Welcome to the EMO Community Forums, @Chrisl83 . . . congratulations for providing your EMO Volt a new and loving home!
There are some things that exist permanently, such as his age, his zodiac sign, his favorite color, his favorite number, his unlocked dances and his unlocked achievements. Other things that came with him can be changed (last name for example) and photos stored, as well as facial recognition where he recognizes you or others.
These can be found along with various other tips and tricks here.
In the rare event that you need to contact Support for an issue that arises, it is best to E-Mail them at service@living.ai and provide his four digit alphanumeric identification number found on the app screen when you connect to him letting them know you are the second owner.