asus laptop. label s5200n, with model no z300n service manual

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i bought a second hand asus laptop. label s5200n, with model no z300n. website says its a s5n generic.

the usb port has one pin damaged but when wiggle it works so needs replacement and card reader keeps spitting sd card back out/. so i am presuming latch/spring damged.

anyone got service manual so i can take my laptop apart and diy repair. tks