Joswiak acknowledged the mistake in the initial update of Apple’s iOS 8 mobile operating system — but said the problem resided in how the software was “wrapped,” not with the update itself.

“It had to do with the way the software was being sent over servers,” Joswiak told Re/code on Tuesday at the Code/Mobile conference in Half Moon Bay, Calif. “It was the way software was being distributed.”

Joswiak said the company reacted within an hour of discovering the problem, and it swiftly offered a software fix.