Kogan does not usually host these specific "part" files on their public storefront. They are typically found in:
Never install firmware unless it matches your Model Code and Serial Number exactly. Using the wrong file can "brick" your TV. Download 35022105 3840x2160 Kogan part04 rar
If the firmware isn't listed, contacting Kogan Support with your Serial Number is the most reliable way to get the full, safe download link. Kogan does not usually host these specific "part"