Zune HD firmware update: Today we released the v4.3 firmware update for Zune HD players; this update adds support for upcoming 3d games and applications, as well as an auto-suggest feature for better text input, and other minor improvements. Enjoy!
UPDATE: It seems that this update is only for 32GB Zune HD as of publish time. 16GB HD will not auto update to v4.3 yet.
Read how to manually force your zune to update after the jump.
What worked for me is doing this simple change in the Regional and Language setting of your machine. Set it to English (Republic of the Philippines) then run your Zune Software and check for updates
If it still isn’t working for you, some forum commenters are advising to do the following:
Those of you having problems, you don't necessarily have a problem with your region and it has nothing to do with 32gb v. 16gb. Simply do a system restore on the device.
1. Press POWER/MEDIA (side) buttons together for 15 seconds. wait for the full time or until you see the screen that tells you you will need to connect to use the device THIS WILL NOT DELETE YOUR CONTENT.
2. Start the Zune desktop software and reconnect your Zune. The update should start right away."