O2 APN Settings on OnePlus
O2 APN settings on OnePlus control how your device connects to O2's mobile data network. If you cannot browse, stream or use apps on O2, incorrect APN values are the most likely cause. This guide gives you the exact O2 APN details and the precise steps to enter them on your OnePlus.
- Quick checks
- Enter APN settings
- APN reference table
- Common causes
- Frequently asked questions
How to Set O2 APN on OnePlus
Go to Settings → Wi-Fi & network → SIM & network → Mobile data and ensure the toggle is enabled. Mobile data must be active before APN settings take effect on O2.
Navigate to Settings → Wi-Fi & network → SIM & network → Access point names. You will see a list of existing APN profiles.
Tap each existing APN profile and delete entries that do not match O2 official values. Outdated profiles cause conflicts.
Tap the + or Add icon to create a new entry. Enter the following O2 APN values exactly as shown — including correct capitalisation.
In the APN field type exactly: mobile.o2.co.uk. This is the gateway address O2 uses for all mobile data traffic.
Enter MMSC: http://mmsc.mms.o2.co.uk:8002/ — this is required for picture messages to send and receive on O2.
Tap Save (or the overflow menu → Save). Tap the radio button next to your new O2 profile to select it as active.
Open a browser and navigate to a website. If pages load, your O2 APN is configured correctly.
O2 APN Settings Reference
| Setting | Value |
|---|---|
| APN | mobile.o2.co.uk |
| MMSC | http://mmsc.mms.o2.co.uk:8002/ |
| MMS Proxy | 193.113.200.195 |
| MMS Port | 8080 |
| Username | o2web |
| Password | password |
| MCC | 234 |
| MNC | 10 |
| APN Type | default,supl,mms |
| APN Protocol | IPv4/IPv6 |
Common Causes of This Issue on O2
| Cause | Likelihood | Fix |
|---|---|---|
| Wrong APN value | High | Enter exact APN: see table above |
| Incorrect MMSC | Medium | Update MMSC in APN profile |
| Profile not selected | High | Tap the radio button next to the new profile |
Frequently Asked Questions
What is the O2 APN name?
The O2 APN is mobile.o2.co.uk. This is the exact value to enter in the APN field on your OnePlus. On some devices the field is case-sensitive — enter it exactly as shown in lowercase.
Do I need a username and password for O2 APN?
For O2, the username is o2web and password is password. If your device shows Authentication Type, set it to PAP or CHAP. Leave blank if your device does not require it.
Why did my O2 APN settings disappear?
APN settings can be cleared by a factory reset, a network settings reset, or a carrier update that pushes default profiles. They can also be overwritten if another app modifies network settings. Re-enter O2 APN values manually after any reset.
Still having trouble? Contact O2 support on 202 (free from O2) or visit our contact page for further help.