Currently unable to download.

[mamabile]

Check your messages for any MMS that have NOT been downloaded ... just download the MMS messages even if expired and this fixed my problem.

 

[Ian Mitchell4]

Check your messages for any MMS that have NOT been downloaded ... just download the MMS messages even if expired and this fixed my problem.

I had same problem and tried all the cures in this and several other threads and YouTube.
Although my WiFi was working I switched it off and switched on Mobile Data and the MMS downloaded!!!
Don't know why but it worked for me!