Established Fact
At the end of advance voting, the memory cards were removed from 138 tabulators and on Election Day they were inserted into surrogate tabulators which were used to print fraudulent official returns.
Citations
Fulton County 2020 General Election Report for Georgia State Election Board, Election Oversight Group, LLC https://drive.google.com/file/d/1UzJ4qX6iBSrFMtkoRnOGIe3q8pzGjkVx/view?usp=drive_link