Wrong SMC version on MBP 8,1?

I have a MBP Late 2011 model (8,1), and it appears to have the wrong version of the SMC firmware installed. I have no idea how this could have happened - I'm the sole owner of the MBP.

I have version 1.68f99 installed (below), which appears to be the version for the early 2011 model. I should have 1.68f98 installed.

I recently installed a new battery, and after 14 charges the capacity is down to 63%.

I'm worried this may be related to the wrong SMC version. Is my laptop a dud at this point? I've read that it's impossible to install the wrong SMC version (there are supposed to be safeguards against it), thus Apple doesn't have way to manually change versions.

Please help =(

MacBook Pro (13-inch Late 2011), OS X El Capitan (10.11.3), Safari Version 9.0.3 (11601.4.4)

Posted on Mar 27, 2016 8:33 PM

25 replies

my ginger

Level 5

4,928 points

Mar 30, 2016 8:10 AM in response to martel_420

When you push the power button, do you get anything? A startup chime, a beep, anything at all? If you hold down Command R key at startup,will it go to a command line? You get a black screen which will scroll white with info. With a bootable installer, you hold down the option key at startup. Does any of this happen? A pram reset usually will fix a screen problem. You might need to let it chime 3 times.

Mar 30, 2016 12:09 PM in response to my ginger

When i push the powerbutton i got a black screen, when i got no chime, no beep (i go a beep if i start without ram, i tried)

If i old down cmd + r the fan starting at full speed..

I tried PRAM, but when i'm still holding for the second time the fan starts at full speed again ..

When i try to boot via USB, (by holding the option button) the comp shuts down, then reboot and fan starts at full speed without stopping ... (i must stop him manualy)

I will try with a new HDD to see if someting else happen.

my ginger

Level 5

4,928 points

Mar 30, 2016 2:09 PM in response to martel_420

Try command V. This is verbose mode. This will give a black screen with white text. When starting from verbose or single user, sometimes you have to keep holding down the keys for a little while. If you get this and if stops before completing write down what the text says. You may need to download and install on a cd the firmware update and try to install it, if you can get the optical drive to take it. If you have a late 2011 Macbook Pro, internet recovery is Command Option R.

my ginger

Level 5

4,928 points

Mar 30, 2016 3:16 PM in response to martel_420

If by chance the SMC flash you did turned the screen resolution and volume off. Try when booting to toggle the F2 and F12 keys. Also a hard startup is holding down the power button for 10 seconds. You could try another SMC reset( Control Option Shift and power button) for 10 seconds. You might need to take it to the apple genius bar to see if they can re-flash the firmware.

kaz-k

Level 9

51,084 points

Mar 27, 2016 8:44 PM in response to mathieufromst. john's

My MacBook Pro early 2011 is also the same version firmware as yours. I think it's not the problem at all.

Mar 28, 2016 10:57 AM in response to mathieufromst. john's

Two images of my original post were removed because I forgot to censor the serial numbers.

Here they are:

Mar 29, 2016 12:25 PM in response to my ginger

I posted here :

https://discussions.apple.com/thread/7513225

Now i cant boot, i have black screen and fan running high .. So i dont know how to fix it and acess to settings..

Mar 28, 2016 8:24 PM in response to martel_420

Ouch - I saw in your other thread that you flashed your EFI and can't turn it on anymore.

I hope your laptop isn't bricked =(

I'll make sure not to try it.

Mar 30, 2016 1:29 AM in response to my ginger

I only ran SMC update,

I had the wrong SMC, and also having kernel_task running over 900%

I have a bootable installer, but cant run it because my macbook doesnt boot ...

Mar 31, 2016 2:46 AM in response to my ginger

Ok, i tried but its not working 😟

I tried to book with the old HDD (to load the previous original firmware) but its not working.

I'll try a Genius bar and see if something can be done.

Thx

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Wrong SMC version on MBP 8,1?