Learn how to boot your Mac into Recovery Mode.
Get a spare USB stick (with at least as much free space as the size of our new. Once it finishes downloading, double click onto the.
dmg file we want to install from Apple, in our case "10.13.6 incremental update" from Apple If using it seems as black magic for you, call someone who understands how to launch programs and commands via Terminal.ĭownload the. The "TERMINAL" application will be used in the process. THE WHOLE PROCESS WORKED FOR ME, BUT I HAVE NO IDEA IF IT WILL WORK FOR YOU AND YOUR MAC. IF SOME STEP IS UNCLEAR, CALL SOMEONE WHO UNDERSTANDS THE IMPLICATIONS OF SAID STEP. I'M NOT RESPONSIBLE FOR YOUR ACTIONS, LOST DATA, ETC. So I'm going to list here the steps I can remember I did.Ġ.- FIRST OF ALL, THE NEEDED DISCLAIMER: DO A BACKUP OF YOUR MAC SENSITIVE DATA, ETC.
I said: "what would it happen if I tried to install the cumulative update via Recovery mode, from some spare USB I have?"Īnd that's exactly what I did. I had tried everything under the sun, and I was starting to think about not trying the update anymore. However, I will never again own a computing device that will work as hard, as reliably, for such a long time as my trusty mid 2012 15" MBP.Some days ago I was in the same situation as the original poster. The new M series processors are a harbinger that the time for such a change is approaching sooner than later. I am aware that eventually, I will have to break down and buy a new MBP. While the new MBPs are lighter and have longer battery life, they hold little performance edge over this machine in my day to day use of the machine as INTEL has done little to really advance processors in a meaningful way over the years since this machine was designed. This machine is fast, reliable and delight to use. The logic board nor the display on this machine have ever faltered. I upgraded the machine to Big Sur using a popular patching program along with an upgrade to the latest Broadcom WiFi/BT card (thanks to an enterprising young man) and am running 11.2 currently with no issues outside the ones that are plaguing even the newest MBPs. Both fans have been replaced and most recently I replaced the right side speakers as the woofer section had started to rattle. I have replaced the keyboard only ONCE in that entire time. The 1TB HDD is still used as an in-machine Time Machine drive for Big Sur.
I upgraded to 1TB SSD and a 1TB HDD and moved to APFS once Catalina came along using the HDD as an in-machine daily clone backup drive (used SuperDuper until Big Sur negated the ability to easily create a bootable clone). I upgraded the SSD to a larger one and rolled the SSD and HDD into a FUSION drive using the tools apple made available to anyone comfortable with the command line, which I ran with zero issues for several years.
I swapped out the super drive (CD/DVD burner) for an SSD (initially a relatively small one to just hold the OS).
I upgraded the HDD several times (started life as a 256MB HDD). This machine has a full compliment of ports with NO dongles needed! I upgraded the ram over time to its max 16GB. This machine was the last of the totally user repairable notebooks Apple made. Without question, a fine example of solid engineering. My daughter gave me this machine as a christmas present in late 2012. I am among those still using a mid 2012 non-retina 15" MBP.