I began a line of investigation because I received a data charge when I don't use data. I understand now why receiving an MMS got the data charge, but I don't understand what the data charge is for because I couldn't view any MMS content.
In the form of a two-part question:
1 What's the charge for if there is no data?
2 Why can't I view MMS data?
I think I understand the entire MMS game plan now, wifi not involved in this case; receiving an MMS where I didn't realize the icon was different from SMS and MMS opens default WAP player. At that point, a blank screen and nothing to do but return to the message list screen. Is it possible I'm human-erroring some critical point at the blank screen?
I checked the manual for my SCH-U410X, Samsung semi-dumb flipfone, which says I can send/receive MMS, to paraphrase. I also checked my phone settings which claim MMS auto-download is off. I leave data on in the rare case I may want to use it. It would seem that selecting a message is all it takes to manually download MMS content, overriding the auto-download, but if the screen is blank, how would I ever know if any content existed? Are there extensions of the MMS standard that have outpaced older or dumber phones, if the MMS is from a new smartphone?
Bonus related question: do MMS messages without content other than text still send a handset running to the server to check on non-existant content, generating a data charge for that alone? This was just a text address forwarded to me, from a person with an iPhone, and I have no idea what the MMS content could have been. Do MMS defaults send out something ubuiquitous but pointless, invisible to recent cell phone users even if all they do is text "sup".