Samsung Galaxy Note 7 wamechemsha.

[Bavaria]

Samsung finally explained why Galaxy Note 7 batteries are exploding
By Chris Smith on Sep 8, 2016 at 11:23 AM
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Image Source: Zach Epstein, BGR


Galaxy Note 7 batteries keep exploding, pushing the tally well above the 35 incidents Samsung acknowledged in its global recall announcement. The company identified the batteries made by Samsung SDI as the cause of these explosions and decided to recall all 2.5 million Galaxy Note 7 units that were shipped to retail partners and consumers. If you have a Galaxy Note 7, this post will explain how to trade it in for a new model, a different model or a refund.

Samsung has been fairly open throughout this process, but the company never really explained what exactly is causing its Note 7 batteries to explode.


MUST READ: I already hate my new iPhone 7 and I don’t even have it yet


Now, Samsung has posted a Q&A section on its UK news portal where it announced the Galaxy Note 7 where it explained what the issue is.

“Based on our investigation, we learned that there was an issue with the battery cell,” Samsung explained. “An overheating of the battery cell occurred when the anode-to-cathode came into contact which is a very rare manufacturing process error.”

There you have it. It’s not a detailed description of what happens, but if the anode and cathode come into direct contact, the results are not good.

The company also said that this is a problem with the battery cell and it has nothing to do with the device. Furthermore, the problem only affects the Galaxy Note 7, and it doesn’t affect other Samsung phones. “This is only limited to the Galaxy Note7. Each model has a different design and manufacturing process,” Samsung said.

What Samsung failed to clarify is the company responsible for the entire mess. Some say that Samsung SDI is to blame for the exploding Galaxy Note 7 batteries, but Samsung would not confirm that. “In order to meet market demands, we are working with multiple suppliers,” Samsung said. “Unfortunately, we will not be able to confirm this as we work with several suppliers. We are currently working with all of them to protect our customers’ safety first and foremost.”

Tags:
Galaxy Note 7, Samsung
Via:
Phone Arena
Source:
Samsung

 

[PureView zeiss]

Samsung SDI ipo chini ya Samsung electronic co ltd,jamaa wamechemka mno hii yote Ni tamaa ya components zote ziwe chini yake yaani kuanzia chipset,display,battery,sd card na vingine vyote watengeneze wao.

Battery za li-ion,lithium mbona zipo Poa Sana kwenye batteries draining consumption sasa angalia huko marekani wamepiga marufuku abiria wasisafiri na note 7 kwenye ndege na hata Australia mashirika 3 ya ndege wamepiga marufuku Kwa abiria wasisafiri nazo,Kwa upande WA marketing hapo kashajiuwa na hata Kama hii ishu Ni sabotage Kama baadhi ya wateja wanavyodai basi hii Ni kiboko

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[General Mangi]

Sinunui Samsung maishaa

 

[Fundisi Muhapa]

Duh... haka ka edge nako ni hvyohvyo?

 

[Bavaria]

Florida man's vehicle catches fire after charging Galaxy Note 7 explodes
Published September 09, 2016
FoxNews.com
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A Florida family learned the hard way over the Labor Day weekend why the new Samsung Galaxy Note 7s were recalled.

Fox 13 News reported that Lydia Dornacher, of St. Petersburg, came home from a yard sale Monday and was unloading her husband Nathan’s Jeep Grand Cherokee. While she was unloading, Nathan had left his Note 7 in the center console of his vehicle to charge.

Lydia Dornacher said she sent her 8-year-old daughter, along with the family’s service dog, to get back in the vehicle because they were going to run more errands. She then said the dog knew something was wrong and when her husband looked outside and his Jeep was engulfed in flames.

St. Petersburg fire officials came to put out the fire.

Nathan Dornacher told Fox 13 News that he loved his vehicle and had put a lot of money into it. He will now have to find a new ride and a new cellphone.

Samsung said in a statement to the station that it was aware of the latest incident.

"We are aware of the incident and we are working with Mr. Dornacher to investigate his case and ensure we do everything we can for him. Consumer safety is Samsung's highest priority. With regard to the Galaxy Note7, we are asking owners to take advantage of the Product Exchange Program announced on Friday of last week,” the company said.

Samsung issued the recall last week in 10 countries after 35 instances of Note 7s exploding or catching fire. Customers who had already bought Note7s could swap them for new smartphones in two weeks.

