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HOW TO UPDATE MAC OS INSTALL
HOW TO UPDATE MAC OS UPGRADE
HOW TO UPDATE MAC OS SERIES
HOW TO UPDATE MAC OS DOWNLOAD
HOW TO UPDATE MAC OS FREE

There are two EEPROM chips on the board, probably for the firmware (question is why there are two …). This relates to something I wanted to ask. Worst of all is that affected iMac17,1 computers were among the most expensive Mac models at the time, but now seem to be receiving the least support. It’s disgraceful that Apple, knowing of the problem, seems to be doing its utmost to prevent users from getting it fixed. Firmware updates are an essential part of your Mac’s security, improve its stability, and ensure that your Mac works properly with recent versions of macOS. I explain some of the background in this article. If you have a consumer organisation which can provide assistance, or even a lawyer, then you may find that helps. You’ll need to persist with your cause so that it escalates until senior support staff reluctantly agree to do something about this. It has been officially reported to Apple in Feedback entry FB7644127 dated 29 March 2020 too.

HOW TO UPDATE MAC OS SERIES

Of course there is, and you can read a whole series of articles and plenty of comments here (search for iMac17,1) and elsewhere.

There’s no known problem with updating firmware in the iMac17,1.

In any case, where does Apple say that upgrading your hardware prevents firmware from being updated? Surprisingly, those appear irrelevant here, it’s the internal storage which determines success or failure.

HOW TO UPDATE MAC OS UPGRADE

It’s your fault because you’ve installed a memory upgrade or done something else.

It can, it just requires Apple to dip its hand into its bulging pocket to fix it, and that’s what Apple Support is there to enable.

Your iMac17,1 can’t have its firmware updated.

Why else would Apple have spent the money developing and releasing all those newer versions of the firmware for your Mac? This too is an outright lie, as Apple has released more than four updates since that version, which apply to all iMac17,1 computers including yours.

Your Mac is running the latest version, as it doesn’t need anything more recent than 170.0.0.0.0.

It’s not, and hasn’t been since October 2019.

Version 170.0.0.0.0 is the latest version.

Be prepared to be told some surprising stories as to why your Mac isn’t running the current firmware version.

Because this isn’t yet recognised as a more general problem, to get your iMac17,1 fixed you’ll have to negotiate your way through the barriers of Apple Support.

HOW TO UPDATE MAC OS FREE

The good news is that Apple now seems prepared, on an individual basis, to fix this problem free of charge. Those iMac17,1 computers affected seem to have original Apple SSDs, which were an expensive option at the time. The biggest problem is for the iMac17,1, where many with Apple-supplied internal storage can’t update firmware beyond 170.0.0.0.0, which was current until Catalina was released in October 2019. If you don’t have its original storage, it may be possible to substitute a SATA disk or similar which has the same effect.

HOW TO UPDATE MAC OS INSTALL

Unfortunately, some have found that they have to repeat this in order to keep their firmware up to date, but others have only had to do it once, and that has enabled subsequent updates to install correctly. If you still have its original Apple-supplied internal disk, replacing that and installing a current version of macOS, perhaps to an external disk, should update its firmware to that supplied with the version of macOS you install. So what can you then do to update your Mac’s firmware? This is most frequent with specific models, such as the iMac Retina 5K 27-inch Late 2015 (iMac17,1), and can occur with other models when their internal storage has been replaced from the original. Quite a few users have had a shock when they’ve checked their Mac’s firmware, which turns out to be ancient, even though they’ve kept macOS up to date.

HOW TO UPDATE MAC OS DOWNLOAD

Simpler still, download and use my free utility SilentKnight, which does all the work for you, automatically checking the firmware version against my online database, as well as checking that your Mac’s security data files are up to date, and more. If your Mac is running Mojave or later, then look here for recent Macs, or here for older ones. The other half of the information you need is something which Apple paradoxically doesn’t provide, a list of current firmware versions by model. Of course that only tells you what version is installed, and not what it should be. Is your Mac’s firmware up to date? It’s simple to check: use the About This Mac command in the Apple menu, click on System Report… and, in System Information, read what it reports for System Firmware Version (in the Hardware Overview).