EFI Firmware Update 2.0, extended "bang" sound natural?

I ran software update this morning and installed an MBP mid-2010 "EFI Firmware" update.
Here's the link:
http://support.apple.com/kb/DL1331
On start-up, I first heard an extended "bang" sound and the usual start-up chime then followed by a progress bar and not the usual spinning object.
Are these normal?

hey there I ran software update this morning as well and installed the MBP mid-2010 "EFI Firmware" update and the safari update. On reboot there was a loud extended beep sound. Everything seem to work normal. Does anybody know where did this came from, and if it is something to worry about. thx in advance
cheers

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I downloaded and installed the: Mac mini EFI Firmware Update 1.6 on my mac mini running 10.8.1, was I correct in doing this ?

I downloaded and installed the: Mac mini EFI Firmware Update 1.6 on my mac mini running 10.8.1, was I correct in doing this ?
I didn't see this update come up in "Software Update"
If I was not meant to install this update, would it cause ANY damage at all to my mac ( this is my second as I dropped the first )
If I were to re-install ML would this fix any errors that this may have caused ?
The bottom of the page I link to says:
Boot ROM or SMC Version Information: MM51.0077.10
But when I click on "About this Mac" it says:
Boot ROM Version: MM51.0077.B10
SMC Version (system): 1.75f0
What does the additional "B" mean?
My mac mini is the Mid 2011 Model.
I am sorry if I am sounding super paranoid about this, but I don't want to have caused any permanent damage.

Hello,
It's somewhere between almost impossible & impossible to install the wrong EFI Update with all the checks it does!
Mac mini (Mid 2011) with Intel graphics
Macmini5,1
MM51.0077.B10 (EFI 1.6)
Mac mini (Mid 2011) with Radeon graphics
Macmini5,2
MM51.0077.B10 (EFI 1.6)
Mac mini Server (Mid 2011)
Macmini5,3
MM51.0077.B10 (EFI 1.6)
http://support.apple.com/kb/HT1237
Not sure what the B means.
If I were to re-install ML would this fix any errors that this may have caused ?
No, Firmware is unaffected by any OS change or re-install.

MacBook Pro EFI Firmware Update 1.5.1 messed up my laptop

Software update just told me to install MacBook Pro EFI Firmware Update 1.5.1 a few minutes ago, and I followed the directions, having no idea what it was supposed to be doing to my computer. I hit "Shut Down", then held down the power button until I heard the beep. After the beep, the screen stayed black and the LED light just stayed constant. Then I turned the computer off using the start button again, and tried to turn it on. The hard drive or CD drive started to click rhythmically and the computer did nothing. The screen stayed black.
I then tried to restore the previous firmware, but that doesn't work. It said to hold the button until the lights flash fast, then slow, then to insert the restoration CD, which I did. It buzzed like it was going to start up, then did nothing and I got no progress screen. It still just sits there black with that power light on. Anyone got any ideas other that going to a Genius and paying hundreds of dollars?
Message was edited by: Cathy821

I followed the EFI instructions exactly as it stated and had a major problem.
Basically my problem was that the EFI did not completely successfully. It left the system in a half updated state. Unfortunately, they had to replace my entire system board. I have Apple Care so it was replaced at no charge. I originally called Apple Support and they had me try the usual things like restoration cd, reset PRAM, reset NVRAM, etc. Nothing worked. I brought it down to my local Apple store but they more or less do the same thing. They had to send it out to be fixed. Sorry, but it sounds like you're in the same boat.

EFI Firmware Update - my CONCLUSION

Just updated the EFI firmware update - and have no problems to report. Temperatures same (idle - 40 to 45 deg C) - very very faint CPU whine (same as before). ABSOLUTELY NO PROBLEMS mentioned earlier on this forum.
Conclusion: It seems that only very few, perhaps defective MacBooks, have been adversly affected by this firmware update. I recomend installing it - if only to confirm that all is good with your MacBook. It may be a good indicator of hardware problems - which if surfaced - can be finally resolved - Note: Just my oppinion.
I feel for those that had problems post EFI firmware update. I too was worried, but I felt it was neccessary. Some very knowledgable people on this forum recommended it - and I listened!
I doubt that Apple would release something that would backfire and they had tons of notebooks to fix. So after you install the EFI firmware - click on the shut down button. Then hold the power button long enough to see the power indicator (lower right hand corner - front side) flash repetedly - Then let go - don't hold it too long. Loud Beep will sound - then u see update screen - takes about 1 minute 30 seconds to update.
Good luck and remember all our MacBooks are still under warranty - so if you got a good one - this may prove it. =)
Cheers

Tried installing the update....install was interrupted as I held the power button too long. D'oh!
I think I'm screwed as I can't get it to restart now, and the CD slot keeps clacking away until I hold down the power button to shutdown.
Can't startup from a CD, can't run hardware diagnostics, and zapping Pram does'nt work either. Like I said I think I'm screwed. And I'm here in Baghdad, Iraq now without my beloved working MacBook.
Any help, or do I need to pack this thing up and ship it back to Apple?

