No, but I am a dealer. Make sure you are selecting the APN after you put it in too. Actually you should probably call them, you used to be able to just put in a single APN, but the last time I had to put in two different ones, which makes absolutely no sense since you can only be using one of them. If this doesn't work, give them a call...
Name: H2O Wireless (or whatever you want, really)
MMS Proxy: 188.8.131.52
MMS Proxy Port: 80
Make sure you hit menu - save, then select that APN. Do not put any other settings in or change anything else.
Sent from my HTC6525LVW using XDA Premium 4 mobile app