The file is available. If you are outside the United States it could take a few days to get replicated out to your region. Try one of these direct links: [URL] [URL] Thanks
Using link [URL] (from [URL] But all links on this page are giving the error : Sorry, the requested file could not be downloaded. File not found.   I tried both the 'Single-file download' and 'Use Download Manager' option.   
T620 bios 1.4.6 download links not working