MMS messages not sending/receiving

[aibd]

@hellocat

up to date because that is how the service providers update their APN

I do not know if this is documented about “Google original” phones but I believe there are google helpers to do this on the fly; however AOSP relies on apns-conf.xml where I do not see Tello listed. This means that your save of APN will be critical. You must Save successfully, then you must go back and Select your new Entry.

Save of APN can be difficult. I think the Tello Troubleshooting Tips link covers all the bases, every item in their list must be “exact”.

@aibd

This link demonstrates the method to add APN Solved! “Access Point Name settings are not available for this user” – Terence Eden’s Blog .

I would add that you need to have a good Wi-Fi connection at the time, as I believe the APN will be checked as you Save it (and may be lost if it fails to connect). You have to be very accurate that every line is an exact match with that published by your carrier.

An alternative is to ask the carrier to apply an “APN reset” OTA.