OnePlus 15R: Fix 'No SIM Card Detected' Error Step-by-Step

Troubleshooting SIM Card Detection on OnePlus 15R

• 💡 Eject the SIM tray using the provided pin, carefully pushing it into the hole to release the tray.
• 📌 Remove the SIM card from the tray and gently wipe the contacts with a dry cloth to ensure a clean connection.
• 🧩 Try the alternate SIM slot if your phone has dual SIM capability, ensuring the SIM is inserted with the contact side facing up.

Verifying SIM and Network Settings

• 🔍 Check Mobile Network settings within your phone to confirm if the SIM card is detected in either slot.
• ⚠️ Test the SIM card in another phone to determine if the issue lies with the SIM card itself or the OnePlus 15R.
• 📶 If the SIM works in another device, proceed to check for software updates by connecting to Wi-Fi and navigating to System > Update.

Advanced Troubleshooting Steps

• ⚙️ If software updates don't resolve the issue, reset network settings by going to System > Backup & Reset > Reset Phone > Reset Network & Bluetooth settings.
• 📞 If the problem persists after these steps, it indicates an issue with the SIM card itself, and you should contact your carrier for further assistance.