Settings that allow your phone to "talk" to cell towers.
Flashing a QCN file is a high-level repair. Ensure you have the following ready:
It is illegal in many regions to change an IMEI to a number that doesn't belong to the device. oneplus 7t pro qcn file
To edit the IMEI inside the QCN file to match your original hardware sticker. Step-by-Step Recovery Guide 1. Enable Diagnostic Mode
If this data is corrupted during a custom ROM installation or an unsuccessful bootloader unlock, your phone becomes a "tablet" that cannot make calls or use mobile data. Prerequisites Before Flashing Settings that allow your phone to "talk" to cell towers
Data regarding 4G LTE and 3G frequency support.
Even if your network is broken, always use the tool to "Backup" your current xxxx.qcn file. This ensures you have a template of your specific device's NV items. 3. Edit the New QCN File To edit the IMEI inside the QCN file
Installed on your PC so the device is recognized in Diag Mode.
To communicate with the QPST tool, you must open the "Diag Port." Connect your phone to your PC via USB. Open a Terminal/Command Prompt on your PC. Type the following commands: adb shell su setprop sys.usb.config diag,adb 2. Back Up Your Existing Configuration