Hello Roman,
It is too old the update site you mentioned .
I recommend you use the latest KDS version KDSv3.2 : you can download it from here :
https://www.nxp.com/products/wireless-connectivity/zigbee/kinetis-design-studio-integrated-developme...
And if you really want to use KDSv3.0, about the update ,you can choose the "--All Available Sites--",
then it list the patch need to update :

BTW, these update site can't open by browser.
Have a great day,
TIC
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