Florida man's vehicle catches fire after charging Galaxy Note 7 explodes | Fox News

 

[Bavaria]

Samsung is recalling 2.5 million Galaxy Note 7 smartphones over exploding battery fears
And now it looks as if the FAA might ban them from planes.

PETER DOCKRILL
7 SEP 2016

In what might be the biggest smartphone recall ever, Samsung has halted sales of some 2.5 million new Galaxy Note 7 smartphones, amid ongoing reports that a flaw in the device's batteries is making them catch fire and explode.

Adding to the controversy, the FAA might also ban them on planes, meaning travellers will be prohibited from taking a potentially faulty Note 7 on board aircraft in the US.

Last week, Samsung announced that it had voluntarily initiated its own product recall, but if it elects to institute a formal process with the US Consumer Product Safety Commission, the FAA would have to enact the ban.

"If the device is [formally] recalled by the manufacturer, airline crew and passengers will not be able to bring recalled batteries or electronics that contain recalled batteries in the cabin of an aircraft, or in carry-on and checked baggage," an FAA spokesperson told Matt Novak at Gizmodo.

The South Korean electronics company delayed shipments of the smartphone last week, after several people posted images online of burnt, broken Note 7s. It then announced a recall of all 2.5 million devices on Friday.

"[As of September 1], there have been 35 cases that have been reported globally, and we are currently conducting a thorough inspection with our suppliers to identify possible affected batteries in the market," the company announced in a statement. "However, because our customers' safety is an absolute priority at Samsung, we have stopped sales of the Galaxy Note 7."

Samsung says it has conducted a "thorough investigation" of the issue, and claims the flaw stems from a problem with the Note 7's battery cell. Due to an undisclosed manufacturing defect, the lithium ion battery cell can overheat when charging, leading in some instances to the battery catching fire or exploding.

We've seen this issue flare up before with devices like ride-on 'hoverboards', leading to many airlines and aviation authorities around the world banning them on planes last year after a series of dangerous incidents.

"If there is an inherent defect in the cell, it will go off at some point," materials scientist Jay Whitacre from Carnegie Mellon University told Wired at the time.

"Small defects in the manufacturing or materials stream lead to the plus/minus sides of the batteries being shorted with each other after a small amount of use. When this happens, especially when the batteries are charged, a lot of heat is generated inside the cells and this leads to electrolyte boiling, the rupture of the cell casing, and then a significant fire."

While the amount of Galaxy Note 7s that are considered to be at risk is ultimately small – it's estimated that only 24 out of every 1 million phones are affected – Samsung has no option but to recall every device manufactured in the interests of safety.

"Products installed with the problematic battery account for less than 0.1 percent of the entire volume sold," a Samsung spokesperson told the media last week. "The problem can be simply resolved by changing the battery, but we'll come up with convincing measures for our consumers."

Those measures will differ in every region, but in the US at least, Samsung is offering a product exchange program. Galaxy Note 7 owners can swap their faulty device for a new model (expected to become available in the next week or so), or receive an S7 or Edge smartphone instead.

In the meantime, if you're the owner of a Galaxy Note 7, it'd be advisable not to use the device, and look into organising your replacement as soon as possible. Several US carriers have released their own recall information for their customers.

With Samsung estimated to have already sold around 1 million Galaxy Note 7s since the smartphone was released just last month, it's a major headache for consumers affected by the recall.

And for the company itself too – especially with arch-rival Apple set to announce the iPhone 7 in the next 24 hours.

Nobody knows just how big the fallout will be from this – either financially, or in terms of consumer sentiment – but recalling more than 2 million phones isn't going to be quick, fun, or painless.

But, really, the best we can hope for in this kind of situation is that nobody gets seriously injured or killed while the faulty devices remain in use.

Speaking to media last week, Samsung's smartphone chief, Koh Dong-jin, was clearly unhappy about the problem – one which may ultimately end up costing the company several billion dollars to fix.

"I can't comment on exactly how much the cost will be," he said, "but it pains my heart that it will be such a big number."


Samsung is recalling 2.5 million Galaxy Note 7 smartphones over exploding battery fears

 

[Bavaria]

SMOKE AND FIRE WAS POURING OUT'
Samsung urges customers to switch off Galaxy Note 7 phones after ANOTHER explosion


Tech fan reveals the terrifying moment his phone 'went pop' and burst into flames

by JENNIFER DUDLEY-NICHOLSON
6th September 2016, 10:13 am


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SAMSUNG has urged thousands of customers to switch off their Note 7 smartphones after one of the devices exploded in an Australian hotel room.

