture and try to send.Other option would be is to send picture and videos via email.Let me know