How to change APN?
I recently bought a SIM card from Mobal (a Japanese data company) since I'm going abroad in a couple days, and when I downloaded the APN settings while checking out/activating that card, my ATT one now doesn't seem to want to work anymore. I've got full bars and I can call people (not text) but it wont connect to the internet unless I'm on Wi-Fi.
I've gone thru multiple days of replacing my ATT SIM card (haven't put in Mobal card since issue began) and spending hours on end with ATT support, but the one thing I haven't tried out yet is changing my APN. When messing with the Mobal card, it had me download APN settings, and I thought that both the Mobal and ATT card settings would work simultaneously, but I have a theory that my phone is stuck on the Mobal settings (which are based in Japan and not the US).
However, my cellular settings don't give me the option of changing any APN settings, even though my phone (iPhone 11) from what I've read online says I should be able to do so. Is anyone able to help me out with changing these settings from the Mobal card settings to the ATT ones?