I can't switch off MB Pro normally

Hi there. I have a Mac Book Pro 15'' 2.53 GHz. I bougth it a year ago and i'm really happy with it...so far. The issue is that i can't switch it off normally, to do that i have to press the upper button for more than five seconds. It brings to live for itself when I plugg in. I've tried several things such as take the batery out, press the button again for several seconds, insert the batery, work without batery, etc., but this did not work. I also feel that it runs hotter since this is happening (particularly just on the left speaker).
I'd appreciate if anyone can tell me if there is a simple solution or it needs to be repaired.
Thanks

 

Did you try resetting the SMC?

Intel-based Macs: Resetting the System Management Controller (SMC)

Or maybe repair your disk permissions?

About Disk Utility's Repair Disk Permissions feature

 

I'm no tech, but wonder if you might need to run disk repair and repair the permissions? Maybe that would set things right...

 

As I already suggested

 

Many thanks for your replies. I tried both sugestions following carefully all the steps in the links posted by diGit_S, but none worked. I'm afraid it probably needs a tech. This is always a thing to avoid around here, because it means to be without laptop for a long while. So, if anyone comes up with something...

 

So what happens when you try and shut down? Did you try closing all applications first then try going to shut down? Maybe a App is preventing it from shutting down.

 

Sorry, perhaps I did not explain myself well enough. I'll try again:
- When I finished using the laptop, i close all applications and click "shut down", but the MBP understands the order as "restart".
- The only way to shut down is pressing the upper button for five seconds. Then, i unplug and close the laptop untill the following sesion.
- When i want to use the MBP again, i plug in and inmediatly it starts working without pressing the button.
- I tried several things but none of them has worked: remove the batery and reinsert; and the suggestions by diGit_S: repair the permisions using the disk utility and resetting the system management controller (i think that this is what i do every time i press the button for more than five seconds to force the laptop to shut down).
Thanks for your patient.

 

Let's see if I understand this correctly:

- you press the power button shortly
- OS X displays the windows with the choice to either sleep - restart - shut down or cancel
- you click with your mouse on 'shut down'
- your Macbook restarts

You don't get any error messages either when shutting down?

Do you maybe have any 3rd party tool installed for handing system shutdown - hibernation - sleep?

e.g. SmartSleep is the first one which comes to my mind

You could try a Safe Boot and see if the same thing happens. Also, you can create a whole new user account and see what happens when you try to shut down when logged in with the new user account. If everything goes well with one of these two methods, some process is messing up the shut down.
In that case you could first try to repair your OS X installation using the install dvd.
Or reinstalling OS X completely.

If none of these work, I would be out of ideas and send in my Macbook. But I'm not the most tech savvy guy on these forums when it comes to Apple (haven't had much problems with my Macbook as of yet ), so if anyone else has any ideas?

 

if you plug in power and it turns on your machine.. you have a problem.

It sounds like your problem is your machine is automatically turning on if its off, not that it wont shut down.. it shuts down fine, but it powers itself back on, which is not the same as a restart. I don't know of any issues that could cause that unless something is just screwed up in the EFI.

 

Thanks again for your reply. Error messages don't appear when i shut down and i don't have any 3th party tools installed.
I followed your suggestions except reinstalling OS X completely, but the problem goes on.

This description by doh123 is exactly what is happening.

 

trip to an an Apple store is in order I believe. sounds like a possiblility of a bad charge and/ or power circuit on the motherboard.

 

right, a trip to the Apple store seems unavoidable.
Thanks everyone for your feedback.