Yup. Just go poking around for a little. As long as you don't go into the developer areas, you won't fuck anything up too bad. ...And if you somehow do, just bring it into a Pokémon Center and let the technicians look at it.

[Most of the technicians are assholes, of course, himself included. But hey, they know how to fix a PokéGear. It's not exactly advanced technology.]