Fix IMEI 0 on Realme 9 Pro 5G (RMX3472) – Step-by-Step Guide [Android 13]

🔧 Fix IMEI 0 on Realme 9 Pro 5G (RMX3472) – Step-by-Step Guide [Android 13]

If you're seeing IMEI 0 on your Realme 9 Pro 5G (model RMX3472), don’t panic — this issue is common after flashing or unlocking, and can be fixed.

In this guide, I’ll show you how I fixed a phone in my own shop using simple tools and clear steps. You don’t need a box — just a PC, a cable, and free tools like CF-Tools.

🧑‍🔧 My Repair Case

A customer came to me with their Realme 9 Pro 5G, which had no IMEI and couldn’t make calls or connect to mobile data.

They had tried to root and flash the phone, and ended up with IMEI 0/Unknown. I followed the method below using CF-Tools and within 20 minutes, the IMEI was back, and the phone was working normally again.

✅ What You’ll Need

• A Windows PC
• Realme 9 Pro 5G (RMX3472)
• USB Cable
• Android 13 Deeptesting APK
• Backup QCN File
• CF-Tools 

📋 Step-by-Step Instructions

🔓 Step 1: Decrypt Token

• This helps unlock hidden settings.
• Use CF-Tools or your method of token decryption.

🧪 Step 2: Enable DIAG Mode

• Dial *#8011# on the phone.
• You should see Diag mode enabled.

💾 Step 3: Backup Your QCN

• Open CF-Tools, go to the QCN tab.
• Choose Read QCN and save your backup.

🔓 Step 4: Unlock Bootloader

• Install the Android 13 Deeptesting APK.
• Follow steps inside to apply for bootloader unlock.

⚙️ Step 5–7: Unlock with CF-Tools

• In CF-Tools, go to the Fastboot tab.
• Choose Realme → Unlock Realme Bootloader.
• The phone will show a message — allow it.
• Phone will reboot and reset.

🔌 Step 8–10: Reconnect and Prepare

• After reboot, enable USB Debugging again.
• Dial *#9434# to check that the token is still green.
• Go to ADB → Reboot to Fastboot in CF-Tools.

🧼 Step 11: Reset EFS

• Go to Fastboot tab → Realme → Reset EFS Realme.
• This will clear corrupted IMEI data.

🛠 Step 12–14: Enable Diag Again + Write QCN

• Dial *#8011# again to enable Diag.
• Go to Repair tab → Write QCN.
• Load your saved QCN or use this one:

👉 QCN Folder Link

📝 Step 15–17: Final Steps

• Select Write QCN.
• Wait until the process is 100% complete.
• Restart the phone. You're done!

🟢 Final Result

• IMEI numbers are now restored.
• Mobile network is working.
• No need for a box or flashing software.

❓ FAQs (Frequently Asked Questions)

🔹 Q1: My IMEI is showing 0. What caused this?

Usually happens after flashing, rooting, or resetting the EFS partition. But don’t worry — it can be fixed.

🔹 Q2: What is a QCN file?

A QCN (Qualcomm Calibration Network) file stores IMEI and network calibration data for Qualcomm devices.

🔹 Q3: Do I need a flashing box or paid tool?

No. You only need a PC and CF-Tools (free tool). No need for Octoplus, UMT, or Chimera.

🔹 Q4: Will this work on Android 13 only?

Yes. This method is for Android 13. If you're on Android 12 or lower, other methods might be easier.

🔹 Q5: What if the phone doesn’t enter Fastboot or Diag?

• Try different cables or USB ports.
• Make sure drivers are installed.
• Use proper boot key combo: Vol+ + Vol– during connect.