X202E

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  • coicoicoi
    Member
    • Nov 2022
    • 12
    • philippines
    #1

    X202E

    hello!
    i'm new here and i don't know where to go. i just want to ask somebody about a laptop problem., i have this asus (X202E) laptop that i fix for a button problem only. the laptop works for a month and suddenly it turns off (no charging LED light & no power LED light). the board has: 19v on power rail, 3.3v on power button, 1.2v from one of the coil

    I tried this:

    1. replacing the BQ735 chip(responsible for regulating power to the battery). The laptop turns on (for a day) and then turns off (no charging LED light & no power LED light)

    2. replace the high side mosfet that supply power on battery. the laptop turns on when i test, but after assembling the laptop, it did not turn on (no charging LED light & no power LED light)

    3. replace the low side mosfet that supply power on cpu. the laptop turns on when i test, but after assembling the laptop, it did not turn on (no charging LED light & no power LED light)

    i don't have schematics & i don't know what else to do.,
    i want to flash bios but i don't have the bios file..

    any reply to this is much appreciated...
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