Cube Mix Plus dead, no signs of life at all.. Need assistance and advices!

Cube Mix Plus dead, no signs of life at all.. Need assistance and advices!

TechTablets Forums Cube Forums Cube Mix Plus Cube Mix Plus dead, no signs of life at all.. Need assistance and advices!

This topic contains 40 replies, has 7 voices, and was last updated by  SB9224 10 months, 4 weeks ago.

Viewing 15 posts - 1 through 15 (of 41 total)
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  • #75015

    Ivan
    Participant
    • Posts: 12

    Good evening everybody!

    First time writing here, very interesting web-site and forum, have been reading TECHTablets for a while.

    Unfortunately the reason I registered here and decided to create this topic is rather sad and tragic:

    I have tablet Cube Mix Plus i18-L since March 2017, but I started to use it actively only  last 2 months (before I had laptop and tablet provided at my job). Most of time (95%) I use it at home or at work on power supply (USB type C charger or AC charger which I received together with tablet), once per 1-2 weeks I use Cube Mix Plus on battery. Never opened this tablet and haven’t done any thermal modding.

    Yesterday in the evening I was playing Asphalt (approx. during last 30-40 minutes),  external HDD WD Elements 1Tb was connected via USB 3.0 (micro-USB port in the tablet) and torrent was downloading there, smartphone Xiaomi Mi Max 2 was charging in keyboard USB port (via cable USB A – USB type C), external cooler was connected to another USB port on keyboard. Tablet was quite busy, a lot of opened tabs in Chrome and Internet Explorer, power management regime was “Maximum performance”, so back cover was quite hot (I think AIDA showed processor temperature near 75-85 °C). Battery was fully charged and tablet worked on AC line from USB type C charger Udoli 60W Universal USB type-C (LS-PD60, which is decent charger, checked and worked last 1,5 month without any problems).

    Just at this described moment when I was playing Asphalt, suddenly Cube Mix Plus switched off and that’s all, no reaction on power button (3-5-10-20 seconds push), nor on battery, neither on power supply (tried USB type C charger and stock AC charger), charging light sensor never light up.

    This is my main Windows device at this moment and I need urgent assistance. Sure I will go to the shop where I bought it (fortunately I haven’t bought it on Chinese internet shops, but that’s why it was more expensive – 550$ near 1 year ago), some warranty even was provided and it’s good I haven’t opened my Cube Mix  Plus yet and haven’t done any modding or customization. But I don’t know how long it will take and if they will help.

    Can you help and advise what it can be? Have anybody experienced such situation? What should I do?

    #75016

    Algorithm
    Participant
    • Posts: 41

    You mentioned that battery was fully charged and that it was still plugged into the charger.     Usually this should not be an issue but perhaps somewhat the battery overcharged and shut off as protection (and battery circuitry is not allowing it to be turned on?)  Some of the cheaper devices have major issues with battery charging  (inaccurate reading, stuck at 50%, undercharging, overcharging,  battery circuitry fusing if using other chargers etc)

    Temperatures also seem to be on the safe side (85c max you mentioned).   You can try holding down the power button for 20 seconds or/and reset hole.   Another alternative is that you open the device and disconnect the battery and reconnect again (but this may void your warranty, so better to get it replaced I guess)

    #75017

    Anonymous
    • Posts: 46

    I´ve just bought the Cube mix plus and I am worried about this temperature issue. It is a big design mistake. but 75-85 C it doesn´t seem to be a great temp. I mean, 85 C is very hot, but not enogh to burn out the processor (Or maybe it is ?). Curiosly I had a similar problem with a Cube i7 Stylus. I started to use it with a usb port hub and tried to use an external HDD WD 2 Tb (Tablet never recognized it). Also I was using an usb keyboard and a pendrive. The difference is one day I tried to charge the tablet vía usb connecting the tablet with the port hub, wich was plugged with the charger. Then I had the same problem you describe. But Days ago someone told me it is not a problem to charge the tablet vía usb, and now I read your post.  So, could it be some kind of shortcut risks to use a USB port hub with this Tablets?

    #75029

    virgo
    Participant
    • Posts: 176

    Battery was fully charged and tablet worked on AC line from USB type C charger Udoli 60W Universal USB type-C (LS-PD60, which is decent charger, checked and worked last 1,5 month without any problems)

    A 60W charger is a hulk waterfall to the battery. It surely degrade the power component over time faster than usual. May be @Algorithm is right, something wrong with the battery calibration, try remove and replug the battery.


