Although the text messages couldn’t be retrieved directly from Brady’s phone, his agents provided all of the phone numbers with which Brady exchanged text messages. His agents also said that the league could attempt to get the actual text messages from the phones of the people with whom Brady communicated, but the league refused to attempt to try, claiming that it would be too hard to track down the various people and to persuade them to cooperate.
https://www.patspropaganda.com/although-the-text-messages-couldnt-be-retrieved/