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

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

*#7284# : (Older models) Select for USB and DM+MODEM+ADB . *#9090# : Select DM/DUM over HS-USB . LG ##3424# 5457#*#xxxx# (Replace xxxx with your model number, e

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