: Go to the official Samsung Manuals & Software page.
These "secret" codes and modes are useful for troubleshooting: instruktsii dlia telefonov samsung
: Samsung also offers interactive online instructions for visual, step-by-step setup. Essential Service Codes & Maintenance : Go to the official Samsung Manuals & Software page
Most Samsung Galaxy devices come with a built-in digital user guide: Open the app. instruktsii dlia telefonov samsung