HDD clicking after EFI Firmware Update 2.7

After I did the EFI firmware 2.7 update and the my macbook pro restarted, I noticed that I started to hear a clicking noise from my laptop. At first, I thought it was a normal sound that I may have not heard before but I checked my other laptops and they aren't making any noise close to this. The other two laptops I checked were also early 2011 models, one 13" and the other is 15".
Here is the recording of the sound.
http://dl.dropbox.com/u/108564/iPhone/Memo.m4a
There is some background noise but that clicking sound is the sound I hear. This is recorded with my 4S with the mic hovering around the palm rest and trackpad. I also noticed that when I tilt the laptop, I can hear a grinding sound. I tried to replicate this grinding noise on my other MBPs but I can't replicate it.
What is the best option for me? If I take it to Apple, would they actually be able to replace it for me or resolve the issue? I don't want to waste my time driving 45 minutes to Apple just so they can say it's "normal". Has anyone had this issue before and taken it to Apple?

Pretty nasty, sounds quite regular. Drives don't make that sound normally, sounds defective.
What is your machine specs, opeating system version etc.?
If your drive is grinding, that's a sign it's going to die soon, so you need to backup immediatly.
EFI 2.7 might not be the sole cause, especially if others don't come forward and report the same issue, but might have attributed to something pre-existing.
There has been a unusually high number of issues with the latest EFI firmware updates, why I don't know.
Perform a hardware check, rule out anything else.
http://www.cbscores.com/index.php?sort=ogl&order=desc
You might have a warranty call if the drive is failing.

HT1237 Searching for an EFI Firmware update to enable Lion Internet Recovery on MacBook Pro (15-inch, Mid 2010)

Hi All,
My Mid-2010 Apple MacBook Pro 15-inch started having random kernel panics lately (more than 1 month of random kernel panics now), usually associated with request such as "open new tab in Safari" etc.
Since I installed 2x4GB RAM modules from Crucial when I bought my MBP (they are +- 2 years old now) and also exchanged my DVD-drive for an extra SSD that now runs the system (fully updated 10.7.4) I have a feeling that those kernel panics might be HW related.
I wanted to run Apple Hardware Test but found out that it is no longer supported on Lion. Since I don't have any optical drive to install AHT from (also I don't have the CDs with me atm), I found out that I can install an EFI Firmware update that enables internet-based (?) AHT.
At http://support.apple.com/kb/HT4904# , the link from MacBook Pro (15-inch, Mid 2010) links to MacBook Pro EFI Firmware Update 2.6 which is for Early 2010 models only and doesn't allow me to run the installation process. I'm looking for an EFI update to enable Apple Hardware Test on my Mid-2010 Apple MacBook Pro 15-inch.
Is there an update that can do this? Is there a wrong hyperlink on Apple page or am I searching for a wrong update?
Also, even though this should probably be in a separate topic, can anyone please point me to the right direction for a good Apple Kernel Panic how-to-read-those topic?
Thank you very much in advance.

Hey Cris from London,
I would try out the recommended steps in the following link:
OS X Mavericks: If your Mac runs slowly
http://support.apple.com/kb/PH13895
Let us know if any of the steps within resolved the issue.
Welcome to Apple Support Communities!
Take care,
Delgadoh

Mac mini EFI Firmware Update 1.7 Not supported on system.

I am attempting to install the Mac mini EFI Firmware Update 1.7 on my 2012 Mac Mini (just purchased) to solve my flickering display problem. When trying to install the update, it states that the software is not supported on my system. I am connected directly to my HP 2311x monitor by a HDMI cable. I can't seem to find an alternative solution to this problem.

Model Name: Mac miniHere's the information in my System Report:
Model Identifier: Macmini6,1
Processor Name: Intel Core i5
Processor Speed: 2.5 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MM61.0106.B04
SMC Version (system): 2.7f1
Hope this helps.

