my macbook pro 13 mid 2009 doesn't recognise the battery

Hello djg-macris and welcome to Apple Support Communities,

So the update ran normally? And the MBP restarted normally?

If so try an SMC reset:

Reset SMC

http://support.apple.com/en-us/HT201295

What are the symptoms? What have you checked? Menu Bar? System Information>Power? The side power button?

Ciao.

It certainly does not recognize the battery, Run an Apple Hardware Test:

http://support.apple.com/en-us/HT201257

You may have to use the original installation disk with the AHT instructions on it.

Note that an error free AHT is not definitive.

Ciao.

djg-macris wrote:

I run AHT (cmd + D) and an error 4SNS/1/40000000 TB3T-128.000 (i think that's the right number)

After a Google search this is an error on the battery temperature sensor!! 😟

That is correct, it is a battery sensor error. Make plans for an appointment at an Apple store genius bar. This is a hardware issue that only they can rectify.

Ciao.

Your battery report looks very odd, especially in what is missing from it. Is this the original battery or is it a replacement battery? If a replacement, from where di you get it?

Here is what the first section of the "Power" screen looks like on my 2013 13-inch MBP with its original battery:

You report has nothing above "Charge information" section, other missing items, and a lot of zero values. I doubt a failed battery temp sensor would wipe out all those values. That is what makes me ask if is this a replacement--I'm thinking counterfeit.

Have you tried resetting PRAM and SMC?

Reset SMC

http://support.apple.com/en-us/HT201295

Reset NVRAM

http://support.apple.com/en-us/HT204063

Otherwise you might try doing a hard reset of SMC. Follow the instructions for "a battery you can remove" You'll have to open up the MBP and remove the battery.

Otherwise maybe bad battery. Greek?

"Is there any way to reinstall the SMC??"

Well not sure how these were done when they were manufactured, but the SMC is actually a chip on the logic board;

http://www.aliexpress.com/store/product/New-For-MACBOOK-PRO-A1278-SMC-EC-CHIP-i5 -i7-CPU-P-N-820-3115-B/835633_1445006991.html

So while it might be possible to redo the firmware in the SMC the only other way would be to remove the current chip and replace it.

So basically the overall answer is no!

"I think that this update is the problem..."

Did you get messages to install the update? Given that it was posted in Nov. 2011?

Are you sure the update failed?

Wait....

" Without battery installed i ran this: MacBook Pro SMC Firmware Update 1.5"

I've never tried a SMC firmware update without the battery installed!

So you still have that update on your computer?

http://support.apple.com/kb/DL1474

You might see if it will run again now that you have an actual battery in there.

Don't panic if this happens:

"When your computer restarts a gray screen will appear with a status bar to indicate the progress of the update."

That's normal!