Thank you very much. I had some trouble with the home button (not reassembled properly), but on the second trial, it worked as described.
Not related to the tutorial, but to the phone itself: I did have problems with the Pentalobe screws at the bottom of the phone (step 1) - I was not able to unscrew one of them, I had to “force” the screen out of the case with one of the screw still in place. It worked.
It worked smoothly! Less than 15 minutes. I used a OEM-battery, instead of an original one.
Took me less than 10 minutes to complete. Computer rebooted as soon as put the MagSafe connector. I had to force a synchronization of the date/hour in Preferences to get it up-to-date (I guess the system would have done automatically a little bit later).
The battery came from iFixit. Battery stats, as shown by Battery health https://fiplab.com/apps/battery-health-f... show now:
Original max: 4680 mAh, Current Max: 4758mAh; Health: 102%, OS X Health Status: Good
The battery came is reported to be 3 years old(!) and came at about 80% charge
Instructions are very clear!
I think I found the way to have the new battery to charge!!!!!
Essentially, you have to follow a very precise order: 1/shut down the computer, 2/take off the magsafe connector, 3/remove the old battery, 4/put back the magsafe connector, 5/put the new battery, 6/power on, each time leaving a few seconds in between.
I just replaced the battery as indicated (with a iFixit part), but the computer says there is no battery connected, even after letting the power plug in for more than one hour.
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.