If you have updated wifi and blue tooth cards and have hand off working on the 5,1 but no go on apple watch unlock.
this got me working. no "cat" needed.
disable sip, boot to recovery,/utilities/termanal/ type
csrutil disable
reboot.
in termanal enter
sudo /usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist
this will whitelist the old mac,
you can reboot to safe mode and 'csrutil enable' to start sip again.
this has worked for me with mojave and high serra, on apple watch 5.
has not worked in Catalina with the dosdude patched thingy.
hope this is useful to someone.
this got me working. no "cat" needed.
disable sip, boot to recovery,/utilities/termanal/ type
csrutil disable
reboot.
in termanal enter
sudo /usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist
this will whitelist the old mac,
you can reboot to safe mode and 'csrutil enable' to start sip again.
this has worked for me with mojave and high serra, on apple watch 5.
has not worked in Catalina with the dosdude patched thingy.
hope this is useful to someone.
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