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O2 Network Reset Guide on OnePlus

Last updated: June 2026 · O2 · OnePlus

Resetting network settings on your OnePlus clears all O2 mobile network data — including APN, saved Wi-Fi passwords and Bluetooth pairings — and forces a clean reconnect to O2. This guide explains when to do it and exactly how to perform it on OnePlus.

In this guide
  1. What resets does
  2. Step-by-step reset
  3. After the reset
  4. Frequently asked questions

Network Reset on OnePlus for O2

Understand what a network reset does
A network reset on OnePlus removes all saved Wi-Fi passwords, Bluetooth pairings, APN settings, and VPN configurations. It does NOT delete photos, apps, or personal data. It forces O2 to re-provision your network settings.
Perform network reset on OnePlus
Go to Settings → System → Reset options → Reset Wi-Fi, mobile & Bluetooth and confirm. Your OnePlus will restart automatically. This process takes 30–60 seconds.
Wait for O2 re-registration
After restart, allow 3–5 minutes for your O2 SIM to re-register on the network. Mobile data, calls and texts should restore automatically.
Re-enter O2 APN settings
After a network reset, verify APN settings at Settings → Wi-Fi & network → SIM & network → Access point names. If the O2 APN profile was cleared, add it manually: APN: mobile.o2.co.uk.
Reconnect to saved Wi-Fi networks
Network reset removes all saved Wi-Fi passwords. You will need to reconnect to your home and other saved networks manually and re-enter passwords.
Test all connectivity
Test O2 mobile data by opening a browser. Test calls by making a test call. Test SMS by sending a text. If any feature fails, proceed to individual fix guides.
Contact O2 if problems persist
If network reset does not resolve your issue, call 202 (free from O2). Persistent problems after a network reset usually require O2 to resend provisioning or replace your SIM.

Common Causes of This Issue on O2

CauseLikelihoodFix
Corrupt network profileHighReset resolves this
Wrong APN after updateHighRe-enter after reset
Outdated carrier settingsMediumUpdate carrier settings first

Frequently Asked Questions

Does resetting network settings delete data on OnePlus?

No — a network reset on OnePlus only removes network-related settings: Wi-Fi passwords, Bluetooth pairings, APN configurations and VPN settings. All photos, apps, contacts, messages and personal data remain completely untouched.

How long does a O2 network reset take?

The reset process on OnePlus takes 30–60 seconds and involves an automatic restart. After restarting, allow 3–5 minutes for your O2 SIM to re-register on the network. Mobile data, calls and texts should restore automatically without any additional steps.

Will I need to re-enter O2 APN settings after a network reset?

Possibly — a network reset may clear custom APN settings. After resetting, go to Settings → Wi-Fi & network → SIM & network → Access point names and verify the O2 APN profile reads: APN: mobile.o2.co.uk. If the profile was cleared, add it manually using the O2 APN values.

Still having trouble? Contact O2 support on 202 (free from O2) or visit our contact page for further help.