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shyamu
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  • hi sir
    i need assistance i have macbook A2141 won't work without battery in the screen smile no battery charging
    the macbook this model work without battery ... the battery dead or bad
    Ive been looking for the schematic for Samsung Ultrabook Series 5: NP540U3CA: Lotus13-TSP: UMT BA41-02157A: NY BA41-02155A: GCE BA41-02154A for weeks now, I cant find it anywhere. Can you please help me?

    I connected power supply reverse polarity and laptop will only run off of battery and will not charge.
    shyamu
    shyamu
    cq charging ic mosfet gate signal
    shyamu
    shyamu
    mostly fault is come from divider mosfet
    u can also chage it
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