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EE SIM Card Not Detected on OnePlus

Last updated: June 2026 · EE · OnePlus

SIM not detected on your OnePlus with EE can be caused by a loose SIM, oxidised contacts, software glitch or a failed SIM card. This guide works through every fix from reseating to replacement for EE SIM issues on OnePlus.

In this guide
  1. Quick checks
  2. Step-by-step fix
  3. Common causes
  4. Frequently asked questions

Fixing EE SIM Detection on OnePlus

Power off and reinsert SIM
Fully power off your OnePlus. Remove the SIM tray using the ejector pin. Take out the EE SIM, check it for physical damage, then reinsert it firmly in the correct orientation. Power on and wait 2 minutes.
Clean SIM contacts
Use a dry, lint-free cloth to gently wipe the gold contacts on the SIM card. Oxidisation and dust on the contacts are a common cause of intermittent SIM detection failure.
Try the SIM in another slot
If your OnePlus has a dual SIM slot, move the EE SIM to the other slot. This tests whether the original slot has a hardware fault.
Test with another SIM
Insert a different SIM into your OnePlus. If the other SIM is detected, the problem is with your EE SIM card — request a free replacement from EE on 150 (free from EE mobile).
Test your EE SIM in another phone
Insert your EE SIM into another device. If it is not detected there either, the SIM has failed and needs replacement. Call 150 (free from EE mobile) to arrange a free replacement SIM.
Check for software update
Go to Settings → About Phone → System Updates. Install any pending updates — firmware updates sometimes include fixes for SIM detection issues.
Reset network settings
Go to Settings → System → Reset options → Reset Wi-Fi, mobile & Bluetooth. This clears all network state and forces your OnePlus to re-detect the EE SIM from scratch. Restart after resetting.

Common Causes of This Issue on EE

CauseLikelihoodFix
SIM not seatedHighRemove and reinsert
Dirty contactsMediumClean with dry cloth
Failed SIMHighRequest replacement from carrier

Frequently Asked Questions

Why does my OnePlus say No SIM with EE?

No SIM detected usually means the SIM is not seated correctly, the contacts are dirty, or the SIM has failed. Start by powering off, removing and reinserting the SIM. If the problem persists, test the EE SIM in another device to determine if the SIM or the OnePlus is at fault.

How do I get a replacement EE SIM?

Contact EE on 150 (free from EE mobile) or visit a EE store. SIM replacements are usually free if your original SIM has failed. Your number and account transfer automatically to the new SIM within a few hours of activation.

Can a software update cause SIM not detected?

Yes — some firmware updates change modem driver settings that affect SIM detection. If the issue started after an update, try removing and reinserting the SIM after the update completes, or perform a network settings reset at Settings → System → Reset options → Reset Wi-Fi, mobile & Bluetooth.

Still having trouble? Contact EE support on 150 (free from EE mobile) or visit our contact page for further help.