Ask your friend for a history of the machine, especially about any liquid damage to the keyboard.
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Next open it up and examine the logic board closely for any corrosion or indiction of liquid damage. See if any of the LSI indicators have turned red.
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Next open it up and examine the logic board closely for any corrosion or indication of liquid damage. See if any of the LSI indicators have turned red.
Ask your friend for a history of the machine, especially about any liquid damage to the keyboard.
Next open it up and examine the logic board closely for any corrosion or indiction of liquid damage. See if any of the LSI indicators have turned red.