: While keeping the volume buttons held down, plug the other end of the USB cable into your Galaxy A6. Confirm Entry
: Connect one end of a USB cable (Type-C) to your PC or laptop. Enter the Combination : Simultaneously press and hold the Volume Up and Volume Down Connect to PC
Type the following command and press Enter: adb devices (On your phone, accept the RSA key fingerprint if prompted.)
The Galaxy A6 exists as SM-A600A (AT&T), SM-A600F (International), SM-A600GN (Global), SM-A600P (Sprint), and SM-A600T (T-Mobile). The methods above work for all variants.
unplug the USB cable if you are in the middle of flashing with Odin.