Originally Posted by jonstrong

Interesting - When you have LTE disabled, do you have still have phone network service enabled? Very possible your phone is sending the MMS via CDMA -- that might explain your 3rd scenario in the list above (wifi on, LTE off).

Yes, I left the "Data Enabled" box checked throughout. I was just switching between the "Network Mode" options to see if there was any correlation between LTE and wifi. Also, I edited my post after I rebooted and had a successful delivery.

Originally Posted by jonstrong

Re: not being sure that you receive incoming MMS - yes - that's another byproduct of this silly state of affairs. If MMS can only send/rcv via your mobile network, and mobile data is off whenever WiFi data is on (but momentarily switched off when the phone temporarily switches to mobile data to send your MMS), your phone won't know when to switch from wifi data to mobile data in order to learn about incoming MMS messages.

Sad and frustrating state of affairs! Easily addressed if the carriers really cared to...

I hear you. My Driod X could do it just fine though! I think I might have mentioned this already, but if it were possible to send MMS through wifi I would be a T-Mobile customer right now. They don't have coverage in my area and the data roaming agreement that they have did not let me send or receive MMS. Most of their phones had a wifi app that would let them use wifi for MMS, but that app is not available for the Nexus 4...

big party irc, 5.3 about to be relased, need 25 people. Hurry