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    #75030

    Ivan
    Participant
    • Posts: 12

    You mentioned that battery was fully charged and that it was still plugged into the charger. Usually this should not be an issue but perhaps somewhat the battery overcharged and shut off as protection (and battery circuitry is not allowing it to be turned on?) Some of the cheaper devices have major issues with battery charging (inaccurate reading, stuck at 50%, undercharging, overcharging, battery circuitry fusing if using other chargers etc)

    @Algorithm, thank you for your answer, may be that’s the case. I got the same idea at other forums where I asked: as power and charging sensor doesn’t work and never light up after this emergency shutdown, it should be some problem with power supply lines or battery charging circuitry.

    Regarding problems with battery charging, well, I didn’t observe any and I read a lot of positive feedbacks about charging Cube Mix Plus through USB type C.

    Temperatures also seem to be on the safe side (85c max you mentioned). You can try holding down the power button for 20 seconds or/and reset hole. Another alternative is that you open the device and disconnect the battery and reconnect again (but this may void your warranty, so better to get it replaced I guess)

    I don’t know precise temperature at the moment it happened, so can’t exclude overheating, taking in account also that thermal modding wasn’t done, but to be honest I think this game Asphalt was the highest workload, mostly I used it for browsing and videos.

    Itried to press and hold power button and/or reset button and nothing changed. I think it is better wait for service on Monday as this tablet fortunately is still covered with 1 year warranty, so I won’t open it to check and reconnect battery.

    I am just worried if it could be motherboard or CPU or SSD issue and also if warranty will cover this case.

    #75044

    Anonymous
    • Posts: 46

    I hope you´ll have better luck that me, Ivan. Mine has the same symptoms and Two services told me the motherboard died. By the way, I would like to know and confirm I didn´t do anything wrong connecting the charger (12v, original) through a usb hub connected to the Cube i7 Stylus usb port.  Tablet died just the instant I made the connection.

    Like Ivan, I´ll use intensely the Cube Mix plus.  I´ll use it with Photoshop, Drawing programs and even After Effects. Can the tablet burn out? It is hardly necessary to lose the warranty and to do the thermal modding?

    #75046

    virgo
    Participant
    • Posts: 176

    I has once charge the Cube through USB-C, but the charger was a MacBook Air, 25W and it charged quite fast. So I stopped after 10 minutes


    If you found my answer helpful, you may donate to me at my signature above!

    #75053

    Anonymous
    • Posts: 46

    So, maybe the usb port hub may generate the short circuit? I used it because the original charger has the standard plug (Not usb).  I ask because the posibility that to use this usb port hub and multiple connections may to break this tablets. Besides I see two coincidences here: usb port hub and charger conected.

    #75067

    Algorithm
    Participant
    • Posts: 41

    That’s unfortunately the main issue with these cheap tablets (less quality control). You get the specs, but reliability is another thing.

    Charging the device and using it causes additional stress and heat and constantly doing this may cause failure after a while perhaps.    Without the thermal mod, its actually quite easy to get it at temperatures >90c and prolonged high temperatures along with the battery charging can be an issue.

    I normally charge my cube mix plus (via usb C charger) when the device is turned off  (and I am careful not to get it past 90% battery) as I think there is also some calibration bug when overcharging (for some users) where they end up with a battery that cannot charge more than a specific amount.    The supplied pin based charger I avoid as that seemed to cause some intermittent issues with the device (trackpad not working etc)

    #75070

    Ivan
    Participant
    • Posts: 12

    Hey Daved, Algorithm and Virgo,

    I think it’s too early to decide that the reason was USB type C charging. As I said I was using this charger last 2 months and no issues till this incident. 95% I worked from power supply and not battery, because lately I was always  near  AC line and didn’t want to use charge/discharge cycles of battery in vain. Once per 1-2 weeks I tried to work from battery to keep it healthy, usually after that I was working and charging battery simultaneously. Before I worked the same way, but with Chinese AC charger, which I received in the box with Cube Mix Plus, no big difference to be honest between these 2 chargers, I can’t say charging was quicker on USB type C (may be 15-30 minutes full charge, not more, but I didn’t measure it, my impression timing is the same, at least if you are charging and working simultaneously). May be such intensive use of AC line results in degradation and fusing or short circuit or other failures of power supply circuitry inside tablet.

    The reason I bought and started to use this USB type C (Power Delivery compatible) charger is all the positive reviews and user experience feedbacks about this charger on 4pda.ru (good topic with a lot of information about Cube Mix Plus and other mobile devices, in Russian, but I think I saw some English translated mirror of the forum or at least this topic) and information that original Chinese AC charger is crappy and bad quality (that was my impression as well).

    Below I added photos of these 2 chargers.

