Originally Posted by rabben
Cracked my gorilla glass today! A small crack across my entire screen, but the problem is that I was holding it upright on a table and it just flipped down and the crack appeared. I've had s2 and s3, both for one year, and dropped them down on pavements and floors with nothing happening to them! Anyone else experienced this?
Sorry to hear about the screen crack.Found this interesting & informative post from GOOGLE+ on the specs of GORILLA GLASS 3:
Shared publicly - Apr 26, 2013
Just to clear up some speculation in regards to Gorilla Glass 3 vs. 2 using science and official specification documentation.
The difference in brittleness (correlated by Young's Modulus) between Gorilla Glass 2 and 3 is 71.5 and 69.3 GPa respectively. This is a 3% difference, and barely any difference. Just as a comparison: glass is usually around 50-90 GPa, mother of pearl is on average 70 GPa. (lower=more elastic, higher=more brittle)
The axial stress (aka Poisson's Ratio) is almost exactly the same, 0.21 to 0.22, which can easily be down to systematic and rounding errors.
The fracture toughness (how hard it is for a crack to elongate/propogate) actually decreased from 0.68 to 0.66 MPa m^0.5, so if you have a crack in your screen, it will spread 3% easier.
And finally, the hardness of the glass did not change. It is just as easy to scratch a Gorilla Glass 2 panel as it is to scratch a Gorilla Glass 3 panel.
tl;dr - There are very little differences between Gorilla Glass 2 and 3. It should not be a deciding factor when you are deciding which phone to buy.
Just a guess,but,I'm betting the larger the screen area,the more susceptible it is to fractures/cracking.
A phone case w/a lip to buffer the energy of an impact will likely prevent such damage.A screen protector will do as well.
Anyhoo,not knowing when/where you purchased your phone,I'd look at getting some sort of warranty service action started ASAP.