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Apple Computing Products:
macOS - Notebook Hardware
2009 MBP Unibody won't turn on
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<blockquote data-quote="pigoo3" data-source="post: 1357615" data-attributes="member: 56379"><p>It's really really difficult to guess what exactly could have been damaged (if something happened because of improper grounding prior to disassembling)...but more than likely it would be something related to the logic board. </p><p></p><p>There's really nothing on the logic board that is DIY replaceable or repairable...and if this computer was taken to Apple (and it was logic board related)...they would simply say "new logic board...$500+" (which could exceed or be close to...the total value of the computer). Some Apple laptops have a separate "I/O board" or "mag-safe" board (not sure if your MBP has this)...so that would/could be a less costly part to replace. </p><p></p><p>From a DIY standpoint (on a totally non-working computer)...it's almost impossible to determine if the problem is with the logic board, the "Mag-Safe" board, or something else....without having good-working parts to do the replacement/troubleshooting with.</p><p></p><p>- Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 1357615, member: 56379"] It's really really difficult to guess what exactly could have been damaged (if something happened because of improper grounding prior to disassembling)...but more than likely it would be something related to the logic board. There's really nothing on the logic board that is DIY replaceable or repairable...and if this computer was taken to Apple (and it was logic board related)...they would simply say "new logic board...$500+" (which could exceed or be close to...the total value of the computer). Some Apple laptops have a separate "I/O board" or "mag-safe" board (not sure if your MBP has this)...so that would/could be a less costly part to replace. From a DIY standpoint (on a totally non-working computer)...it's almost impossible to determine if the problem is with the logic board, the "Mag-Safe" board, or something else....without having good-working parts to do the replacement/troubleshooting with. - Nick [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
2009 MBP Unibody won't turn on
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