

The procedure for updating to a new version of macOS on incompatible Macs is as follows: You can find a list of all the Macs supported Before installing Monterey on an older Mac, make sure that your Mac is compatible with the patcher. A new SSD will make your MacBook pro A1278 feel modern again and will assure it will work for many years to come.Note that macOS patchers cannot perform magic and not all Macs will be compatible.

We highly recommend this upgrade path even if your mechanical hard-drive still works.

Once the installation reached the part at which it asked you to choose a language, replace the old hard drive with your new one and complete the installation.Tell the mac to install on the external disk.If you do not know how to do this simply follow one of these guilds Yosemite and earlier or El-Capitan and later Make sure the disk is initialized and visible.Connect the new SSD using the sata to usb cable to the MacBook.Once you got all the tools the process is very straightforward. A working internet connection (to download the OS).So without any more chatter, here is how you can have it done: It's true that the performance is clearly slower than a brand new MacBook pro but we still think that paired with a good SSD your old laptop can be used for many more years with the latest OS version released by Apple. How do we know? simple really, we found a way to install high-sierra on older MacBook pro's (A1278 variants from 2008-2011) and we could see clearly that the OS runs very nicely on the computers. Apple has done this officially because it claims the hardware on these older computers is not compatible with the new OS but this does not seem to be true. As you may or may not know, and you probably know if you have a MacBook pro from 2008-2011, it is not possible to install the latest and greatest version of mac os-x on your precious MacBook pro.
