I'm trying to update the game for weekend beta test but launcher stucking at "Loading Defaults" screen.
any fix or suggestions (i dont want to download whole game again)

Same here, cant find any information on this topic other than the customer service solution which doesn't work. Incredibly frustrated, not looking to dump hours into just getting the game to start the installation.

I'll keep bumping this till either a Community Manager or someone provides some fix.

More luck here, now that they're open for everyone.

http://forums.elderscrollsonline.com/

Did you try the beta forum? Can not look at it right now, maybe later.

thanks for reply but since i cant reach the launcher interface im not able to change server settings from EU to US