10-14-2016 03:54 AM
53 123
tools
  1. ThrottleJohnny's Avatar
    Then it would be an issue with Samsung and their implementation of USB-C.

    I thought the OP was asking about it just being USB-C in general and that is why I wrote that answer. .
    Ah, gotcha
    10-11-2016 12:53 PM
  2. Ry's Avatar
    Battery voltage?
    10-11-2016 01:09 PM
  3. Longhorngary's Avatar
    Then it would be an issue with Samsung and their implementation of USB-C.

    I thought the OP was asking about it just being USB-C in general and that is why I wrote that answer. .
    This was exactly my point, Samsung in moving towards USB-C had to implement a new charging system. In doing so, they obviously had errors along the way either in design, build and new battery charging software.
    10-11-2016 01:16 PM
  4. ThrottleJohnny's Avatar
    This was exactly my point, Samsung in moving towards USB-C had to implement a new charging system. In doing so, they obviously had errors along the way either in design, build and new battery charging software.
    It's an interesting theory if nothing else. That would also explain why simply going with another battery didn't fix the problem. The problem wasn't solely the battery.

    The oversized battery doesn't sit well with me. I'm pretty sure batteries that don't fit to specifications will not work.
    10-11-2016 01:21 PM
  5. recDNA's Avatar
    I don't know but I hate usb c. The best features like hdmi capabilities are turned off so I have to buy all new accessories just so I never put plug in upside down? No thanks
    10-11-2016 01:31 PM
  6. Mike Dee's Avatar
    How many global tales of Nexus 6p or Nexus 5x phones exploding or catching fire have there been? Nil. Both came out in 4th quarter 2015, and both were the first mainstream phones that had USB-C.

    Other flagships that have had no issue with their USB-C: HTC 10, LG 5, OnePlus, and a variety of other Chinese Android sets...
    Though I don't buy into it, could be their implementation of it. If it had been the cause, I think they would have figured it out.
    10-11-2016 02:09 PM
  7. weave majjik's Avatar
    Waterproof=limited airflow. Edge screen, s-pen... Even less room for ventilation. A ton of features and technology packed into the thinnest possible case with quick charging. All of this seems far more likely that a charging cable type.
    10-11-2016 02:16 PM
  8. justin1578's Avatar
    Uhh, no.
    10-11-2016 02:24 PM
  9. Mike Dee's Avatar
    Waterproof=limited airflow. Edge screen, s-pen... Even less room for ventilation. A ton of features and technology packed into the thinnest possible case with quick charging. All of this seems far more likely that a charging cable type.
    I thought about some of those issues like waterproofing but there haven't been issues with their other products. Could be a combination of things
    10-11-2016 02:31 PM
  10. Ronald Andrews's Avatar
    I was thinking the same thing just seems a likely candidate it's a new feature at the top of the phone could be shorting out the battery somehow.
    recDNA likes this.
    10-11-2016 02:48 PM
  11. D13H4RD2L1V3's Avatar
    Here's something interesting;

    "However, a little digging through a ChipWorks teardown reveals the use of a Dialog DA9155 charging chip, alongside the familiar MAXIM power IC. Importantly, this DA9155 does not appear to be found inside the Galaxy S7 or S7 edge. This chip is a slave charger that extends the current capabilities of a master power IC for increased charging currents up to an additional 2500mA. It’s controlled by the application processor (AP) and, interestingly, kicks in during the high-power constant current charging stage.

    A read through the datasheet reveals that this chip features an AP programmable output current, switching frequency, and temperature monitor. As a slave device, programming and controlling the current and cooling is all left to the AP, which Samsung would have to program itself.


    Careful consideration has to be made not to exceed the battery’s charging current, optimize the switching frequency to the inductor charging circuitry for efficient power transfer, and monitoring the temperature of the battery. Furthermore, the DA9155M doesn’t force a chip reset until TJUNC_CRIT is triggered at 140°C, so it’s up to the AP and Samsung’s programmers to monitor lower temperatures and adjust power delivery."

    Obviously, we don't know if it's the cause or a contributing factor, but it's something else to know.

