: If you already have version 2.1–3.0, you can download the CFX Manager Software v3.1 Upgrade (SOFT-CFX-31-PATCH). Note that upgrading from version 3.0 or lower requires a mandatory firmware update for all CFX systems.
Are you currently attempting to of the software, or are you setting up a brand new computer station for your PCR machine? Previous qPCR Software Releases - Bio-Rad Bio-rad Cfx Manager 3.1 Free-- Download
: Bio-Rad suggests moving to CFX Maestro for advanced statistical analysis (like t-tests and ANOVA) and publication-quality graphics. : If you already have version 2
If you encounter a website offering a "cracked" or unauthorized free download of CFX Manager 3.1 without the need for a Bio-Rad account or license key, proceed with extreme caution. proceed with extreme caution.