Your Mac’s serial number is a unique identifier that distinguishes your Mac from all others. You have to provide your Mac’s serial number when requesting warranty service. You may also want to look up your Mac’s serial number if you’re reporting it stolen. Just to be clear: 1) I haven't changed any hardware on this machine. I don't mean recently, I mean ever. 2) This has happened before and used to be quite a common problem. I just forgot how I resolved it and now all i can find is how to solve this happening due to hardware changes. In 'About this Mac' on a MacbookAir 4,2 (Mid-2011) running OSX Sierra 10.12.4 my serial number has gone bye-bye. It is listed as 'Unavailable'. Under System Report it is 'Not Available'. If I have to use a Serialiser to fix this (something I don't recall doing in the past, I'm fairly sure I did it from Terminal or from booting to CLi mode) then so be it, but I'd love some information on which Serialiser and from whence to get it that's newer than the days of Mountain Lion. For those unfamiliar: It's something that goes weird after some OS upgrades/updates. Apparently nobody knows why. It's just a pain, and while iCloud and even software updates continue to go along blissfully unaware, they start to behave in peculiar fashions. You might have iCloud Keychain spontaneously turn off, try 50 times to enable it, get prompted 75 times to enter your iCloud login information, give up, and then next time you use the computer Keychain is turned on again (that last step is filed under 'If you're marginally lucky') So, yeah, that's where I'm at. Google is being well Google. DuckDuckGo at least gave me results that matched my problem but no one had given them an actual answer to their problem (one reply was literally 'I haven't swapped hardware' 'So, sounds like you had your logic board replaced!' ) and I can't find any of the older discussions I used the last time this happened. Both to the machine in question and to a 2004 Powerbook. Yes, of course. I think Dave Braine was suggesting that if Coconut Battery shows the serial number, then your issue is one within software (and not a case of the serial number disappearing from firmware) But, to make this a question: Is the system serial number successfully displayed in Coconut Battery? And, if you are running 10.12.4, this might be a handy opportunity to update your Sierra system to current 10.12.6 (which might result in your serial number magically appearing in About This Mac --- or not. Yes, of course. I think Dave Braine was suggesting that if Coconut Battery shows the serial number, then your issue is one within software (and not a case of the serial number disappearing from firmware) But, to make this a question: Is the system serial number successfully displayed in Coconut Battery? And, if you are running 10.12.4, this might be a handy opportunity to update your Sierra system to current 10.12.6 (which might result in your serial number magically appearing in About This Mac --- or not. Click to expand.Ah. Totally forgot Coconut displays that, and even if I had recalled assumed it pulled that info from the same place as system report. It doesn’t know the serial either. I did think of updating Sierra or upgrading tonthe bew isx in hopes it’d magic wand it away but there’s the potential of exacerbating the problem and being stuck in some OS limbo with the OS install being partially complete and failing to authenticate the machine. Desktop parallels 9 mediafire. (29.24 KB) Parallels Desktop 11 1 2 torrent (1) (29.24 KB) Parallels Desktop 11 1 2 torrent (289.35 MB) VMware Workstation 11 + keygen (8.98 MB) winzip 11+ Keygen+Serial (377.06 KB) FIFA 11 Keygen XopoM com Source title: Fifa 11 Keygen Mediafire| facebook games guide (9.83 MB) Your Uninstaller! I emailed a local authorised mac service place. They wanted to charge me like 300$ to do a complete system diagnostic when I told them I have a battery that’d shuffled off the mortal coil and wanted a replacement done. On top of what they reckoned it’d cost to replace the battery (also obscene). I have little faith. That temibds me I need to actually replace said battery at some point and restore the counterbalance of the screen (took the paperweight battery out so it wouldn’t swell and wreck stuff). Nothing was more appetizing to me than seeing a great-looking macaroni and cheese in a red vessel. Call me crazy–and you’re probably right–but I’m an incurable bakeware addict and like special pans for certain dishes. 5 cheese macaroni and cheese gourmet menu.
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