You can still use the M610 perfectly without the software:
By following this guide, you can transform your Gainer M610 from a standard pointing device into a highly customized weapon for your gaming arsenal. redragon gainer m610 software
If you continue to have trouble finding the software, contact Redragon support directly via their website or email support@redragonusa.com —they usually reply within 24-48 hours with a direct download link. You can still use the M610 perfectly without