There have to also be no credits over the machine. The Start button can't be flashing to begin a fresh game; Therefore, the codes will never get the job done if the machine is set without cost play. ............................................................................................................................................................................................... https://avengers-pinball-machine53826.illawiki.com/629657/the_fact_about_avengers_infinity_quest_pro_pinball_machine_by_stern_that_no_one_is_suggesting