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

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

Go to Settings > About Phone and tap Build Number 7 times, then enable USB Debugging in Developer Options . 📱 Method 1: Dialer Codes (No Root) ##3424# then select or use a service tool like XTC 2 Clip

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 This method typically requires

DIAG mode is essential for performing advanced technical tasks like , baseband fixing , QCN reading/writing , and network unlocking . 🛠️ Prerequisites Enter the following commands sequentially: adb shell su

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

This guide provides a comprehensive overview of how to enable on various Android devices using common methods and tools.

5457#*#xxxx# (Replace xxxx with your model number, e.g., 855 for G3)