How to resolve "Video too large" error message with MMS video attachment I have a short mp4 video clip of an old cartoon I keep on my phone and occasionally send via MMS.  The video is only 5 seconds long, 480x360, the video file size is 204kB.  I sent this video file dozens of times using the default messaging app on a T-mobile Android 4.1.1 Prism II without error.

I now have a T-mobile Adroid 5.1.1 LG Leon and this phone refuses to send the video file via MMS using the default messaging app.  When I try to attach the file, the LG Leon responds "video too large."

Note that is NOT an attachment file size limitation.  The MMS attachment file size limit on this phone is 1024kB.  The video file I am trying to attach is only 204kB.  The error message for exceeding the attachment size limit is "attachment size limit exceeded."  That is NOT the error message I'm getting.  I'm getting "Video too large." 

I tried reformatting the video: AVI, 3gp, MOV, lower resolution, different bit rates, The LG Leon refuses to attach the video file to an MMS message.  

Any ideas?
Try resolution of 320 by 240.
It is what works on my Leon.

Also... Try this...
Start a message.
Click attach.
Click from camera.
Shoot a short 10 second video.
Send the video.
Then examine the video's details ...you will see it is 320 by 240
Best regards. Hutch.