Qualcomm-smartphone-write-imei-tool-v1.01.zip Direct

Despite its utility, engineers and technicians must be aware:

There are two methods:

Method A (Most Qualcomm phones): Dial *#0808# → Select ‘RMNET + DM + MODEM’ or ‘DIAG + ADB’. This switches the USB port to diagnostic mode. qualcomm-smartphone-write-imei-tool-v1.01.zip

Method B (Using ADB): With USB debugging enabled, run: Despite its utility, engineers and technicians must be

adb shell
su
setprop sys.usb.config diag,adb

You will see a new COM port appear in Device Manager under “Ports (COM & LPT)” as “Qualcomm HS-USB Diagnostics 900E (COMx)”. You will see a new COM port appear

The tool functions as a diagnostic interface between a Windows PC and a Qualcomm-based Android device.