: On the phone's lock screen, go to "Emergency Call" and dial *#0*# to open the diagnostic menu.

: Specifically leverages a "Test Mode" ( #0 #) to enable ADB and bypass the lock.

: Includes options for factory resetting, disabling Knox, and reading device info in MTP mode.

: While primarily for Samsung, newer updates have added support for Xiaomi, LG, and Oppo devices. Basic Usage Steps