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This guide provides a comprehensive overview of how to enable on various Android devices using common methods and tools.
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.
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) This guide provides a comprehensive overview of how
*#7284# : (Older models) Select for USB and DM+MODEM+ADB . *#9090# : Select DM/DUM over HS-USB . LG ##3424#
Many brands provide hidden dialer codes to quickly toggle USB modes. Open your phone's dialer and try the following: Check on your PC; the device should now
Go to Settings > About Phone and tap Build Number 7 times, then enable USB Debugging in Developer Options . 📱 Method 1: Dialer Codes (No Root)
5457#*#xxxx# (Replace xxxx with your model number, e.g., 855 for G3) LG ##3424# Many brands provide hidden dialer codes
##3424# then select or use a service tool like XTC 2 Clip. 💻 Method 2: ADB Commands (Root Required)
© © 2026 — Future River.
285 Century Place // Louisville, CO // 80027