not turning on possible solutions?

not turning on possible solutions?

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Viewing 4 posts - 1 through 4 (of 4 total)
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  • March 15, 2016 at 10:03 am #29472
    Rene
    Participant
    • Posts: 62

    Did you try an external usb keyboard and hit ctrl+alt+del?

    3.7V is an empty lipo battery. 4.2V is a charged one. That might explain it. You could use a cheap 1s lipo USB charger, as used for the smaller quadcopters. it should deliver about 250-400mah Keep an eye on the voltage though, these cheap chargers have the tendency to be calibrated at 4.25 cut off.

     

    March 15, 2016 at 2:54 pm #29497
    Igor
    Participant
    • Posts: 15

    but the label says 3.7V on the battery.

    March 15, 2016 at 10:45 pm #29556
    Rene
    Participant
    • Posts: 62

    Nominal voltage of the lipo cells is 3.7v, 3.5V is near empty, and 4.2V is fully charged. Best voltage for long term storage is 3.7-3.8V

     

    unless they are using a different chemistry, but it normally is ‘just’ a lithium polymer battery.

    March 19, 2016 at 4:33 pm #30056
    Rogus Mortem
    Participant
    • Posts: 112

    I turned mine by connecting the power cable and pressing the power buton a couple of times. Without the power cable I was not able to turn the tablet on!

    This is a Windows 10 issue and not the Hi12. This happened to Lenovo, Acer, HP and Samsung laptops running Windows10!

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