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Battery mode not fuctioning

Greeting to all, I just bought MID tablet (for sure it is made in China) a week ago and it is working fine. I can tell you guys this device work perfectly and really cheap of course (for sure the quality and services is slightly different from branded item). A few day later, something wrong happened with my tablet which is the device only can turn ON when it is plugged in and I cannot turn it ON while on battery. The battery bar indicator shows 100% charged but when I plug it off, it totally dead. Is there any damaged in electronic part because it show that the battery health is good. Did anyone have any idea how to solve this? What kind of part that I should replace? Appreciate if you can share with me.

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You might need a new battery
if it only turns on when plugged in to a power source
you could check the lead connections but this could be a long process
with a mid tablet
you might need a manual
hope this helps

Posted on Feb 25, 2012

  • 2 more comments 
  • ggkun
    ggkun Feb 25, 2012

    Thanks for your help. Yes, I do have the manual but it just a guide to know the function and how to get use of it. Probably I do need the MID's circuit diagram.

    As I am not the expert, but have a bit of knowledge in diagram/flow, maybe by asking a logic question can direct and help me to solve this matter.

    1. What kind of electronic part that can switch from direct AC power to battery mode?
    2. Is there any possibility if the high voltage from power source or the polarity switching can effect that electronic part and make it turns only for plugged in?
    3. What is the name of that electronic part and how much it cost?

  • Brian Sullivan
    Brian Sullivan Feb 25, 2012

    im not sure if tablets have any switches to direct different power sources once its plugged in power supply it automatically should run and overide the battery power and charging the battery at the same time unless it has a point for charging
    what sort of battery is it and where was it made (china) it could be the problem ?

  • ggkun
    ggkun Feb 28, 2012

    Hi Brian,

    I think the capacitor might be damaged because of overheat or eventually short out. I totally agree with you, it can be happen because of where it was made. If it occurs, will it cause as subject above?

  • Brian Sullivan
    Brian Sullivan Feb 28, 2012

    any capacitator damage can cause lots of issues to any motherboard and attached device making it inoperable
    depending on how or which capacitator is damaged it might vary



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