Instructions

First, complete all the steps from the article Manually install Fairphone OS on FP3/FP3+

Apple macOS X 10.1x

1. Once your Fairphone 3 is in Fastboot mode, connect it to your computer using a USB-C certified data cable
2. Locate the archive you downloaded in the previous step, (usually in the Downloads folder)
   •   Open Chrome Browser
   1. Press simultaneously the keys "Alt ⌥ (option) + Cmd ⌘ + L". A new tab called "Downloads" will open
   2. Look for the last download, the name starts with "FP3-...". Click on the writing "Show in Finder"
      
      A new instance of Finder will open
3. Open (Double-click) the archive you downloaded, the name starts with "FP3-...". The files will extract in a folder with the same name. Wait for it to be completed
4. Once done, press simultaneously the “Cmd ⌘ + Space” keys. "Spotlight Search" will open
5. Write "Terminal.app", then press the "Enter ↩" key
6. In the Terminal window, type "cd " then press space
7. Drag the folder extracted previously inside the terminal window, and press the "Enter ↩" key
8. Type "./FP3_flashall.bin" (alternatively try "./FP3_flashall_mac.bin") and press the "Enter ↩" key
   If a similar error message appears:
   
9. Click on "Cancel"
10. Go to the Apple menu (top left corner of the screen) →System preferences... 
    
11. Click on the icon Security & Privacy
12. Click on the General tab
13. Click on Allow Anyway
    
    
14. Now, go back to your Terminal window
15. Type "./FP3_flashall.bin" and press the "Enter ↩" key
    The script will now run for a couple of minutes like in the following picture
    Once done, you will see the following picture
    - IMPORTANT -
    It can take up to 15 min. Do NOT interrupt the process, it might damage the device!
16. Done, your phone is now up to date. Your phone will now reboot, finishing the system update for a few minutes. You can now safely unplug your FP3/FP3+ from your computer
17. Once done, for safety reasons, we strongly advise you to lock again your bootloader. To do so, visit the article Manage the bootloader of your FP3/FP3+ and follow the instructions starting from point 4. Lock your bootloader