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US carriers halt Samsung Note 7 sales and replacements

bbc.com

51–60 of 139 posts

Re: US carriers halt Samsung Note 7 sales and replacements

#51
post #7

It still seems to be OK to bring Note 7s on airplanes. Not bottles of water, though, that's too dangerous.

You can bring bottles of water onto airplanes...

Only if you buy is after security. Maybe we're gonna have to buy phones now too :)

Re: US carriers halt Samsung Note 7 sales and replacements

#52

Why did Note 7's have this problem? I assume the fault is entirely in the battery (?), so did Samsung change how the batteries were manufactured this year? Does the Note 7 have power demands that mean they can't go back to tried and tested battery manufacture? (Hoping there are EE's or manufacturing people here that might have some educated guesses)

I read on an earlier discussion that the issue is caused by the positive/negative battery contacts pressing together and short-circuiting as a result of mechanical distress, so the fundamental issue would be due to how the battery is situated within the device.

Looks like the same thing with the Boeing 787s batteries. I'm not sure if it has to do with geometry, manufacturing defects or something like that

Re: US carriers halt Samsung Note 7 sales and replacements

#53

Why did Note 7's have this problem? I assume the fault is entirely in the battery (?), so did Samsung change how the batteries were manufactured this year? Does the Note 7 have power demands that mean they can't go back to tried and tested battery manufacture? (Hoping there are EE's or manufacturing people here that might have some educated guesses)

This is the best writeup I've seen of how this happened:

https://www.bloomberg.com/news/articles/2016-09-18/samsung-c...

tldr plus my speculation:

* Leaked iPhone 7 specs made Samsung shoot for the moon with Note 7 design

* Specs designed in boardroom called for Note 7 be lighter, shorter and narrower than iPhone 7+ but also have a larger screen, a significantly larger battery and a lot of internal room taken up by the stylus (and sure insert headphone jack punchline here).

* This is a hard problem, otherwise you'd think Apple would ship a 20% larger battery too.

* Design on all the massive revisions started late and launch was moved up so design timeframe was enormously compressed

* Engineers at Samsung don't have standing to tell execs something can't be done.

* And so mistakes were made somewhere between not having enough time to do it right and being asked to do the improbable.

Re: US carriers halt Samsung Note 7 sales and replacements

#54

It's a sad end to what was a great phone otherwise.

That's a big otherwise... it's not a great phone at all, if it's so badly engineered that it can catch fire...

May be it's just the external battery supplier's issue, we're yet to find out. I'm talking features/performance/Software/UI wise it's a great phone. Yes, the battery department totally let it down.

Re: US carriers halt Samsung Note 7 sales and replacements

#55
post #29

Earlier quoted context omitted.

Yeah, and it costs 10x as much as in a regular super market, despite being the same water. I really, really dislike flying. Not because of the flying itself, but because of being treated like a potential terrorist all the time.

So carry an empty bottle/tumbler/thermos and fill it up at the water fountain?

Commonly there is no water fountain.

Re: US carriers halt Samsung Note 7 sales and replacements

#56
post #7

It still seems to be OK to bring Note 7s on airplanes. Not bottles of water, though, that's too dangerous.

I see the point you're trying to make; the authorities apparently accept a risk in terms of expensive equipment produced by corporations with strong lobbying funds, but decline that risk in terms of bottled liquids.

One fact that is overlooked is that there is actually a limit on the lithium-equivalent permitted per passenger just like there is a liquid-volume limit.

Last time I checked, the total maximum carry-on lithium-equivalent was 25 grammes which was about four smartphone batteries or two-dozen AA cells. Now as to whether that's an acceptable risk is for someone else more knowlegeable to evaluate.

Re: US carriers halt Samsung Note 7 sales and replacements

#57
As someone outside the US, I first associated "US carriers" with US Aircraft Carriers. I thought this was about the navy banning Note 7 aboard the carriers, before sales and replacement brought me back to thinking this is about mobile carriers. In India we just call them mobile networks :)

NLP and AI is tough, no wonder.

Re: US carriers halt Samsung Note 7 sales and replacements

#58

I doubt Samsung will try to find another sales channel for them in North America. Going back to the feature-phone era, one of their most important advantages over their handset competitors has been their loyalty to the big phone companies. Doing an end-run around them to sell directly to their customers seems...unseemly. So what happens to all of these Note 7's? Do they just get buried in a ditch somewhere? From read…

Samsung said in a statement last month that the issue of overheating was caused by a "rare" manufacturing error that resulted in the battery's "anode-to-cathode [negative and positive electrodes]" coming into contact. Looks like the fault is in the batteries, internal shorts are both uncommon and also extremely dangerous since they will essentially dissipate all the energy in the cell as heat and can't be stopped ext…

>This is partially why I'm wary of devices with batteries which aren't easily removable.

Why? It seems like the batteries burn out fast enough that it wouldn't be possible to safely remove one once it starts smoking. In any case doing so might save the phone - unlikely but it might - however now you have a completely naked ignited incendiary device lying on your carpet, rather than one enclosed in a protective case. That sounds to me like a worse situation to be in. And anyway now you've saved your phone at great personal risk, what are you going to do with it? Put another Note 7 battery in it and keep on using it? I'm curious what your reasoning is here.

Re: US carriers halt Samsung Note 7 sales and replacements

#59
post #4

I don't know how fatal this will be for Samsung next time they go out and sell phones; but people have got a taste of buying from a company that doesn't have any sales or customer rep centers easily accessible where people can go and complaint. I really hope it doesn't turn out to be fatal for them but I also hope it breaks the Samsung monopoly over Android and let brands like LG, HTC shine.

> it breaks the Samsung monopoly over Android

Is there a Samsung monopoly over Android? Apparently Samsung sells about 25% of smartphones https://www.idc.com/prodserv/smartphone-market-share.jsp and 85% of sold smartphones are Android... so certainly not a monopoly.

Re: US carriers halt Samsung Note 7 sales and replacements

#60

Why did Note 7's have this problem? I assume the fault is entirely in the battery (?), so did Samsung change how the batteries were manufactured this year? Does the Note 7 have power demands that mean they can't go back to tried and tested battery manufacture? (Hoping there are EE's or manufacturing people here that might have some educated guesses)

Mobile devices have been using custom-desgned batteries for the last 20+ years. In this case, the battery manufacturer couldn't meet these particular design constraints.

> Mobile devices have been using custom-desgned batteries for the last 20+ years.

Most have just been differently packaged units containing the same type of cells.

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