The company’s Australian wing advised the nation’s 51,060 Galaxy Note 7 buyers to turn off the handsets immediately and return them to stores as a precaution in part of an unprecedented, potential billion-dollar worldwide recall.


3
Tham Hua’s Samsung Galaxy Note 7 smartphone reportedly burst into flames while charging overnight, causing $1800 damage to his hotel room
The tech giant also revealed it would provide free “courtesy” smartphones to Australian Galaxy Note 7 buyers from Wednesday, and would offer refunds to those unwilling to wait up to a month for a repair or replacement.

Samsung issued the advice late on Monday night, recommending users backup their data and turn the potentially dangerous phones off, return them to the company, and “use an alternative device until a remedy can be provided”.

The world’s leading smartphone maker also said it was “currently investigating a small number of reported incidents” in Australia, which had yet to be confirmed as caused by faulty batteries in the Note 7 smartphone.

Melbourne business analyst Tham Hua said his Samsung Galaxy Note 7 smartphone had shown no signs of overheating before it erupted into flames while connected to the power point beside his hotel bed on Monday.


3
An Australian Samsung Galaxy Note 7 smartphone reportedly burst into flames and left scorch marks on a hotel be
“It started with a fizzy noise and then a pop, and then flames and smoke came out,” Mr Hua said.

“I woke up when it popped and, when I looked, fire and smoke were pouring out from it.

“I had to throw it down to the floor and disconnect the cable, and hit it with the pillow to stop the fire.”

Mr Hua said the fire left a minor burn on his finger, as well as scorch marks on the bed sheets and carpet.

The hotel billed him $1800 for the damage, which Samsung had offered to cover.

Mr Hua said he had returned the smartphone, which he purchased directly from Samsung’s Australian online store, to the company for testing, and shared his story with News Corp in the hope it might convince others to return their Galaxy Note 7 smartphones.

“I know people (who) have the same phone and despite knowing of the recall still refuse to stop using it,” he said. “So I hope this will reach out to them.”

Samsung said it had received 35 reports of the Note 7 catching fire in South Korea, the United States, and Taiwan in the fortnight following its launch, but this could be the first case of an Australian phone fire.


3
Samsung Galaxy Note 7 smartphones on display at a Samsung showroom in Seoul
Samsung Electronics Australia mobile vice-president Richard Fink said the “voluntary” recall was issued as a precaution to protect its customers.

“The safety and ongoing satisfaction of our customers is our top priority,” Mr Fink said.

“We know our Galaxy Note 7 customers are our most loyal customers and we are taking a proactive approach to support them.

“We are asking customers to contact Samsung or their place of purchase to arrange a suitable courtesy smartphone or refund.”

Samsung Galaxy Note 7 users who purchased their phones directly from Samsung are advised to contact the company to organise a “courtesy device” or refund, with new Note 7 devices expected to be available “within three to four weeks”.

Note7 buyers who bought their phone from other stores, including phone carriers, were advised to contact them to organise interim devices, replacements or refunds.

Telstra, Optus, and Vodafone will participate in Samsung’s repair and replacement program, and Telstra will offer loan phones and the choice to swap handsets with no early termination fee.

The unprecedented worldwide recall of 2.5 million Galaxy Note 7 smartphones is expected to cost more than $1 billion and will come at a difficult time for the tech firm, with rival Apple expected announce a new iPhone later this week.

This story originally appeared on news.com.au.

Samsung urges customers to switch off Galaxy Note 7 phones after ANOTHER explosion

 

[Bavaria]

Why Are Samsung's Galaxy Note 7 Phones Exploding?

JV Chamary ,

Contributor

I cover the science of life.

Opinions expressed by Forbes Contributors are their own.

Samsung Galaxy Note 7 after catching fire (Image: Ariel Gonzalez / YouTube)

Samsung has recalled its new Galaxy Note 7 smartphone after reports it can overheat and even explode. The company said it had “conducted a thorough investigation and found a battery cell issue.”

According to Samsung, there have been 35 reported cases and 2.5 million phones have been produced. While that figure is relatively high (batteries typically fail at a rate of 1 in tens of millions) it’s still far from common.

