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Apple Computing Products:
macOS - Notebook Hardware
Macbook 13 and 17 Hardware problems.
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<blockquote data-quote="pigoo3" data-source="post: 1614399" data-attributes="member: 56379"><p>As you can imagine...purchasing damaged/non-working computers can be pretty risky. Of course if you get them for a ridiculously low price...sometimes the risk is worth it...since sometimes the problem is a simple fix.</p><p></p><p>So damaged computers many times have unknown history's...in terms of how the computer EXACTLY got damaged.</p><p></p><p></p><p></p><p>If you got some backlight...it would seem like something is loose or not making contact 100% of the time. Which could mean a bad/worn cable (not unheard of). Who knows...if it is the cable...maybe the original display is still good.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p></p><p></p><p>If the computer boots fine from external devices...at least we know that the computer is functioning ok (logic board stuff)...other than the HD. So it still could be a dying HD, loose cable, or bad HD cable. You could try swapping the internal HD with a good one. </p><p></p><p>If it works...then the old HD is bad. If the computer still doesn't work with a known good HD...could still be the cable.</p><p></p><p></p><p></p><p>The liquid damage could have been specific to the electronics on the logic board that controls the keyboard & trackpad. Unfortunately a bad logic board is still a bad logic board...even if only the keyboard & trackpad don't work. </p><p></p><p>And of course you swapped in good parts...so you know that it's not the keyboard or trackpad themselves. Could be bad cables (but probably not two at the same time)<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" />...thus something with the logic board (most likely)</p><p></p><p>- Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 1614399, member: 56379"] As you can imagine...purchasing damaged/non-working computers can be pretty risky. Of course if you get them for a ridiculously low price...sometimes the risk is worth it...since sometimes the problem is a simple fix. So damaged computers many times have unknown history's...in terms of how the computer EXACTLY got damaged. If you got some backlight...it would seem like something is loose or not making contact 100% of the time. Which could mean a bad/worn cable (not unheard of). Who knows...if it is the cable...maybe the original display is still good.:) If the computer boots fine from external devices...at least we know that the computer is functioning ok (logic board stuff)...other than the HD. So it still could be a dying HD, loose cable, or bad HD cable. You could try swapping the internal HD with a good one. If it works...then the old HD is bad. If the computer still doesn't work with a known good HD...could still be the cable. The liquid damage could have been specific to the electronics on the logic board that controls the keyboard & trackpad. Unfortunately a bad logic board is still a bad logic board...even if only the keyboard & trackpad don't work. And of course you swapped in good parts...so you know that it's not the keyboard or trackpad themselves. Could be bad cables (but probably not two at the same time);)...thus something with the logic board (most likely) - Nick [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Macbook 13 and 17 Hardware problems.
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