How to Fix Dual Security Issues on Redmi Note 12 4G (tapas) || with Locked Bootloader || 2024

The Redmi Note 12 4G (tapas) can sometimes encounter dual security issues, especially if the bootloader is locked. This guide will walk you through the steps to fix these issues on any version of MIUI or HyperOS.

How to Fix Dual Security Issues on Redmi Note 12 4G (tapas) || with Locked Bootloader || 2024

1. Preparation:

Connecting to the Diag Port:

First, you need to connect your Redmi Note 12 4G to the Diag Port (DFT). This step is essential to communicate with your device and save important data.

Saving the QCN File:

Once connected to the Diag Port, save the QCN file. The QCN file contains important configuration and calibration data for your device’s modem, which is crucial for network connectivity.

2. Hardware Modification:

Removing the Resistor:

To proceed with the fix, you must remove a specific resistor from the motherboard. This step may require technical skills and tools, so proceed with caution or seek professional help if needed.

3. Fixing Dual Security on MIUI:

Flashing the Latest MIUI Version:

If your phone is running any MIUI version (except HyperOS), flash the latest MIUI version using Auth Flash. Make sure not to disconnect the cable after flashing.

Erasing the EFS Partition:

After flashing the MIUI, erase the EFS partition using DFT EDL mode. The EFS partition contains critical information about your device's radio settings and network configurations.

Restoring the QCN File:

Reconnect your phone to the Diag Port and restore the previously saved QCN file. This step will help resolve any network issues caused by the dual security problem.

4. Fixing Dual Security on HyperOS:

Flashing the ENG Firmware:

If your phone is running the latest HyperOS version with high security, flash the ENG firmware using Auth Flash. Again, do not disconnect the cable after flashing.

Erasing the EFS Partition:

After flashing the ENG firmware, erase the EFS partition using EDL mode. This step ensures that any conflicting security data is removed.

Restoring the QCN File:

Enable the Diag Port and restore the saved QCN file. After restoring, check the network signal to ensure everything is functioning correctly.

5. Finalizing the Fix:

Rebooting to Fastboot Mode:

Reboot your phone to Fastboot mode. This mode is used for flashing firmware and making low-level changes to your device.

Flashing the Latest HyperOS Firmware:

Finally, flash the latest HyperOS firmware using Fastboot (DFT Pro). This step will complete the process and ensure that your device runs the latest and most secure version of HyperOS.

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Conclusion:

By following these steps, you can fix the dual security issues on your Redmi Note 12 4G (tapas) whether it is running any MIUI or HyperOS version. This process involves connecting to the Diag Port, saving and restoring the QCN file, removing a resistor, flashing the appropriate firmware, and erasing the EFS partition. Completing these steps will help resolve network and security issues, ensuring your device operates smoothly.

Disclaimer:

This guide involves technical steps that may void your warranty or cause damage to your device if not done correctly. Proceed with caution and at your own risk. If you are not confident in performing these steps, seek professional assistance.

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