“Battery failures are exceedingly rare,” says Donal Finegan, a chemical engineer at University College London. “Any kind of fault does garner a lot of media attention and can really affect the reputation of a product that relies on the battery.”

Like many rechargeable devices, phones use lithium-ion cells. But what makes these batteries great at powering gadgets also makes them vulnerable to catching fire, says Finegan. “They are so energy-dense and can operate under such high power that they can combust in a particularly catastrophic way.”

Heat sources

Overheating is obviously driven by temperature rise. This can be due to the environment, such as a hot car in summer, or through heat transferred to a battery from another component inside the phone. Heating can also begin within a battery itself, which is what’s behind the “battery cell issue” in Samsung’s Note 7.

Recommended by Forbes

Samsung Galaxy Note 7 (Image: Samsung)

One cause of combustion is a problem with the “battery management system” that monitors the electrical current and normally tells a chip inside the phone to stop the current once a battery is fully charged. If either the system or chip is faulty, a battery can enter a state of “overcharge”.

“The battery can continue to charge and can become even more unstable and eventually just burst into flames itself, without any kind of external heating,” Finegan explains.

Phones don’t contain fans or the liquid cooling mechanism you find in a gaming PC or electric vehicle, so heat must radiate out into the surroundings. If that doesn’t happen, heat is generated faster than it can be dissipated or lost.

When a battery reaches about 100ºC (200ºF), its materials start to break down, triggering a chemical chain reaction that releases its own energy. This accelerates the warming and leads to a snowball effect — a process called “thermal runaway”.

“The snowball effect happens so fast that, within a second, the entire cell goes from being intact to being completely destroyed,” says Finegan.

So what triggers the catastrophic failure that causes explosions?
What triggers thermal runaway inside a battery?

Heat spread

The changes that allow heat to spread through a lithium-ion cell were recently revealed by Donal Finegan and colleagues in Paul Shearing’s lab at University College London (UCL).

Researchers traditionally rely on X-ray photos to examine a battery before and after failure, but Shearing’s team have simulated a range of operating conditions — up to an abnormal 300ºC (over 500ºF) — and used thermal imaging to see what happens during thermal runaway. The UCL team also employed high-frequency X-rays to create 3D images of the aftermath.


Lithium-ion cells are made-up of multiple layers, each consisting of a positive and a negative electrode, separated by an insulator. During charging, lithium ions flow from positive to negative, and ions return to the positive electrode as the battery drains.

When materials inside a cell move around, the electrically insulating layer that separates electrodes can tear, causing a short-circuit that creates a spark. “Even the tiniest spark inside a battery is enough to initiate the thermal runaway process,” says Finegan.

Recommended by Forbes
Lithium ions are carried by an electrolyte solution, which is a volatile liquid. Finegan’s X-ray snapshots reveal that when heated, electrolytes produce gas bubbles that causes a cell to lose structural integrity and can create the short circuit. His videos show that heat spreads across each electrode layer and between layers until the entire battery gets too hot.

Cylindrical battery cells with (a) and without (b) an internal support (Image: Finegan et al / Nature Communications)

The thin, rectangular battery inside a phone has repeating layers of electrodes, which resembles the pages of a notepad, whereas layers in cylindrical cell (like a standard AA battery) are rolled-up like a newspaper. Thermal runaway is similar in both arrangements.

Rectangular batteries are more prone to failure compared to cylindrical cells because the latter usually have a central support that helps prevent internal layers from deforming, as well as a “rupture disc” that will cut-off the current when stretched. Phones don’t have such secondary fail-safes because small size is a desirable feature.

Batteries aren’t as safe as they could be, partly because scientists must cater to the demands of manufacturers, who prefer high performance — but less stable — cells. “They usually try to use the most highly energy-dense material, so we have to keep up with that,” Finegan points out. “It’s not as simple as saying, ‘Just use a safer material’.”

The UCL team is currently working with NASA to develop devices that deliberately cause a short circuit at a known location. This has enabled the researchers to build a map that predicts how heat spreads through a cell. “This map of propagation allowed us to then suggest why, for example, one battery explodes and bursts its contents out into the neighboring area,” says Finegan.

Chemical engineering could help the phone industry reduce the risk of battery failure in future. “Hopefully this information will be used by the industry to try and improve their designs and to prevent the worst-case scenario of the really most catastrophic failures,” says Finegan. “That’s the aim of what we’re doing right now.”

Why Are Samsung's Galaxy Note 7 Phones Exploding?

