Surface Pro 7 wont power on (1866(

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  • Danny Butler
    New Member
    • Apr 2025
    • 4
    • UK

    #1

    Surface Pro 7 wont power on (1866(

    Quick Backstory, the Surface Pro was in the back of my car, and got some liquid inside it (didnt know at the time and charged it, and tried to power it on)
    The area it affected was the botttom side of the board near and including the usb ports...see photo)
    it was only damp in that area for around 3/4 days, i cleaned the area with isopropyl alcohol and a gentle brushing.

    obviously it didn't boot up (as I'm here) i've downloaded the board diagrams, (and used referenced from another post, Surface Pro 7 1866 won't turn on... - Badcaps​)
    when pressing the power button 5VSB_VIN is dropping for 1 to 2 seconds by approx. 2v, but that's as far as i get, im guessing is detecting a shor somewhere and failing to go thought with the rest of the startup process.
    any help appreciated.
  • Danny Butler
    New Member
    • Apr 2025
    • 4
    • UK

    #2
    could the water/damp have damaged the Silego Controller? i think it's used in the start up process?

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