Displays live statistics for signal strength, throughput, Block Error Rate (BLER), and RRC/NAS messaging.

This step varies by manufacturer. Common methods found on XDA include: Dial *#801# in the stock dialer. Samsung: Dial *#0808# and select "RMNET + DM + MODEM". Rooted Devices: Use an ADB shell command: su setprop sys.usb.config diag,adb Use code with caution. 3. Install Qualcomm Drivers