No he didn't. If he was born in Hawaii then he's a natural born citizen and nobody except Obama himself can relinquish that. Parents cannot do it on behalf of a minor child. And he could only give it up as an adult by deliberately performing one of the legally defined expatriating acts.
Game over, Obama lost his Natural Born Status when he became a citizen of Indonesia.
He didn't lose it. Game back on.
According to the LAW at the time, he DID lose it.