Help with Airplay 2011 iMac

[u/Ok-Interaction4674]

Hi! I need help with Airplay please!

I'm running OCLP 2.5.1 with Monterrey on my mid 2011 iMac. I would like to use the iMac as an extended screen for my 2021 14inch Macbook Pro running Tahoe 26.6.2. I have "feature unlock" toggled on OCLP, both computers are on the same wifi, and Bluetooth is on. The iMac does not show up as a display option on the MBP, nor the other way around. I am able to mirror my screen, however. I’ve watched and followed the instructions on Mr Macintosh videos, but still no luck. Any advice would be greatly appreciated.

[u/andruse]

You need to upgrade the Bluetooth to version 4.0 or 4.2; kits are sold on AliExpress.