    Source: What caused the great Galaxy Note 7 defect and recall?
    msndrstood and Pirate Arr like this.
    10-12-2016 09:24 AM
  12. Mike Dee's Avatar
    Here's something interesting;

    "However, a little digging through a ChipWorks teardown reveals the use of a Dialog DA9155 charging chip, alongside the familiar MAXIM power IC. Importantly, this DA9155 does not appear to be found inside the Galaxy S7 or S7 edge. This chip is a slave charger that extends the current capabilities of a master power IC for increased charging currents up to an additional 2500mA. It’s controlled by the application processor (AP) and, interestingly, kicks in during the high-power constant current charging stage.

    A read through the datasheet reveals that this chip features an AP programmable output current, switching frequency, and temperature monitor. As a slave device, programming and controlling the current and cooling is all left to the AP, which Samsung would have to program itself.


    Careful consideration has to be made not to exceed the battery’s charging current, optimize the switching frequency to the inductor charging circuitry for efficient power transfer, and monitoring the temperature of the battery. Furthermore, the DA9155M doesn’t force a chip reset until TJUNC_CRIT is triggered at 140°C, so it’s up to the AP and Samsung’s programmers to monitor lower temperatures and adjust power delivery."

    Obviously, we don't know if it's the cause or a contributing factor, but it's something else to know.

    Source: What caused the great Galaxy Note 7 defect and recall?
    How does this explain units that caught fire on standby or off..... Battery fatigue?
    10-12-2016 09:31 AM
  13. D13H4RD2L1V3's Avatar
    How does this explain units that caught fire on standby or off..... Battery fatigue?
    Possibly.
    10-12-2016 09:44 AM
  14. Ten Four's Avatar
    My guess is that Samsung knows much more than it is revealing to the public, and apparently it is something too expensive to fix quickly and easily. I have wondered if USB C is a part of the problem simply because it allows more power and fast charging, resulting in the generation of a fair bit of heat on my Nexus 5x. Samsung pushed the limits of how fast the battery could be charged, and possibly USB C was more of an enabler than a cause--it allowed for faster charging than the battery can take.
    10-12-2016 10:30 AM
  15. vferrari's Avatar
    Given how many phones already exist with USB-C, I'd say that if USB-C were the cause of problems on the N7..Samsung needs to fire whoever builds the charger portion of the phone.
    They should do that regardless.
    Jona005 likes this.
    10-12-2016 08:42 PM
  16. cardboard60's Avatar
    I been using a Quick charging pad.
    How does that work into the USB-C charging.

    Its the lithium battery or the circuitry.
    Hope they figure it out soon.
    10-12-2016 09:45 PM
  17. vferrari's Avatar
    I been using a Quick charging pad.
    How does that work into the USB-C charging.

    Its the lithium battery or the circuitry.
    Hope they figure it out soon.
    If you mean "figure it out" from the perspective that they do not repeat the same mistake on future devices, I certainly agree. If you mean "figure it out soon" from the perspective that you will be able to continue to use your Note 7, don't hold your breath. They are already releasing mandatory SW updates that cripple phone functionality such as [not] being able to use it with the Gear VR headset. It is only a matter of time that the phone will be crippled to the point that the user has no choice but to turn it back in.
    10-12-2016 10:13 PM
  18. cardboard60's Avatar
    If you mean "figure it out" from the perspective that they do not repeat the same mistake on future devices, I certainly agree. If you mean "figure it out soon" from the perspective that you will be able to continue to use your Note 7, don't hold your breath. They are already releasing mandatory SW updates that cripple phone functionality such as [not] being able to use it with the Gear VR headset. It is only a matter of time that the phone will be crippled to the point that the user has no choice but to turn it back in.
    I know they are not going to release a new note.
    I know they have a big problem.
    With the money it has cost them.
    They will not make the mistake again.

    I'm already upset that I don't have my note 7.

