This shift resulted in change of firmware file URLs which can be accessed via new NSRT now. Rather they have just shifted the files to their own download servers.
This NSRT update makes it clear that (fortunately) Microsoft has not deleted the Nokia firmware files altogether. This rendered all the firmware downloading softwares (like Navifirm, Nokia Suite, NDPM, Nokia Care Suite etc) useless. As you may know Microsoft closed down all Nokia websites (including phone software repository) earlier this year. In this release Microsoft has fixed the Nokia firmware download issue. Good news for Nokia phone users! Microsoft recently released a new version of Nokia Software Recovery Tool (NSRT)for good old Nokia phones.