[SOLVED] Cannot upgrade firmware

[agent_kith]

Do you think it does not like Data coming from Chrome on Mac OS?

Nah, it's the Internet. Sometimes the connection gets cut off randomly (rare but possible). Hence I include the check sums in the download links. Now that you have this problem, think I'd add a feature to display the checksums as the user is upgrading. This should make it easier for people to verify the file they have downloaded.

When there is a problem, usually clearing the local cache will fix it. But it depends on the Internet Service Provider, e.g. if they have a proxy setup for Internet browsing, then it'd not work.

Okay, I downloaded it for a forth time, this time, using VPN in Perth, Australia, and It seemed to get the file intact.  Not sure about the issue, so it appears some data corruption was happening.  In any case, it worked this last time. 

Glad you sort that out. This is something that's beyond my control unfortunately.