    But I heard they are gonna let a lot of their top people go because of this problem and the money it cost them.
    They will probably hire new people.
    They need a new phone to replace the Note 7 before christmas.
    10-12-2016 10:18 PM
  19. hallux's Avatar
    They need a new phone to replace the Note 7 before christmas.
    That simply won't happen unless they have something just about ready in the pipeline already. Even if there WAS something in the pipeline that was close the last thing Samsung needs is to rush something out the door and risk the same problem happening again.
    Longhorngary likes this.
    10-13-2016 04:52 AM
  20. Mike Dee's Avatar
    My guess is that Samsung knows much more than it is revealing to the public, and apparently it is something too expensive to fix quickly and easily. I have wondered if USB C is a part of the problem simply because it allows more power and fast charging, resulting in the generation of a fair bit of heat on my Nexus 5x. Samsung pushed the limits of how fast the battery could be charged, and possibly USB C was more of an enabler than a cause--it allowed for faster charging than the battery can take.
    I have used three different USB C phones from two different manufacturers and never experienced what I would call excessive heat unless the phone was being taxed by apps running and or receiving several updates. Regardless, of those conditions and how deficiently a phone dissipates heat, we have the technology to prevent a phone from overheating and igniting do thermal overload. So any battery failure except for those caused by manufacturing defects that get past QC are simply inexcusable. I applaud Samsung for their efforts after the fact, however I don't think they should have released a second batch unless they were 100 percent positive they found the root cause. The only pass I will give them if they were two or more problems causing the first condition or a different problem causing the second condition.
    10-13-2016 04:56 AM
  21. BlackZeppelin's Avatar
    What complicates this matter is that it's not a straight charging issue. Many units caught fire whilst NOT charging.

    All the latest headlines say that Samsung have had hundreds of engineers working on this and couldn't get all the test Note 7 units to combust. This is easy to believe otherwise Samsung wouldn't have taken the drastic step they did.

    But they better eventually find out before they release the S8.

    I have a theory that it's not an actual component fault but an inherent design fault. One that only occurs in a specific set of circumstances, hence why hundreds of Samsung engineers could not make a Note 7 combust when they wanted to.

    I believe it's some really unusual combination of the battery being at a certain temperature and some process running in the background/foreground that cause an aberrant spike in voltage/current. Some inherent design flaw that only shows up only with a specific set of usage circumstances hence very difficult to track down, unlike just a faulty component.
    10-13-2016 05:37 AM
  22. cynth.hgn's Avatar
    My husband's Z Force is USB-C as well. No issues for him.
    Dam I wish we could get that phone in Canada. I'm completely stumped and don't know what to get lol
    skatergirl likes this.
    10-13-2016 08:14 AM
  23. cynth.hgn's Avatar
    How can it be explained that many countries haven't had even one issue? I heard of one here in Canada with the first batch, but I believe that was never confirmed. Nobody here even talks about it
    10-13-2016 08:21 AM
  24. donm527's Avatar
    Or fault in design.... they try to give a lot of options and must be complex to manage... using usb-c for first time, regular charging, + quick charge 2.0 (why not 3.0?), + both types of wireless charge standards? would be nice to find out someday.

    Possibly.
    10-13-2016 08:41 AM
  25. cardboard60's Avatar
    Dam I wish we could get that phone in Canada. I'm completely stumped and don't know what to get lol
    And only available threw Verizon.
    10-13-2016 08:43 AM
53 123

Similar Threads

  1. HuaweiY5363A1 continually "runs" out of internal storage.
    By AC Question in forum Ask a Question
    Replies: 2
    Last Post: 10-11-2016, 01:04 PM
  2. Why can't I see what I want to photograph when outdoors?
    By AC Question in forum Ask a Question
    Replies: 2
    Last Post: 10-11-2016, 08:51 AM
  3. I cant find the enhanced messages in my Samsung S7 edge
    By AC Question in forum Ask a Question
    Replies: 1
    Last Post: 10-11-2016, 08:27 AM
  4. Android wont connect to internet.
    By AC Question in forum Ask a Question
    Replies: 0
    Last Post: 10-11-2016, 06:41 AM
LINK TO POST COPIED TO CLIPBOARD