Is there a way to send pictures with a Verizon phone on the ATT network?

[Android Central Question]

I have an unlocked Verizon LGv20 and am using ATT. I finally got it set up and can use both mobile data and text/call (it took a lot longer than I anticipated).

My problem is I can't attach pictures in MMS. Is this going to be impossible or is this as simple as changing a setting?

Thanks for any help. I am about ready to give it up and sell it and go back to an unlocked ATT phone.

 

[Rukbat]

You have to change the APN to the AT&T APN. (If you can't edit it, you add a new one [name it AT&T, so you don't confuse yourself - the name is only for your use] and set it to the AT&T values, then switch to using that one.)

Name AT&T
APN NXTGENPHONE
Proxy Leave blank
Port Leave blank
Username Leave blank
Password Leave blank
Server Leave blank
MMSC http://mmsc.mobile.att.net
MMS proxy proxy.mobile.att.net
MMS port 80
MCC 310
MNC 410
Authentication Type Leave blank
APN type default,mms,supl,hipri
APN protocol IPv4
Bearer Leave blank

Note - in APN type, there are no spaces, just commas. It won't work with spaces.