All-in-one-enable-diag-reset-tool-for-samsung-lg-htc-huawei-qualcomm-my-blog

*#0808# : Select or RMNET + DM + ADB and tap OK .

*#7284# : (Older models) Select for USB and DM+MODEM+ADB . *#9090# : Select DM/DUM over HS-USB . LG ##3424# *#0808# : Select or RMNET + DM + ADB and tap OK

Check on your PC; the device should now appear under Ports (COM & LPT) as a "Qualcomm HS-USB Android Diagnostics" port. 🧰 All-in-One Tools (Third-Party) LG ##3424# Check on your PC; the device

If dialer codes don't work, you can use ADB commands from your computer. This method typically requires . Connect your phone to the PC. Open a terminal (CMD or PowerShell). Enter the following commands sequentially: adb shell su setprop sys.usb.config diag,adb Use code with caution. Copied to clipboard Connect your phone to the PC

##3424# then select or use a service tool like XTC 2 Clip. 💻 Method 2: ADB Commands (Root Required)

Before attempting to enable DIAG mode, ensure you have the following: Install Qualcomm HS-USB QDLoader 9008 drivers for your PC. ADB Tools: Ensure you have ADB and Fastboot installed.