Default [Q] Casio Commando 4G-LTE Locked APN Settings

Hello, I'm having trouble with a Casio Commando 4G LTE.
I'm trying to get it to work with H2O Wireless, it was working until my dad did a factory reset on it.
I can't remember how I got it to work, I've tried changing the APN settings, but when I click the three menu dots, it only comes up with a Restore to Default button, which does nothing. I can't add or change APN settings, not with tweaker, H2O Config, or any other APN app.
Talk and Text works, but I can't get any data whatsoever.
I've been trying to fix this for a month, and I've been going crazy.
Thanks for any help.