Disconnect your phone from the computer and restart it. Once booted, open your dialer and type *#06# to verify that your original IMEI numbers have been successfully restored. Insert your SIM card to confirm that your mobile signal, 4G/5G data, and SMS capabilities are fully operational. Important Safety and Legal Warning
Check your USB cable and try changing USB ports (preferably use a USB 2.0 port on the back of your motherboard). Reinstall the Qualcomm USB Diagnostic drivers and ensure Diagnostic Mode is truly active on the handset. 2. "Write Failed" or "NV Read/Write Error"
This typically indicates that your phone's EFS partition is locked or protected. You may need to use a custom recovery (like TWRP) to wipe the corrupted EFS, modemst1, and modemst2 partitions before the tool can cleanly write new QCN data. 3. Loop or "No Service" After Flashing Tungtata QCN Tool.zip
: The tool is released as open-source freeware by the developer, Tungtata. Technical Profile : Author : Tungtata . Version : 1.0.0.0 (Release: 07/06/2018). Language : English, written in AutoIT . Functional Workflow
Without more specific details, providing a more targeted guide is challenging. If you could provide more context or clarify what "Tungtata QCN Tool.zip" refers to and its intended use, I could offer more precise guidance. Disconnect your phone from the computer and restart it
Install the official Qualcomm HS-USB QDLoader 9008 and Diagnostics drivers on your PC. Without these, the tool cannot communicate with your phone.
: If a device has lost its signal due to a corrupted EFS partition, technicians use this tool to edit a healthy QCN file with the original device's identity before flashing it back. Device Restoration Important Safety and Legal Warning Check your USB
Modifying an IMEI number is illegal in many jurisdictions. If you are experiencing "Invalid IMEI" issues, it is safer to visit a professional service center or use verified official manufacturer tools.
Seamlessly back up your current network configuration or write a new one in seconds.