I was able to complete this repair in less than 40 minutes, thanks to the author and his easy-to-follow guide!
Regarding Step 10 - I found it easier to use a Phillips #000 screwdriver (instead of the recommended #00 size) for the two “orange” 3.1 mm Phillips screws, as it did not slide off the tiny screw heads like the larger-sized screwdriver would.
Thank you so much - I found it very easy to follow this guide (took me 38 minutes through all steps).
The Mac rebooted twice in short succession right after start-up, then completed the bootup without a hitch.
Lorsqu'il en aura reçu, il pourra afficher un graphique de sa réputation au fil du temps.
Voici un aperçu de ce à quoi ressemble ce graphique :
Aucun point de réputation obtenu pour l'instant.