“An unknown error has occurred ” app store login problem solution hackintosh

After upgrading my hackintosh installation to mountain lion 10.8.2 .. i start facing weird problem and that was whenever i tried to login to apple my apple account . iTunes and iCloud worked well but App Store its start throwing “An unknown error has occurred ” .
Previously I faced other problem , and it was solved it with inserting ” PCIRootID = 1 ” in my boot plist
but this problem was not that simple .. after searching and looking at logs .. if found a perfectly working solutionProblem Looks Like This :

apple app store login problem

Steps to solve this problem :

Before Doing Anything Make sure you have ” en0 ” as your primary interface 
1 :  download EFI studio and chameleon wizard
2 :  Open EFI studio
3: click on Select Device and from drop-down choose Ethernet  and Click Add Device 
4: copy HexString to clipboard
5: manually add device properties in org.chameleon.Boot.plist or use chameleon wizard app6 : paste and click save
7 :  updated chameleon boot plist will look like this
8: Repair Permissions and reboot 

have fun


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