05-06-2013, 10:48 AM #1
- 1 Posts
I bought my nokia lumia 820 november last year. i have had to change the screen twice because they have shattered. The relatively heavy weight of the phone gives it a heavy fall and make the probability of the screen shattering higher.
my screen broke the first time after falling from a height of about 3 feet. i had no silicone casing at the time and i attributed the broken screen to that fact. however, after repairing the screen and buying a silicone case, it broke again. the phone fell from about the same height as before, the silicone case chipped right where d phone hit d ground and the screen still broke..... again. I then came to a conclusion that the heavy weight increases the chances of the screen breaking when d phone falls.
I will sell the phone after repairing it and go for a lighter phone, may be not nokia again.
- 05-06-2013, 11:45 AM #4Phone History (hopefully in order): Samsung SGH-D407 > AT&T (HTC) Tilt > Sony Ericsson W580 > Blackberry Curve 8900 > Sony Ericsson C901 > HTC Touch Pro 2 > Blackberry 9700 > iPhone 3GS > Motorola Defy > Blackberry 9650 > iPhone 4 > Nokia E71 > Dell Venue Pro > HTC Titan > HTC Titan II > Lumia 900 + Samsung Galaxy Exhibit > Nokia Lumia 920 + Nokia Lumia 521 + Motorola RAZR V3xx
Last updated: 05/13/2013
- 05-08-2013, 03:11 PM #5
05-08-2013, 03:37 PM #6
- 222 Posts
I'm not saying the OP is a liar. But I find it strange that he/she joins WP Forum at 16:31. Then makes a thread at 16:48 the same day, about their 820 screen breaking twice since November, and saying the weight is to blame -- why make the thread (which happens to be the same scenario, as many phone drop tests on youtube), and not reply to others, hmmm?
- 05-08-2013, 07:30 PM #7
- 05-08-2013, 08:13 PM #8
I've dropped my 820 from greater than 5ft twice. I have no case, just invisible shield. No damage.
I think the best solution is to just stop being so clumsy :P
Sent from my RM-824_nam_att_101 using Board ExpressNo longer an active member of this community.
- 05-09-2013, 03:09 AM #10
Ive dropped mine multiple times from over 4ft, and thrown it in anger a couple of times and its still ticking along nicely lol the weight is great, seems to protect it more :)
Oh, its a 920 :)EE- Lumia 920 Black - GDR3 Preview
Vodafone - Lumia 925 Black - GDR/Amber
Vodafone - Lumia 520 Yellow - GDR3 Preview
My own room for chatting if anyone is interested...
- 05-12-2013, 04:12 AM #11
Sorry I don't see how the weight would affect the "hardness" of the fall. Isn't it known that no matter how heavy the object is it's going to fall with the acceleration of 10m/s^2. Be it a table tennis ball or a submarine.
I guess where I'm going with this is that every phone hits the floor with more or less the same speed but at different angle, and that's what kills it. Check the web for shattered iPhones, that weight roughly third less than 820. It's probably because of no gorilla glass that shattering happens, I owned Trophy before my 820 and it fell numerous times and it never shattered even though it weights almost as much as 820 (140g vs 160g).
05-13-2013, 07:51 AM #17
- 3 Posts
F = ma
In this case, gravity provides the acceleration of ~9.8m/s2. The mass is independent of the acceleration (gravity). A block of styrofoam will hit the ground with less force than a block of concrete - same acceleration (gravity) but different mass.
05-13-2013, 09:36 AM #19
- 434 Posts
he's right. for deformation on a fall, you need the speed (same with every phone, s = 1/2*a*t^2), but the momentum p is important.
it's p = m*v, and following the conservation of momentum, the kinetic energy (the fall) needs to be conserved. Result: deformation of the phone. :P
- 05-13-2013, 11:36 AM #21
So, every phone hits the ground with the same speed. It depends on it's structure how it goes through the impact, and if it hits wooden floor they may even bend a bit under heavier phones, resulting in lower negative acceleration. It's simple really.
06-13-2013, 03:56 AM #22
- 74 Posts
couple of points:
I drop my 820, almost on a daily basis as I am too clumsy and my son is too naughty. Sometimes the height is about 3 feet, and at times it is even 5 ft or more. However, I have never damaged my screen due to it. I had to change the screen once though. That time it fell off from my shirt pocket, on to the road and couple of vehicles went over it. Initially I thought, I have lost this phone forever. But to my pleasant surprise the phone was still working even though I could not do anything as the touchscreen was gone, so there were no commands at all. I got the screen replaced and it is as good as new!
The point about weight being a factor in phone damage: i-phones and galaxies are much much lighter that lumias. Just try dropping the two from same height and you can see for yourself which one breaks first. I have seen iphones falling rather gently and yet getting damaged and my Lumia falling regularly and working fine.
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