⚠️ Modifying QCN files and IMEI information is a sensitive process. Always create a backup of your original EFS and QCN partitions before making changes. Using an incorrect QCN file from a different model can result in a permanent loss of signal or a "hard brick" state.
Open the Tungtata tool, select the correct COM port, click "Read," and save the .qcn file.
The tool is compatible with Windows 7, 8, 10, and 11. tungtata qcn toolzip install
Connect your phone via a high-quality USB cable. Check the on your PC to ensure your phone appears under "Ports (COM & LPT)" as a Qualcomm HS-USB Android Diag port. 3. Backup/Restore Process
💡 If the tool fails to detect your device, try switching USB ports (use USB 2.0 instead of 3.0) and verify that your Qualcomm Drivers are not showing a yellow exclamation mark in the Device Manager. ⚠️ Modifying QCN files and IMEI information is
Must be enabled in the device’s Developer Options. How to Install Tungtata QCN Tool (Zip Version) Follow these steps to set up the tool on your workstation: Step 1: Download and Extract
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 Open the Tungtata tool, select the correct COM
Download the tungtata_qcn_tool.zip from a trusted source. Once downloaded, right-click the file and select . Move the extracted folder to your C:\ drive to avoid permission issues. Step 2: Disable Antivirus
Helps put the device into the required state for communication. Prerequisites for Installation