it got their from the ear piece ... so shoot some can air in that opening.... thank me later...
and worry about it going under the main screen instead?
no thanks. i'll hold off on blowing air in to my device.
I share congusano's concerns about where the dust goes after you blast it with canned air. Also... canned air may leave a residue on the lens which could be more harmful than the speck of dust.
My thoughts... if the 920 is still within the exchange period, swap it out for a new one. If that's not an option, contact Nokia to see if they have any suggestions. Then again, if the dust spec isn't showing up on videos or pictures it may be best not to worry about it.