1.     Find your Boot ROM version using one of these two methods:

a.       If you have an old working SSD on hand, boot up your computer. You can locate the Boot ROM version number by clicking the Apple icon -> “About this Mac” -> “System Report”. It is listed towards the bottom of the hardware overview. Record this number. (See attached pictures for guide)

b.       If you do not have a working SSD, you can use recovery mode to find your Boot ROM number:

                                                               i.      Press the power button

                                                             ii.      Immediately after, hold down command + R for several seconds until you see the internet recovery globe appear on your screen

                                                            iii.      Choose your internet, wait for it to load, and select your language

                                                            iv.      Go to utilities (tab at the top of the screen), and click on Terminal

                                                             v.      Type these words into the Terminal:

system profiler SPHardwareDataType

                                                            vi.      Press Enter

                                                          vii.      Record your Boot ROM number

2.     Check to see if your Boot ROM is up to date using our compatibility chart.

3.     If your firmware is out of date, update your Boot ROM

a.       If you have an old Apple OEM SSD or can borrow one from a friend, all you need to do is plug in your old drive (internally) and update to High Sierra or Mojave through the App store.
This should force the Boot ROM update. If that still does not update the Boot ROM, the most robust way is to do the following:

                                                               i.      You need:
 1 x Apple Drive
  1 x USB (8 GB or more)
      **IMPORTANT NOTE: Both will be erased in this process, please backup the drives before proceeding.

                                                             ii.      Boot up your computer with your apple drive inside.
      Please make a USB Installer or you can buy one here.

                                                            iii.      Make sure you have backed up your data on the USB and on your old drive!

                                                            iv.      Turn Mac off

                                                             v.      Power on the Mac, holding down Option until you hear chimes.

                                                            vi.      Select the USB from the boot menu.

                                                          vii.      Select "Reinstall your Mac" and follow the on-screen instructions.

                                                        viii.      Re-install your Feather SSD and see if it is recognized now!

b.       If you do not have an old Apple OEM SSD, you can order an installation kit from us, call 0800 195 40 72 or contact us here.
Please note that it is a £100 deposit, but you will get £90 back upon return.