You can tell by how toght the screws are, they have threadlock, or if the screws are loose-if the screw is loose and the Threadlock is busted, it's probably been open
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You can tell from the screws. A computer that has been opened will probably have scratches by the scrfew holes, scratches on the screws or they could be stripped. Missing screws is a hint, too.
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Another way is look for scratches by the holes. You can tell a screwdriver scratch from a table scratch easily in many cases. Also, check the Threadlock. Busted Threadlock can be a symptom but it can also be worn out, too. I would check into this, too.
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Also, look at the screw torque. If it comes out easily then it was opened. If not, it probably wasn't.
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Another way is check for scratches by on the screws themselves, and by the screw hole where it was machined, which happens if one does not take care in opening the machine and rushes it-this one is touchy, because some people will take care in opening it, along with lost or stripped screws, at least in my experience
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Non Apple parts are a dead giveaway.
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How to tell will vary based on care disassembling it, but non-Apple parts are a dead giveaway every single time, because someone did the part themselves and as a result, they did not bother with a Apple OEM part-this trick with non-OEM parts works well with Apple, and it also works with determining if a PC has been opened, too
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However, these may or may not show based on the experience of the person working on the laptops. Some people are better then others at it. Idiots lose screws and strip them(however, experts can too). Experts know how to avoid all of this, so it's far harder to tell if they know what they're doing.
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Rush jobs are obvious, too.
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As a smaller tech and not a company like Apple, I don't toss the upgrades because I do not have to do so; I will leave them be and as long as they aren't affecting the repair, I won't worry about it, so I could care less about someone upgrading their HD in their laptop, and will leave it be
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As a smaller tech and not in a position like Apple I don't toss third party parts. If they're bad I usually give them back. If they work they stay. I don't see what the big deal of this is. Liability seems like an excuse to me. If someone has a non OEM hard drive I do take notes, though. That's the extent of it.
You can tell by how toght the screws are, they have threadlock
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You can tell by how toght the screws are, they have threadlock, or if the screws are loose-if the screw is loose and the Threadlock is busted, it's probably been open
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If they feel slightly loose, chances are it has been opened
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Another way is check for scratches by on the screws themselves, and by the screw hole where it was machined, which happens if one does not take care in opening the machine and rushes it-this one is touchy, because some people will take care in opening it, along with lost or stripped screws, at least in my experience
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Another way sis check for scratches by on the screws themselves, and by the screw hole where it was machined, if the machine was not opened with too much care, you can find these kinds of things
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Lost screws are another hint it may have been opened, but non fitting replacement screws are a dead giveaway, or misplaced screws
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That's how I can tell if a computer may have been opened up prior
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How to tell will vary based on care disassembling it, you know mine is because I DO NOT have a stock HDD, it failed, now has a non OEM WD 320GB replacement, which i had from a parts PC laptop
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How to tell will vary based on care disassembling it, but non-Apple parts are a dead giveaway every single time, because someone did the part themselves and as a result, they did not bother with a Apple OEM part-this trick with non-OEM parts works well with Apple, and it also works with determining if a PC has been opened, too
As a smaller tech and not a company like Apple, I don't toss the upgrades because I do not have to do so; I will leave them be and as long as they aren't affecting the repair, I won't worry about it, so I could care less about someone upgrading their HD in their laptop, and will leave it be
You can tell by how toght the screws are, they have threadlock
If they feel slightly loose, chances are it has been opened
Another way sis check for scratches by on the screws themselves, and by the screw hole where it was machined, if the machine was not opened with too much care, you can find these kinds of things
Lost screws are another hint it may have been opened, but non fitting replacement screws are a dead giveaway, or misplaced screws
That's how I can tell if a computer may have been opened up prior
How to tell will vary based on care disassembling it, you know mine is because I DO NOT have a stock HDD, it failed, now has a non OEM WD 320GB replacement, which i had from a parts PC laptop
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As a smaller tech and not a company like Apple, I don't toss the upgrades because I do not have to do so; I will leave them be and as long as they aren't affecting the repair, I won't worry about it, so I could care less about someone upgrading their HD in their laptop, and will leave it be
You can tell by how toght the screws are, they have threadlock
If they feel slightly loose, chances are it has been opened
Another way sis check for scratches by on the screws themselves, and by the screw hole where it was machined, if the machine was not opened with too much care, you can find these kinds of things
Lost screws are another hint it may have been opened, but non fitting replacement screws are a dead giveaway, or misplaced screws
That's how I can tell if a computer may have been opened up prior
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How to tell will vary based on care disassembling it, you know mine is because I DO NOT have a stock HDD, it failed, now has a non OEM WD 320GB replacement, which i had from a parts PC laptop
You can tell by how toght the screws are, they have threadlock
If they feel slightly loose, chances are it has been opened
Another way sis check for scratches by on the screws themselves, and by the screw hole where it was machined, if the machine was not opened with too much care, you can find these kinds of things
Lost screws are another hint it may have been opened, but non fitting replacement screws are a dead giveaway, or misplaced screws
That's how I can tell if a computer may have been opened up prior