Enter your phone's original IMEI 1 and IMEI 2 into the fields. Click to output a personalized QCN file. Step 4: Flash the Rebuilt QCN via QPST Launch the QPST Configuration application on your PC.
Click on the tab and verify that your device’s COM port is listed as "Enabled."
Under "QCN File," browse and select the downloaded . Check the "Allow phone/file QCN mismatch" box. Click Start . Step 3: Verify and Reboot
The "Top" QCN file refers to a clean, untouched backup taken from a fully functional device running the latest OxygenOS or ColorOS firmware, with all NV items intact and region locking removed (Global version).
A new window will appear. Click on the tab first to create a safety copy of your current, corrupted network configuration. Once the backup completes, switch to the Restore tab. oneplus 7t pro qcn file top
: Go to Settings > About Device > Version, then tap "Build Number" 7 times. Navigate back to Additional Settings > Developer Options and toggle USB Debugging .
Here is the professional sequence to flash the file without bricking your device.
Lost RF tuning tables after installing a mismatched regional ROM. Dropped Hardware Antennas Physical damage from drops or water. No (Requires a hardware repair) Prerequisites Before Starting
Open a command prompt inside your PC's platform-tools folder. Enter your phone's original IMEI 1 and IMEI
: Signal strength and frequency band settings.
file is a critical system backup used to manage the device's radio frequency (RF) and network calibration data. It is primarily used by technicians and advanced users to resolve complex network-related issues when standard software resets fail. What is a QCN File? A QCN file serves as an export of the EFS (Encrypted File System) NV (Non-Volatile)
To use these files, you will typically need specialized Qualcomm service software: OnePlus 7T PRO MACLAREN QCN File - GSM Rehan
Backup your own QCN before any flash. If you already lost it, try free community QCN files (XDA) first — they often work just as well as paid “top” versions. Click on the tab and verify that your
To write new network configuration data successfully, the old, corrupted data must be wiped.
Have you ever had to restore your IMEI or network settings on a OnePlus device? Share your experience in the comments below
Software that manages radio functions.