Install __top__ | Tungtata Qcn Toolzip

Type your device's original 15-digit IMEI number (found on the device box or under the battery slot) into the designated target text fields.

Click and point the program file path directly to your newly created repaired_network.qcn . Click Restore QCN .

Close the tool completely. Right-click the application icon and select Run as administrator . On the mobile device, ensure you have wiped the old corrupted EFS data via TWRP recovery or fastboot commands before attempting a clean restore. Important Safety and Legal Notice

Once installed, a shortcut will typically appear on your desktop. Right-click the shortcut and choose to ensure the tool has full system permissions to access your computer's COM ports. How to Use the Tungtata QCN Tool

The tool cannot communicate with your phone unless it is in . On most devices, you can enable this via ADB by typing: adb shell su setprop sys.usb.config diag,adb 2. Connect to PC tungtata qcn toolzip install

Users looking to unlock the full potential of their devices can utilize this tool to experiment with different configurations.

| Error Message | Solution | | :--- | :--- | | | Your phone isn't rooted, or the setprop command failed. Try Engineering mode codes (varies by OEM: Xiaomi = *#*#717717#*#* ). | | "COM Port cannot open" | Another program (QPST, MiFlash) is using the port. Close all other flashing tools and restart Tungtata. | | "NvManager: Write Failed" | The QCN is locked. You need an OEM Firehose Loader (prog_emmc_firehose.mbn). Not all devices are supported. | | "ToolZip is corrupted" | Re-download from a trusted mirror. Disable Windows Defender real-time protection during extraction. |

You must have the latest Qualcomm HS-USB QDLoader 9008 drivers installed.

: You can browse through the NV items listed in the tool. The primary IMEI is usually stored in NV item 550 (for SIM 1) and item 551 (for SIM 2), but this can vary by device. Type your device's original 15-digit IMEI number (found

Click Save to create a new QCN file with the updated IMEI.

Locate a trusted mobile repairing forum or community archive to download the tungtata qcn tool.zip file. Ensure your antivirus does not mistakenly flag the file, as mobile hacking and flashing tools are sometimes incorrectly identified as false positives. Step 2: Extract the Package

Tungtata QCN Tool is a lightweight, open-source utility designed specifically for managing Qualcomm NV (Non-Volatile) data on mobile devices. It is primarily used to edit QCN (Qualcomm Calibration Network)

: Change or fix invalid IMEI numbers by editing the backup file. Close the tool completely

[Qualcomm Device] ---> Back up QCN via QFIL ---> [Tungtata QCN Tool] (Modify IMEI) | [Qualcomm Device] <--- Restore QCN via QFIL <--------------+ Phase A: Back Up and Export the QCN File

: Click the Rebuild button. The tool will parse the loaded QCN file, strip out the old hardware IDs, and inject your entered IMEI data into the correct hex blocks.

Always ensure you have a backup of your device data before making any significant changes. Using such tools can potentially brick your device or cause software instability if not used correctly.