How can I update my Samsung A13 through the phone settings?

[PoeticJustice]

How do I update my phone and can we reset the phone to the settings it had on day of purchase

[LongHiker]

@PoeticJustice You can update the phone by going to phone settings -> Software update -> Download and install. 

Be aware that a factory reset will erase all of your data on the phone. You can do a factory reset by going to phone settings -> General management -> Reset -> Reset all settings. 

[meself]

As @LongHiker stated but to the question of keeping it Same as when you got it more or less that's the default settings which you can change such as ring tone or tones and displays options