Recently purchased a google pixel 8 and installed grapheneos and love everything about it! However I have one kind of major hiccup. I am unable to send or receive any MMS texts whether it's a group message or simply an image/file. I've combed through the forums and the web with no success. SMS however does work just fine and I am able to access the internet via cellular service alone.
** Device **
Phone: Google Pixel 8
Cell Provider: Tracfone Prepaid (Bring your own device with new sim card)
The Problem:
All MMS messages fail. Whether it's me sending them or receiving them. When sending I get inconsistent results. It either hangs on "Sending" or says fail to send. When receiving an MMS I get "Unable to download, file expired". Messages never get through regardless.
What I've Tried:
I have tried to manually and automatically update the APN settings. Tracfone has an automated tool to grab APN details so I also tried that.
I've tried all three of Tracfone's default APN settings found via the web.
I have enabled / disabled google RCS chats.
I have reset both wifi and cellular interfaces.
I have tried all of this with the stock messenger MMS settings set to "single" or "group" MMS.
I have also tried several open source / proprietary messaging clients (Stock, Quik, Fossify, Google Messages)
Lastly I have ensured that my number is not registered with Apple Messages or Google RCS via their web tools.