What are your mobile network APN settings?
| Step | Action | What It Fixes |
|---|---|---|
| 1 | Check your network status | Confirms if issue is network-wide |
| 2 | Toggle aeroplane mode on/off | Re-registers SIM on your network |
| 3 | Restart your phone | Clears temporary network errors |
| 4 | Check your network APN settings | Fixes incorrect data configuration |
| 5 | Re-insert SIM card | Fixes poor SIM contact issues |
| 6 | Contact your network support | Resolves account or SIM faults |
APN stands for Access Point Name. It is a configuration string your phone uses to connect to your mobile network mobile network for internet data, MMS picture messages and mobile hotspot. Without the correct your mobile network APN settings, your SIM card may connect to the network but fail to load web pages or send picture messages.
This guide covers the recommended your mobile network APN values for Android and iPhone, including the APN name, username, password, MMSC, MMS proxy and port fields. If your device is showing mobile data connected but no internet, checking the APN configuration is one of the first steps to take.
How to find APN settings on Android (APN Settings Not Saving)
For Android 10 and up, open Settings → Network & Internet (or Connections on Samsung) → Mobile Network → Access Point Names to manage APNs.
The Samsung route is Settings → Connections → Mobile Networks → Access Point Names, and Xiaomi/Redmi use Settings → SIM cards & Mobile Networks → Access Point Names.
Troubleshooting checklist
Locating the APN settings on Android and entering each value
How to find APN settings on iPhone (APN Settings Not Saving)
On iPhone with iOS 16 or later, go to Settings → Mobile Data → Mobile Data Network. If this option does not appear, your carrier may push APN settings automatically. You can also reset your network settings at Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings, which will restore the default your mobile network APN configuration.
Note: On newer iPhones using carrier bundles, the APN field may be greyed out. In this case, contact your mobile network support to update your carrier settings profile.
Troubleshooting checklist
The iOS path to APN settings, and why some fields lock
Recommended your mobile network APN settings
The values below belong in the APN settings screen — leave out fields not listed. Save, reboot, and pick the new profile.
Troubleshooting checklist
Android's APN screen — where to find it and what to enter
Troubleshooting your mobile network APN issues
If mobile data still does not work after entering your mobile network APN settings, try the following steps in order:
1. Toggle aeroplane mode. Turn aeroplane mode on for ten seconds, then turn it off. This forces your phone to reconnect to your mobile network and re-register the APN profile.
2. A complete restart resolves temporary faults and activates the new APN.
3. Rebuild the profile. Delete the APN entry and re-type it from scratch — a single wrong character in the name or MMSC field is enough to break data.
4. Reset all network settings. On Android: Settings → General Management → Reset → Reset Network Settings. On iPhone: Settings → General → Reset → Reset Network Settings. This clears all saved Wi-Fi passwords, Bluetooth pairings and APN settings, then restores your mobile network defaults.
5. Check your mobile network account. Make sure your SIM is activated, your account is active and you have not exceeded your data allowance. Visit the UK APN Hub or call your mobile network customer services.
Troubleshooting checklist
The progression matters — each step assumes earlier ones were tried
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
APN settings for MMS on your mobile network
Picture messaging uses its own MMSC, MMS proxy and MMS port fields within the APN profile. If MMS won't send or download, those are the first things to check — a few Android phones need a dedicated MMS APN entry separate from the main one.
MMS setup checklist
The MMSC only accepts http://; swapping in https:// is a frequent reason MMS breaks
Frequently Asked Questions About APN Settings Not Saving
Will changing APN settings delete anything?
No — this setting only controls data and picture messaging, leaving everything else alone, and it can be reset whenever needed.
Do I need to enter APN settings on an eSIM?
In most cases, eSIM profiles include the correct APN settings automatically. However, if mobile data is not working on your mobile network eSIM, you may need to enter the APN values manually using the same steps above.
Why is my your mobile network APN greyed out?
Some network operators lock the APN field on specific devices or SIM types. If the APN is greyed out on Android, try going to Settings → Network & Internet → Mobile Network and looking for an option to reset APNs. On iPhone, a greyed-out APN field means the carrier is controlling the setting via a carrier bundle — contact your mobile network to request an APN update.