Step 1: Open the Settings App. Please open the Settings app, and choose the "About phone" > "Software information" option> Tap the "Build number" icon seven times.
Step 2. Find Developer Options. Go back to the "Settings" page. You will find the "Developer options" feature.
Step 3. Enable USB Debugging Mode. Scroll down the screen and navigate to the "USB debugging" icon. Then enable it and choose the "OK" option. Now you have enabled the USB debugging feature on your Samsung phone.
Readinfo (ADBmode) of Samsung devices instruction
In the menu of Readinfo. The second button is for Reading info from ADBmode