My AirDrop "S earch for an Older Mac" method works also on Catalina supported Macs, that are not allowed to discover and be discovered from legacy machines, since apple dropped the "Search for an Older Mac" function from Catalina. I've tried also from a MacBook7,1 Mavericks AirDrop to discover and be discovered from Catalina and it's totally working. In both cases it's bidirectional working. Next picture I unplug this Catalina USB SSD external and plug to the MacBook7,1 and from MacBookPro6,2 I run a Mojave, lets check it out. On the picture attached both the machines use their default Bluetooth 2.1+EDR internal device, the other one is MacBook7,1 with HighSierra installed, and the HS one can detect this Catalina MacBookPro6,2. The only file attached is suffice in my case (probably because of my previous manual patch on theīrcm4360 driver used) to allow using the BT 2.1, but consider that some very legacy machines may need to replace from Mojave the entire folder attached, the Mojave AirDrop.app should be re-placed inside the /Catalina/System/Library/CoreServices/Finder.app/Contents /Applications/ Ovewrite the file AirDropInfoView.nib attached with the one inside that path.Īfter replace no need to reboot just from Catalina Terminal: killall Finder Open /System/Library/CoreServices/Finder.app/Contents/Resources/Base.lproj/ Here are the steps from Catalina Terminal: "Older Macs" in AirDrop are considered by apple all the machines without a BT 4.0 internal device, so those with a BT 2.1 internal device. I've re-enabled the AirDrop legacy feature " Don't see who you're looking for?" and "S earch for an Older Mac" that from Catalina was dropped. I guess I've patched the Catalina AirDrop to use AirDrop without a BT 4.0 usb dongle.
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