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Mid 2006 / Model Number: A1181 / black or white case / 1.83 or 2.0 GHz Intel Core Duo processor

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After Logicboard replacement: Why can I not boot my MacBook Pro?

The logic board of my MacBook Pro (15'', bought Feb 2008) has been replaced by technicians of a regular Mac Store. Before it was replaced I used to run the computer off the mains, because my battery did not function properly. Now after the replacement I cannot do this anymore. In fact I cannot boot the MacBook Pro at all.

I could not boot it in the store so they took it back. When I came a second time to collect it, I was able to boot it, but only after they tried a couple of different magsafe chargers. They said to me it did not boot because they used a 60W adapter, when it should have been an 85W.

At home I have an 85W adapter and still cannot boot it. Needless to say that my adapter worked fine before the logic board replacement. I find this very confusing. Can anybody shed some light?

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Why not take it back to them again and tell them it will not boot? Sounds like they need to fix the issue.

完成的

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bjr youssou je suis nouveau sur ce site. Je viens de voir ta demande d'aide d'après ce que j'ai compris sache que en général les techniciens de Apple stores se sont que changeurs de pièces (modules ou carte mère) .

Ils ne sont pas spécialisés dans la réparation au composant près, ils ne savent pas utiliser un multimètre ou un oscilloscope pour détecter une panne ou suivre un signal à la trace et ne savent pas faire la différence entre un composant passif ou actif. Alors comment tu veux qu'ils puissent te réparer ton appareil ou ta carte mère.

1) Il faut que tu saches démonter ton Mac-book.

2) Branche ton chargeur de batterie, vérifie s'il démarre ( sinon

3) Si ta batterie est bien chargée et il ne démarre quand même pas.

4) Vérifie les nappes de l'inter marche arrêt, tu n'a qu'à suivre ) partir de ton bouton Power

5) Vérifie s'il n'y a pas d'oxydation sur la carte mère

6) Vérifie les soudures.

Après avoir vérifié tout ça et rien remarqué donc là tu dois avoir une panne d'alimentation sur la carte mère. Donc là je ne pourrai d'aider grand chose à moins que tu connais les composants passifs et actifs

parce que là tu t'attaques à des composants CMS et circuits BGA. Si tu métrises ça tu pourras détecter ta panne très facilement.

Attention à ne pas remettre ton ordinateur à n'importe qui, il ne fera qu 'aggravé les choses en général la plus part des réparateurs informatiques ils ne possèdent aucune compétence dans le domaine de la réparation en nouvelle technologie.

Plus besoin d'information: adamtech@live.fr

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Hi Adam,

First of all thanks so much for your post! I am really sorry, but despite my nick name I am not a native French speaker. This is why I write in English. (Not my native tongue either, but at least I am fluent as I have been living in the UK for the past 12 years).

However, I tried to understand what you are saying by using my really very basic school French.

Just for communication's sake I will repeat what I think I understood.

You said something about Apple Store technicians changing parts like the motherboard when they do not know much about its components:

"They do not know ho to use a multimeter/circuit analyser or an oscilloscope for detecting a fault or trace a signal and they do not know the difference between an active or passive component. So how do you expect them to be able to repair your computer or your motherboard?"

"1) You must open up your mac book."

(I guess, you mean really unscrew and open it?)

"2) Connect your battery charger, check if it starts"

(I guess, 'it' is 'the computer')

"3) If your battery charged up and it it still does not start"

(my battery has been faulty for the past two years. When I plugged in my magsafe adaptor the macbook pro would start up and run off the mains just fine - before the motherboard replacement, that is)

"4) Vérifie les nappes de l'inter marche arrêt, tu n'a qu'à suivre ) partir de ton bouton Power

Check the ... les nappes de l'inter marche arrêt" (sorry you lost me here... I cannot translate it)

"6)Check the solders."

"After having checked all this and you did not find anything, then you must have a power supply problem on your motherboard. With this I will not able to help you much unless you know the active and passive components because this kind of problem you tackle at the CSM (?)and the BGA (ball grid array) components. If you (metrises?) them you will be able to detect the fault easily."

''"Be careful not to hand your computer over to just anybody, it will usually only make things worse. Most of the computer

repair people possess no competence in the field of information technology."''

I think you might be right and Apple technicians really are not highly trained specialist. And indeed they do not seem to know much about the inner workings of a, say, motherboard. Except perhaps about replacing it.

The reason why I used the Mac Store to replace my mother board was, it was a free replacement because of a faulty Nvidea GPU failure (widely publicised on the internet).

Let me know, whether I understood you okay-ish and then I can see what I can do for myself. But I am not a great techy (no knowledge of active and passive components) so in the end I will probably have to rely on someone tech minded.

Thanks also for your e-mail address. Much appreciated.

Mine is youssou[at]linuxmail.org if you prefer to continue this conversation by e-mail. But then of course people with a similar problem will not be able to find the post.

All the best,

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Hi Justin,

Rang an Apple authorized service provider to get a second opinion. This is also because Adam (see above) seems to have warned me of Apple store technicians.

But the person I spoke to over the phone also felt the people who replaced the logic board need to sort out whatever is wrong with it now. Same opinion was an Apple care technician I spoke to - so back to the shop it is.

Will post the outcome.

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