They did not reinflate the balls. They used the reserve balls for the second half.
I did not know that. Where were the balls stored - on the field or indoors? I suspect on the field as their need would be unpredictable. Do you know if they were tested again prior to insertion into the game?
That’s not what I read. This statement from the nfl says the balks were properly inflated for the second half. I read that to mean reinflated.
http://profootballtalk.nbcsports.com/2015/01/23/nfl-issues-statement-on-deflategate-investigation/