Every time when we need update handset, as result we go to service station for update handset or mobile device.
Don’t very you can update your device easily, or without visit service station. Through vari
ous 2 different way 1) through fot a service 2) through kies
Fota: firmware over the air. In this process you can update your device by go to settings >about phone >check software ver> check for update.
But before the starting this kindly check your batter charging condition it should be >80% . or strong net connectivity , its better if you have use wifi connectivity.
Kies: another one option kies, you can download kies by going Samsung official website : after downloading install then connect your phone & go to check or update
See the below video how to update software via fota service