 

[Bravo Mike]

Hawa wamarekani kwa kupenda kutengeneza scenario za kulipwa AKA damages hawajambo kwa kweli, hapo huyo jamaa wa Florida lazima adai a cool $ 10m. Kesho mwingine atasema toka aanze kutumia hiyo Note 7 kichwa kinamuuma sana atadai fidia..

 

[Mukulu wa Bakulu]

Mimi sioni kama wamefail, haya mambo ya mulfunctioning kwenye mambo ya electronic ni mambo ya kawaida sana, samsung sio wa kwanza na hawatakua wa mwisho.

Mwanzoni mwa mwaka huu apple walirejesha mamilioni ya adapters ambazo zilikua zimeuzwa huko ulaya na nchi nyingine kutokana na kua zilikua zinasababisha shoti ya umeme.

Miaka michache iliyopita boing walipata matatizo ya betri kulipuka kwenye ndege zao za dremliner 787 kutokana na malfunctioning ya lithium batteries kama ilivyo kwa samsung.

Binafis bado sijaona samsung kama wamechemka, na kwa vile wamegundua tatizo haliko kwenye hardware ya simu ni betri basi tatizo limeisha.

 

[PureView zeiss]

Mimi sioni kama wamefail, haya mambo ya mulfunctioning kwenye mambo ya electronic ni mambo ya kawaida sana, samsung sio wa kwanza na hawatakua wa mwisho.

Mwanzoni mwa mwaka huu apple walirejesha mamilioni ya adapters ambazo zilikua zimeuzwa huko ulaya na nchi nyingine kutokana na kua zilikua zinasababisha shoti ya umeme.

Miaka michache iliyopita boing walipata matatizo ya betri kulipuka kwenye ndege zao za dremliner 787 kutokana na malfunctioning ya lithium batteries kama ilivyo kwa samsung.

Binafis bado sijaona samsung kama wamechemka, na kwa vile wamegundua tatizo haliko kwenye hardware ya simu ni betri basi tatizo limeisha.

Mkuu sio kama wamefeli bali kimauzo na shares nyingi zimeanza kushuka hasa kwenye upande wa mobile,Kwa udhaifu huu WA batteries mwanzake apple ametabiriwa kufanya vizuri kuliko previous selling huku nae lg v20 atacover nafasi ya Samsung
Tusubiri tuone hili game litaendaje

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[Malaika wa Kifo]

Kuna rafiki yangu aliwahi kuniuliza, "Hizi Windows Phone unazipendea nini?" Aliniuliza hivi baada ya kuona tangu zinaingia ndio simu ninazo nunua sijawahi nunua Samsung wala wenzake na nikihama naenda Apple,uchumi ukishuka narudi Windows Phone.

 

[PureView zeiss]

Kuna rafiki yangu aliwahi kuniuliza, "Hizi Windows Phone unazipendea nini?" Aliniuliza hivi baada ya kuona tangu zinaingia ndio simu ninazo nunua sijawahi nunua Samsung wala wenzake na nikihama naenda Apple,uchumi ukishuka narudi Windows Phone.

Window phone Ni ya ukweli mno

Sent from mTalk

 

[Bavaria]

Hawa wamarekani kwa kupenda kutengeneza scenario za kulipwa AKA damages hawajambo kwa kweli, hapo huyo jamaa wa Florida lazima adai a cool $ 10m. Kesho mwingine atasema toka aanze kutumia hiyo Note 7 kichwa kinamuuma sana atadai fidia..

Samsung makes billions of dollars. Na kutengeneza simu zenye defects ni uzembe wao.

Kwahiyo kila mtu atachukulia loophole hiyo kujinufaisha na iwe fundisho safari ijayo.

Kama wewe usalama wa maisha yako sio kipaumbele basi ujue kuna ambao maisha yao ni kipaumbele tosha.

 

[Bavaria]

Kuna rafiki yangu aliwahi kuniuliza, "Hizi Windows Phone unazipendea nini?" Aliniuliza hivi baada ya kuona tangu zinaingia ndio simu ninazo nunua sijawahi nunua Samsung wala wenzake na nikihama naenda Apple,uchumi ukishuka narudi Windows Phone.

Thats whatsup.

Nipo radhi nitumie windows phone ya 200,000 kuliko nitumie Samsung ya 800,000.

Uchumi ukirudi narudi kwenye iPhone.