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    #75075

    Ivan
    Participant
    • Posts: 12

    Also I don’t want to mess this topic with other questions and issues I have in mind about Cube Mix Plus, but as I have a lot of questions about battery life/health in this tablet, I will shortly recollect some of them:

    • considering overheating problems, and as I read Li-Ion and Li-Polymer battery working temperature range is 0-30°C, so in case you will make thermal modding and heat will go on back cover and dissipate not only in the left part (notably at the top, where CPU is located), but over all the surface of back cover. And battery is degrading much more, if it’s working temperature is higher than 30°C. It also depends on different types of thermal modding, I think. But that’s the reason of my uncertainty how thermal modding will influence battery health.
    • Another issue is working from AC line, if it’s good for battery to keep it 100% charged inside tablet and work from AC line all the time. I haven’t find any information about battery health management in-built features in Cube Mix Plus and if such even exist, like the possibility to limit battery charge level to 60-80% and work only from AC line, which is better for Li-Polymer and I didn’t find any software solution for it. This features should be in-built and even need some controllers inside battery itself, if I understood correctly from what I read about battery management. You can find this feature in Lenovo, Dell, Samsung devices, for example.
    • Another question: if it’s possible to work on Cube Mix Plus with removed battery, just hypothetically to imagine such situation.

    So all these kind of questions and I have more of it, because I’ve read a lot of information in the internet with different opinions and I am completely confused now how should I manage and behave with battery in Cube Mix Plus to keep it safe and healthy longer time. Generally, most thoughts I’ve read that it is safe to keep modern devices with in-built battery all the time working from AC line as controllers and software is smart enough to manage it.

    But again, let’s not mess this topic with other questions, as this dead tablet issue is much more urgent problem for me. I will create separate topic about battery management or may be it was discussed somewhere here already and I will add there my questions then.

    #75081

    Algorithm
    Participant
    • Posts: 41

    Some good points there.   Indeed, the thermal mod can spread out heat more (Heat is still mainly localised but spreads out slightly more to the area where the battery is.    I would assume that temperatures would not really be any less than 35c with or without thermal mod inside this tablet when on load.

    Based on other users comments and issues, I would probably assume that there is some issues with the battery circuitry which may have an impact on the longevity of the hardware or battery itself.   One issue is that the reported battery capacity actually seems to increase over time (if overcharging) and this later only results in charging to 25 or 50% of its capacity after some time as one unfortunate person also mentioned in this forum  (Could also be some other damage)

    With this particular device, my opinion is that its safer to just charge the device when fully off,  (being careful not to overcharge it)  then use it after.  Unlike other premium devices that usually should not have this issue.

     

    #75087

    Ivan
    Participant
    • Posts: 12

    Well, thanks for your thoughts, that’s quite unfortunate and inconvenient if you can’t use Cube Mix Plus working on AC line for longer time, because if it’s no need to use battery and you use it then constant battery use and charge/discharge cycles will result in its degradation.

    I can say from my experience that after I worked all days long (during last 3-4 months) on AC with fully charged battery and only once per 1-2 weeks deliberately using battery, still when I checked my battery with diagnostic tools (AIDA, Battery Care) it showed full capacity and 0% wear level. So that’s why I concluded that at least on my Cube Mix Plus battery and power circuitry works correctly (of course, if you can trust results these tools show).

    #75090

    Ivan
    Participant
    • Posts: 12

    A 60W charger is a hulk waterfall to the battery. It surely degrade the power component over time faster than usual

    @Virgo, regarding 60W charger, I am very far from being specialist in electricity and I was afraid of 60W too, but when I asked experts and what I found that in any case device will consume not more than it is designed to consume, because of controllers. Another problem could be heat, but I can’t say that I feel more heat on back cover when tablet was charging through USB type C to compare it with AC charger (I saw feedbacks on  forums, that it is vice-versa: more heat on AC charger). Also in my previous posts I attached photo of this USB type C charger and its manual and it’s written there Output: USB-C port DC 5V/9V/15V/20V 3A (MAX) and so there are different modes and I think the mode is chosen automatically, depending on connected device. Also there are compatible devices listed there (tablets and smartphones), which have the same power specs (or even lower) as Cube Mix Plus.

    But again, I am far from electricity expert, so main factor for me were positive reviews and user experience feedbacks about using USB type C chargers (and specifically about this charger Udoli 60W which I bought) with Cube Mix Plus.

    #75091

    Algorithm
    Participant
    • Posts: 41

    Indeed, the device and charger should communicate and it should not give any more current than its designed to take.   (Exception being GPD XD device which blows the battery circuitry if using a fast charger – protocol just says “hey, give me all you got” 🙂

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