You can choose to upgrade controller firmware by using one of these tools: • ControlFLASH™ software that is packaged with the Studio 5000® environment • AutoFlash feature of the Logix Designer application Firmware Required for Controllers Controller Series Use this firmware revision 1756-L61 A 12.x or later B 13.40 or later 1756-L62 A 12.x or later B 13.40 or later 1756-L63 A •         If not using a CompactFlash card, 10.x or later •         If using a CompactFlash card, 11.x or later B 13.40 or later 1756-L63XT B 13.40 or later 1756-L64 B 16 or later 1756-L65 B 17 or later 1756-L71 A 20 or later 1756-L72 A 19 or later 1756-L72EROM A 19 or later 1756-L73 A 19 or later 1756-L73XT A 19 or later 1756-L73EROM A 19 or later 1756-L74 A 19 or later 1756-L75 A 19 or later Use ControlFLASH...