Oppo R5 R8107 QCN File – Network Calibration & Baseband Fix
Flashing the QCN file on the Oppo R5 R8107 restores corrupted NV data, repairs "Unknown Baseband" status, and fixes "No Service" or null/invalid IMEI issues on Qualcomm-based architecture.
Device Model: Oppo R5 / R8107
Chipset: Qualcomm Snapdragon 615 (MSM8939)
Function: RF NVRAM repair, Baseband restoration, Network signal fix
Download Link: Oppo R5 R8107 QCN File
Windows PC with Qualcomm USB Drivers installed.
QPST Suite (Qualcomm Product Support Tool).
Device with USB Debugging activated.
Enable Diag Port: Connect your device to the PC and switch on the Diagnostic interface (via secret code *#801# / *#9434# or root ADB shell command setprop sys.usb.config diag,adb).
Confirm Connection: Launch QPST Configuration and verify the active Qualcomm Diagnostics COM port under the Active Phones section.
Open Restore Client: Navigate to Start Clients > Software Download, then switch to the Restore tab.
Load QCN File: Click Browse next to the QCN File field and load your downloaded Oppo R5 R8107 QCN File.
Flash Network Data: Check Allow phone / file ESN mismatch, hit Start, and wait for the status to show complete.
Reboot: Disconnect the USB cable and restart your phone.