If the QCN restore doesn't fix the IMEI, you may need to use a tool like ChimeraTool to patch the IMEI directly. ⚠️ Important Disclaimer
+-------------------------------------------------------+ | Tungtata QCN Tool | +-------------------------------------------------------+ | [ Load QCN File ] ----> [ Automatic HEX Conversion ] | | [ Edit IMEI Data] ----> [ Re-calculate Checksums ] | | [ Save New QCN ] ----> Ready for Flashing / Restore | +-------------------------------------------------------+
The tool is often distributed as a compressed file (e.g., Tungtata QCN Tool.zip ) containing the executable software. It is frequently used in conjunction with "Combination Firmware"—factory software that enables USB debugging and low-level hardware checks on devices like the Samsung Galaxy S8 series. Usage and Safety Warnings
If you are currently setting up a device repair, what specific are you trying to fix? I can provide you with the exact DIAG mode code or additional specific software tools required to successfully write the file back. Share public link tungtata qcn toolzip
Input the target original or repaired 15-digit IMEI number into the tool's text field.
When you download the utility, it typically arrives as a compressed .zip archive. Extracting this folder generally reveals the following components:
Click or Refresh to establish a secure handshake with the phone. Step 4: Load and Edit the QCN If you are restoring a donor QCN: Click on the Open / Load QCN button. If the QCN restore doesn't fix the IMEI,
Using such tools carries high risk and legal consequences.
Streamlines the process of injecting factory network calibration data.
Wait for the tool to finish the operation. The phone may reboot automatically. Troubleshooting Common Issues Usage and Safety Warnings If you are currently
You must have the Qualcomm USB Drivers installed on your Windows PC.
What (e.g., Xiaomi, OnePlus, Xiaomi) are you typically targeting?
Select the active diagnostic COM port assigned to your phone.