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- Apple Serial Number Lookup.
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I cannot log in to iMessages and posts an the 'net lead me to believe the non-present serial number may be at fault. The only deleterious effect seems to be the inability to log in to Messages with my AppleID. This machine is able to log in to Messsages. Apple does not guarantee a serial number will be set.
Technical Note warns developers not to rely on a serial number being available to uniquely identify a Mac. The technical note suggests the serial number can vanish if hardware components are changed. Other reasons appear to be possible but Apple does not enumerate every cause:. Repairing a system by swapping hardware components is one reason this can happen.
Apple does not document the specific details of how a machine can lose its serial number. Once the serial number has been lost there is no means to restore it to the machine. Both of these cases illustrate why asset tracking software should always provide a way for a serial number to be entered manually.
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I am not aware of any further documentation about restoring the serial number. If it is possible, this capability is likely to only be available to Apple engineers or support staff. TUAW has an article on this problem, the author had his logic board replaced and apple did not reset the serial number.
In essence he did software trouble shooting, reinstalled the os As per a comment Apple or an authorize service providers have software that is able to reapply serial numbers and he was able to connect with messages.
The link to the story is below. Didn't realise this until it refused to log in to iCloud, AppStore etc. I can say that even though Apple won't admit or explain why this happens, I know every change made to this machine. They changed the logic board under warranty and it's been fine since.
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I suspect this is the cause. However I have done this to several different macs without issues, so I suspect that the logic board replacement was the cause. What was worse?
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We had the rubber base replaced under warranty Apple admitted there were manufacturing issues where it would start to peel off but of course the replacement base was without a serial number printed on it! By a stroke of luck and several hours of searching I found the support case online for the machine and luckily the serial number was registered there!
I'm going to rewrite the serial number to the firmware tonight and cross my fingers that it works! The logic board should carry the serial number, so the logical and most likely conclusion would be software corruption or perhaps a failure of the logic board.
Towards the end of this listing should be a serial number field. Based on this result, you might reinstall the OS if the serial shows under this command - and even if this serial were missing, I might still try a reinstallation before taking it in for service. If you are close to a free service like a Genius Bar, you might stop in with the Mini no need for cables and ask if they can have a brief look.
Since the MacBook Air , Pro and "regular" MacBook names don't change when they're updated, Apple uses the year -- and time of year -- a MacBook is released as the model. It looks something like "MacBook Air inch, mid Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion. Don't show this again. Mac Pro Mid Mac Pro Server Mid Mac Pro Early Identify your Mac Pro Learn how to find the serial number and other information that can help you identify your Mac Pro.
Locate your serial number, model identifier, and part number You can find the serial number and other identifiers for your Mac Pro in macOS, on the computer's surface, and on its packaging. On the surface of your Mac Pro Shut down your Mac Pro and unplug any connected cables so you can safely move it.
How to Find Your Mac’s Serial Number (Even if You Don’t Have Your Mac)
On the original product packaging or receipt If you still have the original packaging for your Mac Pro, you can find the serial number on a barcode label on the box. Mac Pro models Click on each model for technical specifications. Mac Pro Late Model Identifier: MacPro6,1 Part Numbers: Mac Pro Mid Model Identifier: