Why I cant update my Samsung Note 3: Model SM.N9005

I am using an Unlocked phone,last updated 2014, Korea,currently android version 4.4.2.
Kernal version 3.4.0-2538583
Whenever i tried to check for updates it says REGISTERING DEVICE> PROCESSING FAILED.
if i need to use samsung KIES, kindly tell me what version.

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