Started yesterday. Rebooted the phone, downloaded VZW messaging app (to replace LG app), cleared caches... Everything short of a factory reset. Still nothing... Error message "file size has exceeded limit" (or something close to that). I finally broke down and called VZW and the first rep had me do everything that I had already done, with negative results. Thy put me on with a Tier-2 rep who immediately said that it is a known issue on LG's end since the KitKat update and to expect a fix "sometime in September". I said that wasn't acceptable and would like to know why the initial rep wasn't aware of this known issue. Even though the phone is ubder warranty, having a replacemement sent wouldnt fix the issue. I requested to speak to a manager, for which I was put on hold. When the manager eventually pick the call up, she recommended a warranty replacement from LG. I disagreed and she urged me to consider a CLNR device from VZW now. When I told her she contradicted the previous reps recommendation, she told me I was eleligible for an upgrade and began to analyze my current plan. I asked her why I would accept a used CLNR replacement that would likely suffer the same issue, since its a KNOWN issue? Her response was that " hopefully the replacement wouldn't have the KitKat update". In the end, there was no resolution. I still can't send or receive MMS. I did get a computer generated survey which I gave them all zeros/extremely unhappy. I'll wait for a follow up call and don't want to make a decision based on frustration.