Samsung conspiracy

Hey, Samcuck. How’s it hanging?

stuxnet type things don't need backdoors, but hardware backdoors enable real time espionage no matter what "security measurements" you take in the OS.

No you're retarded.

Yes it can you dumb shit, battery controller is hooked up to all of that shit and it's possible to fuck it up programmatically.

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Gotta say it is pretty suspicious given Samsung makes generally stable equipment and nobody caught it during quality control.

Im not yet that far in college BUT in a lecture about heat transfer a prof brought up a Note 7 and we examined it. He said it was a design mistake, the CPU was too close to the battery, heating it up. THen there was almost no way for the battery to "bleed off" excess heat because of some bullshit "open space" between the battery and the outer shell (usually the battery is so close that almost no air is in between and thus the battery heats the casing, heating the enviroment. On a note 7 theres an insulating layer of air within the phone)

The "explosions" orruc when the battery gets heatet to a point the plastic casing melts, exposing the Lithium wich oxidizes rapidly in contact with air and then cant be stopped.

If you look at vids of this you can see it, it starts off rather small and then quickly goes into a full burn lasting for about 10-30 sec. after that the lithium is fully oxidized and the reaction fades out.

This.

To be fair OP their washing Machines are exploding too, it could just be that they use cheap asian labor and this sort of shit is inevitable

I like your theory though, and It is entirely plausible

All phones have battery extremely close to the scorching hot processor, and none of the phones on the market have any kind of heatsinks, altogether. And none of them having such issues. All of that shit is standard but only those specific devices after those specific events are having any issues. It's sketchy as all fuck.

Also, the processor doesn't gets nearly hot enough to damage the battery nor plastic casing, so that's an instant bullshit alarm.

in addition to this:

It's not engineers deciding the look of a phone, it's designers. They design a phone so the "mass market" will think its cool and all. The engineers then have to figure out how to put all the fancy tech into the small space given to them.
So this whole thing went wrong on different levels.

1. Designers giving the engineers too little space for all the fancy new tech theyre supposed to implement.
2.Engineers failing to test the phone properly (heat transfer is a common test but rather intensive as you have to test alot of variables(outside heat, compresssion etc.))
3. Faulty design of the battery. (Everyone wants more battery live so ppl just stuff more of it into the device, instead of checking for "critical masses").
4. Wrong use of the device. Afaik those devices who exploded were either connectet to powerbanks or used excessively before it happened (using alot of CPU).

Play a 3d game on your phone for 1-2 hrs. open it up and touch around the cpu side. They get insanely hot.

But Samsung already do install backdoors user.

Check out the Replicant project (A distribution of Android that respects the users' freedom):

archive.is/T5kzX
http:// www.replicant.us/freedom-privacy-security-issues.php

Bullshit. The charge controller runs firmware which can be updated or patched.
Think of overclocking a Graphic Card.

Idd this may be possible.

Run a programm that just heats up the CPU thus causing the inflammation.

interdimesional avatar of wulfthrapxiczackquixotmajillicutty here, There is no way a 3rd dimesion mortal could farm loosh with that shitpost. user just fucked up is all.

The "insanely hot" amounts to maybe 80 degrees C, that's nowhere hot enough to actually damage anything. Plastic starts to pick damage at 400 degrees and up, while soldering tin will completely come off at 250; the battery chemical mix has a lot higher heat resistance so the shell will disintegrate and allow oxygen in sooner than exothermic reaction can kick off by itself.

If that was the case then phones would not be brickable.

The charge controller (The chip that chooses how much power goes to the battery) is controlled by software.

It is, in effect, its own small computer.

It can be programmed to route all the power coming in from the charger to the battery.

I really wanted the note 7 too, tis a shame

This is a slide/disinfo thread, and especially doesn't belong on Holla Forums. Take it to Holla Forums and have them laugh at you.

They are not. You can always debrick phones, it's just that you might requiere special equipment or knowledge in order to do that.

To expand on this, the way the amount of power is regulated is this:
It turns the full supply on for a moment, then off, then on, etc. This is "smoothed" by a capacitor, which is a component that takes a charge fast and releases it slowly, so it is averaged. The amount of time it is on/off is called the duty cicle.
USB provides 5 volts. At half duty, that becomes 2.5 volts.

The way a battery is charged, is you feed it a small voltage over the one it is currently at, until it reaches the maximum allowed by the battery chemistry (3.7 volts for lithium-ion, IIRC), or it won't go up (battery is near end of life, lower charge). Sometimes you keep it a bit under that to achieve higher battery longevity (full charge damages it ever so slightly). You also feed it a low amperage, as using a high one will degrade the battery. At lower temperatures you can use more amperage.

Fast charge in modern phones is achieved by feeding high amperage to the battery in a controlled manner, monitoring the temperature, and shutting it off until it cools. A problem arises, and it is that wires will take so much amperage until they act like a resistance and become hot. Thicker wires take more amperage.

Since Watts=Voltage*Amperage, and you can user higher voltages on the same wire without heat, "fast" chargers will, on request, provide more voltage, say 9 volts (fairly common).

Now, imagine you feed that battery 9 volts, full duty cycle (always on) and disregard the temperature.

This can happen easily without sabotage because the charge controller crashes, or because the temperature sensor fails in a way that makes it seem like the battery is cold.

