Hello. Today i will show how to install Sapphire Radeon HD 7850 on OS X Maverick driver on OS X Maverick 10.9.0
After that, you can install Update 10.9.2.
1. Create a new folder in Desktop, copy all files from S/L/E.
2. Install Update 10.9.2 and restart computer.
3. Copy back to S/L/E and with Kext Wizard, install AMD7000Controller and ATI X4000. That two kexts:
a. Click Prepair Permission and Rebuild cach.
b. Click Installtion, select Backup Kext That Will Be Replaced, click Install and select the kexts, install.
c. Click again Prepair Permission and Rebuild cach, reboot computer.
Welcom to new Desktop on OS X 10.9.2.
Good luck !!!