phones used by Andrew Weissmann were wiped by means of the wrong password being entered up to ten times in a row, which reportedly returned the phone to its factory settings. Mueller team claimed the phones were accidentally wiped and could not be recovered.
Report: At Least 31 Cell Phones Were “Wiped Clean” by Mueller Team Before They Could be Checked
https://twitter.com/seanmdav/status/1304131579397189634