iDock C20 using Samsung Frame as 4K monitor only has 30 Hertz refresh (should be 60 Hertz)

I have the iDock C20, using Samsung Frame TV as monitor. I was working with my previous hub as a 4K 60 Hertz monitor, so I know this works with my newer model Mac laptops. However, connecting the C20 with a new HDMI 2.1 cable results in max 30 Hertz refresh rate.

This is unusable, and I will need to return the C20 if I can’t resolve. Any ideas welcome.

Hello there,

Thanks for reaching out to AV Access,and so sorry that we has talked on the email right?
And now your laptop has work again,and please try download and upgrade the new firmware I sent by the email.

Best Regards,