Huawei
Delete a Saved APN on Huawei auf Huawei
An Access Point Name tells your Huawei phone how to reach your carrier's mobile data network. EMUI stores these entries under the mobile network settings, and a single wrong character in the APN, username, or proxy field is enough to break data, MMS, or both.
This usually happens after switching SIM cards, changing carriers, or entering a manual APN from an outdated guide. The old or broken entry stays selected even though it no longer matches your current provider, so the phone keeps trying to connect through the wrong profile.
Deleting the faulty APN removes that conflict. Once it's gone, EMUI can either fall back to the carrier's default profile or let you add a corrected one from scratch.
To remove it: Open the Settings ➔ Tap on Mobile network ➔ Tap on Mobile data ➔ Tap on Access Point Names (APNs) ➔ Open the menu ➔ Tap on Delete APN.
If mobile data still fails afterward, the issue may sit elsewhere, for example a disabled data toggle, airplane mode, or a SIM that needs reinserting. In that case, deleting the APN alone won't help and you should check those settings first before adding a new access point.