Can you change a hard boiled egg to its original soft inside?

No you cannot change a hard boiled egg into its original state. You would have to make another egg. If you want a soft boiled egg, you would put the egg or eggs in a small pot covering the egg or eggs with cold water. Put a lid on the pot and wait for the water to boil (put burner on medium to high). Once the water has boiled, immediatly time the egg for 3 min, and once the 3 min is up, dump out hot water and rinse eggs with cold water to stop the egg from over cooking. Then crack open the top of the egg and enjoy!