i just saw this : http://www.osx86.net...ntain_lion.html
according to the testimonies, it works well!
I also have a HD6770 I flashed into HD5770, but I didn't have time to try it!
I will do it in a few minutes!
Tell me if it works for you!
Good luck !
Method 3: if you're using Clover, you can make this card work with a Fake ID injection
<key>Devices</key> <dict> <key>FakeID</key> <dict> <key>ATI</key> <string>0x68B81002</string> </dict> </dict>
Method 2: since OS X 10.8, you no longer have to edit those kexts, just inject your ID via dsdt: http://www.insanelym...lion/?p=1902721 (credits go to RampageDev)
Method 1: i can confirm it, with the last Chameleon-2.1svn-r2054.pkg, it work well on 10.8.2 Build 12C43 !!!
No more need to flashing HD 6770 into HD 5770 to have QE/CI !!!
So just add your ID (0x68BA1002) into ATI5000Controller.kext, ATI6000Controller.kext and AMDRadeonAccelerator.kext
<key>AMDJuniperGraphicsAccelerator</key> <dict> * * * <key>IOPCIMatch</key> <string>0x68BA1002 0x68B81002 0x68B01002 0x68B11002 0x68A01002 0x68A11002</string>