How to Fix REDMI Note 15 Pro 5G 'No SIM Card Detected' Error

Troubleshooting SIM Detection Issues

• 💡 Remove and reinsert the SIM card to ensure it's properly seated.
• 🛠️ Clean the SIM tray and slot using a cotton pad or microfiber cloth to remove any dust or debris.
• 📌 Eject the SIM tray using a pin-like tool and carefully reinsert the SIM card, paying attention to the SIM1/SIM2 slots.

Verifying SIM Card Functionality

• 🔍 Test the SIM card in another device to determine if the issue lies with the SIM card itself or the phone.
• ⚙️ If the SIM works in another device, proceed to reset network settings on your REDMI Note 15 Pro 5G.

Resetting Network Settings and Software Updates

• 🌐 To reset network settings, navigate to Settings → More connectivity options → Reset Wi-Fi, mobile networks, and Bluetooth, then confirm the reset.
• 📶 Connect to a Wi-Fi network to check for and install any available software updates for Xiaomi HyperOS, as outdated software can sometimes cause detection problems.
• ✅ After performing these steps, check again in Settings → Mobile networks to see if the SIM card is now detected.