Press and hold the “Ice Type” and “Child Lock” buttons together for 3 seconds
Press and hold the “Alarm” and “Lighting” buttons together for 3 seconds
Press and hold the “Filter Reset” button for 3 seconds
Press and hold the “Water Filter” button for 3 seconds
Press and hold the “Ice/Water” button for 3 seconds
Check your model’s control panel if the above buttons do not work
Refer to the user manual for the exact reset method for your Samsung fridge model