Also, if you short-circuit a battery, the wires going from one terminal to the other will act like a resistance, and you will be drawing as much power as the battery can provide (which will cause it to heat, since that is way over spec for more than short periods without cooldown).

really with lithium ion batteries, the trick is to *not* make them explode. I remember when e-cig makers realized a lack of proper ventilation of the battery compartment could lead to an exploding battery.
Could you possibly rig a defective device to go off by overcharging the battery? Certainly. But that's no proof of anything when the design is flawed and can lead to the same thing happening through normal use. I can't think of any good reason to think why Samsung would refuse to include backdoors, either, unless they just wanted to keep the data for themselves.

it only affects one specific model jackass

revenge would be their whole lineup blowing up in niggers and sheboons faces

You charge lithium batteries in constant current mode, then finalizing step is done in constant voltage mode at the level of fully charged battery, that's usually tiny currents but the point of that is so that the battery drains however much charge it can actually drain.

no retard, that would give it all away, and they want to hurt samsung to obey them, they don't want to end them

It could be any number of reasons why any number of people don't want people to have these phones

Have you personally seen one explode? For all you know there's just some pics of burned phones on the internet

Interesting theory for sure, but battery temp isn't controllable from software, It's maybe possible to overheat the phone in other ways but they'd likely be noticed and not be enough to cause the battery to combust. I'm not sure how the firmware sits on smartphones but i know it has some control over charge rates. So your answer might be in there. Most likely though this kind of attack would have to be carried out at the point of manufacture.

this whole fucking scenario implies this event is controlled by software

and that said event is some sort of revenge or force for compliance, having it look like random chance is fucking retarded, getting in an elevator with samsung engineers and farting would be more effective

this thread is fucking low tier sliding

If you're right user, then it is possible to achieve this result through simply overworking the processor. So a virus could in theory do it.

user, I'm not saying that OP is right, but you sound a bit like an idiot.

Either you're a shit electrical engineer or a shill.
Oh well, there you go.

Word to the wise, lithium batteries can't simply be hooked up to a DC current; that current has to be monitored (and temperate, too, preferably) or else the battery will bulge, boil, or explode. The battery charger in these units is likely attached to an internal bus so it can report the charge/discharge state. Hacking the charger's firmware remotely ought to be possible.

Not saying this is what happened, but I wouldn't be surprised. Certainly the statement "There's no way a software virus at the OS level could do jack shit to the battery." is a lie

If you think your computer is secure, I have bad news for you son

Is the phone able to flash the firmware in the battery microcontroller?

And I didn't believe the OP for the first 2 mins and 33 seconds.

Quads confirm.

Bullshit, it was already found out they can make tech to kill CPUs. Under the right conditions I could see them finding a way to turn off any cooling and cause the devices to explode. Also, it's possibly the devices were tampered with somehow too.

There's like a couple dozen reports of "exploding" phones and millions of them were sold so if it was a virus doing it then the people who made it are mentally handicapped

Don't be retarded, there's no active cooling in phones. The only thing they can do is throttle the CPU.

Iphone 2 also had this problem (that's why almost nobody have it today).

Quads don't lie.

a shill thread if I ever have seen one

Samsung Electronics Recalls 2.8 Million Washing Machines in U.S.

bloomberg.com/news/articles/2016-11-05/samsung-electronics-recalls-2-8-million-washing-machines-in-u-s

Checking those doubles to tell you China, of course. And probably for something like a dollar a unit before they ship them to the US in a fancy box and charge $600+ for them.

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Yeah you can, I remember a defcon talk or a blackhat conference where a guy showed that you could on android devices.

Engineering intern here.
Promary failure is exothermic, but lacks characteristic hole through the screen, focussing primarily on edge heating.
Contrary evidence of discolored and intact plastic indicates most common failure does not allow lithium cells to fraticide.
Further marks do not show characteristic preggers bulge as ethylene undergoes catalytic breakdown into hydrogen and lithium expands into oxide.
Char marks show open flame does occur, alongside bubbling and discoloration.
Prognosis based on small number of failures, defective cells undergoing rapid charge profile fail catastrophically.
Safety features act to prevent immolation and continuing combustion of battery.
Most likely cause is specifc combination of nonstandard charger and defective battery.
Supported by new factory model and similar cases with other type c rapid charge devices.
Further analysis required on circuit path for charging from plug.

It's of course possible, but do we have any evidence that Samsung refused to install a backdoor? They're a South Korean company I think, and as far as I know South Korea worst Korea is generally pretty cooperative with US interests.

EE here,
Most devices have an mechanical asic chip(can't modify it), when the battery is outing a certain amperage it changes charging speed. It's shitty chineese hardware knockoffs most likely. Otherwise the battery is probably getting heated until it shorts out when the electrolyte material melts. sage

Oh you sweet naive summer child…

in order to use software to damage to hardware you have to either:
A.) exploit a deficiency in the hardware (a deficiency which you are claiming doesn't exist)
B.) reprogram it on the firmware level

The firmware is often not something you could change without physical access to the device.
If you could access the firmware in such a way that would still be a fuckup on Samsung's part.

Don't even bother, they'll just call you a shill and keep pretending jewish computer viruses can explode batteries.

Yesterday Samsung recalled 2.5 million top loading washing machines. Those bitches catch on fire as well. The margins are super thin so they compromise on quality parts and the labour is all chink retard, slave shit. Or worse, Vietnam hahah.

Than why are all carriers releasing an update to limit batt charge to 60% for all remaining non recalled units?

It's
like you who give credence to these conspiracies.

The software has control of the charge shutoff point which should be 4.2v or you can get thermal runaway which you will know being an electrical engineer and all that.
Misreport the voltage by introducing an offset in the software, or simply fail to cut off until 5v or whatever the crappy wallcharger is deciding to put out (I had one measure 9v the other day) and you have a device that is destined to become very hot.

Samsung is a Korean company, the phones are manufactured in Korea!