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

Go to Settings > About Phone and tap Build Number 7 times, then enable USB Debugging in Developer Options . 📱 Method 1: Dialer Codes (No Root)

This guide provides a comprehensive overview of how to enable on various Android devices using common methods and tools. Go to Settings > About Phone and tap

##3424# then select or use a service tool like XTC 2 Clip. 💻 Method 2: ADB Commands (Root Required) 💻 Method 2: ADB Commands (Root Required) 5457#*#xxxx#

5457#*#xxxx# (Replace xxxx with your model number, e.g., 855 for G3) Go to Settings > About Phone and tap

For devices where manual methods fail, dedicated software can automate the process:

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

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.