Check your phone's firmware version (Settings > About Phone)

Latest version in Malaysia should be 3047.0000.1326.2009

If the version is lower, than your phone need to update.

just bring to the nearest Centre. They be happy to update for you

then u already preloaded amber update 

hmm..I think it's up to date but where is the glance feature
and I dun see pro cam anywhere in store.thanks

Nokia had temporary removed the apps for upgrading works. Last time 920, 925 owner does manage to download the apps.

Some Nokia's system apps (Accessories, access point, audio, storage check, extras+info, display+touch and etc.) inside your phone also need to be updated, to improved the phone function (extras+info for example will add call+sms filter and brink glance feature to settings instead of display+touch, display+touch after update will remove the glance and touch settings).

Those systems apps update cannot be accessed from Windows Phone Store, install the apps provided by @fantasy1989 to access the system apps update.

glance screen flickering? Not sure what the reason but do you apply screen protector to your phone? 

Nokia Pro Cam had been put back to store (available at Nokia Collection), but no new update. 

http://www.wpcentral.com/nokia-pro-cam-ava...920-925-and-928

change your store to US 

go to setting > region> change to US > restart phone