Xiaomi mi redmi note 3 6.0.1 imei repair tool

How to Fix Null or Invalid IMEI on Xiaomi/Redmi Devices with QCN Rebuilder Tool '2022'

If you're facing issues with your Xiaomi or Redmi device, such as a null IMEi or an invalid IMEi after flashing firmware or due to software problems, this article will guide you through the process of restoring your device's original IMEI number. The solution we'll be using is QCN Rebuilder Tool, which is a free and reliable tool specifically designed for Xiaomi devices.

Why Does My Device Need IMEI Repair?

IMEI (International Mobile Equipment Identity) is an essential 15-digit code unique to each mobile phone or SIM card that identifies it with its network provider. If your device's IMEi becomes null or invalid, you may encounter several problems:

1. Network connectivity issues: Your device might not be able to connect to the internet or make calls.

2. Device freezing or rebooting: The constant conflict between the operating system and the null/invalid IMEI can cause frequent restarts or complete freezes.

How to Use QCN Rebuild Tool for Xiaomi IMEi Repair:

1. Download and install USB drivers from official websites (for Windows, Mac, or Linux) if you haven't already.

2. Connect your device to a computer using an original USB cable in recovery mode (the exact process may vary depending on the model; refer to manufacturer's instructions).

3. Extract QCN Rebuilder Tool and run it as administrator/with admin privileges.

Step-by- Step Instructions:

1. Open the tool, select 'Read Info' from the top menu bar.

2. Select your device from the list (e.g., Xiaomi Mi Note 5 Pro). If not listed, try selecting 'Generic Qualcomm Flasher'.

3. Click on 'Read IMEi/Serial Number'.

4. Write down or copy the IMEI number displayed in the tool's main window.

Step 2: Reflash Firmware with QCN Tool

1. Open the tool again and select your device from the list (if not already selected).

2. Click on 'Reflash' at the top menu bar.

3. Browse for a ROM file (.img or .zip) compatible with your Xiaomi/Redmi model, which you can download from official firmware websites like MiFirm.

Step 3: Flash IMEI via QCN Tool

1. Connect your device to the computer in recovery mode again (refer to manufacturer's instructions).

2. Open QCN Rebuilder tool and select 'IMEi Write' from the top menu bar.

3. Click on 'Browse', then locate the .dat file containing your original IMEi information that you saved earlier during step 1.

4. Select the correct slot where you want to write the new IMEI (usually Slot 1).

5. Press 'Write IMEi' and wait for the process to complete.

6. Once done, restart your device normally without booting into recovery mode again.

How to Check if Your Device's IMEI is Successfully Restored?

To verify that your device's original IMEI has been successfully restored:

1. Go to Settings > About Phone/Information.

2. Look for 'IMEi information' or similar depending on the device model and Android version you're running (6.0 in this case).

3. Your new, correctly formatted IMEi should be displayed here.

Troubleshooting Tips

If your device still shows a null or invalid IMEI after following these steps:

1. Ensure that you've downloaded and installed the correct drivers for your operating system.

2. Check if your USB cable is functioning properly.

3. If using an older version of Android, try flashing a newer firmware update to see if this resolves the issue.

IMEi repair can be a complex process, especially for those without prior experience with smartphones or computers. However, by following these step-by-step instructions and downloading the right tools from trusted sources (like QCN Rebuilder Tool), you should be able to fix your Xiaomi/Redmi device's IMEi number easily.

Remember that flashing firmware voids manufacturer warranties; always back up important data before attempting any of these procedures. If none of these solutions work, consider visiting an authorized service center for professional assistance.

Xiaomi mi redmi note 3 6.0.1 imei repair tool