Aller au contenu principal

Réparez vos affaires

Droit à la réparation

Pièces & Outils

Won't boot up bad I/O board?

My MacBook Pro has a bad battery connector possibly. Thats what I initially suspected and hoped for. Or, it could be bad I/O board or bad logic board.

It was working fine when I shut it off one day. I came back some days later and it just wouldn’t power on again. It has a newer battery and charging cord. The thing lights up when I attach the cord.

The first pin on the battery connector has no continuity but the rest of them do. I did leave it plugged in constantly when it was working. I’m wondering if I burned something out in the battery connector. A new one is cheap but I got discouraged after someone I asked on this website said that it was likely a logic board problem and supposedly my system had that type of failure frequently.

It’s a MacBook Pro 15" non-unibody model A 1211.

I could try replacing the battery connector if it might help.

What do you think? might it be worth trying?

Répondre à cette question J'ai le même problème

Cette question est-elle utile ?

Score 0

Commentaires:

I spun your MacBook Question out so others could offer their viewpoints.

par

thank you dan.

par

@mayer - any ideas?

par

Ajouter un commentaire

Kits pour Nintendo Switch

Une solution rapide pour reprendre le jeu

Acheter un kit pour Switch

Kits pour Nintendo Switch

Une solution rapide pour reprendre le jeu

Acheter un kit pour Switch

1 solution

I changed the icon to the machine you said you have.

Let’s get some information first:

Here is the pin out for the Mag-Safe:

Pin 1GND (0 V)

Pin 2V+ (14.5 / 16.5 / 18.5 / 20 V DC)

Pin 3Charge control pin

Pin 4V+ (14.5 / 16.5 / 18.5 / 20 V DC)

Pin 5GND (0 V)

What is the wattage of your Mag-Safe? What are your readouts?

When you plug it in what color is it and does it change within 10 seconds?

Try an SMC reset:

Connect the power adapter to the Mac. On the MacBook / Pro's keyboard, hold down the Shift+Control+Option keys and the Power button at the same time. Release all keys and the power button at the same time – the little light on the MagSafe adapter may change colors briefly to indicate the SMC has reset.

Cette réponse a-t-elle été utile ?

Score 0

Commentaires:

i have already tried the smc reset i have tried replacing the tiny internal battery i have tried removing the cord and battery then holding down the power button to clear static build up . its a 15 inch non unibody macbook pro model A1121 the charger says it puts out 18.5 v 85 w.

I am not able to test with the dmm until tomorrow most likely but i appreciate the info on the pins. I will get back to you on that asap. i have a part to get from tractor supply before it closes. thanks.

par

Ajouter un commentaire

Ajouter une réponse

Jessica Steiner sera éternellement reconnaissant.
Afficher les statistiques:

Dernières 24 heures : 0

7 derniers jours : 0

30 derniers jours : 1

Total : 31