EFI Firmware Update 1.2. won't install

I can't find exactly my problem but some threads are close. I keep getting software updates for EFI Firmware Update 1.2.
I shut down, then startup holding on-button until it flashes, release, buzz buzz, chime, then very briefly the apple logo and status bar, then gone, buzz buzz, chime and restart. After everything loads, there is the update window with install instructions, telling me to repeat if I see them, to no avail (tried several times over several weeks). My HD appears to be correctly partitioned, with this boot ROM: IM51.0090.B03 which would seem to indicate the update has not happened. I have unplugged all my peripherals (printer, zip drive) but not DSL modem.
any ideas?
thanks in advance
craig

I would delete the firmware updater that is in your Utilities folder and check your account settings(System Preferences/Accounts/Login Items) to see if it has been added to your login items. If so then remove. Re-run your software update and see if the Firmware update shows up again. If so then download and try again. According to Apple your BootROM should be IM51.0090.B09 after the update.
http://www.apple.com/support/downloads/imacefifirmwareupdate12.html

EFI Firmware update 1.4 was not successful, no progress bar

I have a MacBook Pro 2.16 Core 2 (MBP22.00A5.B02). Software update prompts me to download and update the Firmware 1.4 udpate. After following the instructuions, shutting down the computer, and restarting holding down the power button, I hear the beeps but nothing comes up but a blank (grey/white) screen. After several minutes (like 10) it restarts and the updater returns and shows not successful.
I tried to archived and reinstalled the OS with no luck
I have a 160GB Hitachi HD that came as ordered when I bought the computer new.
I have verified that the HD is GUID partition scheme
Only upgrade I have done is an extra 1GB stick of samsung original memory from OWC
I was hoping the firmware update might help cool down (and quiet down) this noisy "pro" laptop, but no luck. Please help someone.
Console shows:
2007-10-18 16:27:08.270 MacBook Pro EFI Firmware Update[189] MacBook Pro EFI Firmware Update version 1.4
Run the executable in the Contents/MacOS folder with '-h' option to learn about running remotely.
2007-10-18 16:27:08.272 MacBook Pro EFI Firmware Update[189] OS version is 10.4.10 build 8R2232.
2007-10-18 16:27:08.275 MacBook Pro EFI Firmware Update[189] No AppleEFINVRAM
2007-10-18 16:27:23.309 MacBook Pro EFI Firmware Update[189] EFIUpdaterController::showError:1
2007-10-18 16:27:23.309 MacBook Pro EFI Firmware Update[189] CommonUpdaterController::showError:1

Hi macinfrance!
I installed the EFI Firmware update successfully on my computer.
It seems to me that your list of nvram is lacking an entry telling your bootloader (boor.efi) exists on your normal harddrive partition.
I suggest the following (i am not quite sure if it will work):
1. Go to the system preferences and select the startdisk fane. Then, be sure to select your system harddrive.
2. Then restart your computer.
3. Make a restore CD in case something goes wrong (instructions at: http://www.apple.com/support/downloads/firmwarerestorationcd14.html )
4. Try the firmware update again.
When i type nvram i get the following contents:
084202115164:~ dagdiesen$ nvram -p
efi-boot-device <array ID="0"><dict ID="1"><key>BLLastBSDName</key><string ID="2">disk0s2</string><key>IOMatch</key><dict ID="3"><key>IOProviderClass</key><string ID="4">IOMedia</string><key>IOPropertyMatch</key><dict ID="5"><key>UUID</key><string ID="6">C68ABA3F-9D52-4699-AA58-69DDF3DCB1FF</string></dict></dict></dict></arra y>%00
efi-apple-payload0-data %02%01%0c%00%d0A%03%0a%00%00%00%00%01%01%06%00%02%1f%03%12%0a%00%02%00%00%00%00 %00%04%01*%00%01%00%00%00(%00%00%00%00%00%00%00%00@%06%00%00%00%00%00qS%00%00%f2 U%00%00%9eP%00%00%f6U%00%00%02%02%04%04^%00\%00E%00F%00I%00\%00A%00P%00P%00L%00E %00\%00F%00I%00R%00M%00W%00A%00R%00E%00\%00L%00O%00C%00K%00E%00D%00%00M%00B%00P%002%002%00_%000%000%00A%005%00%000%007%00B%00.%00f%00d%00%00%00%7f%ff%04%00
efi-apple-payload0 <array ID="0"><dict ID="1"><key>BLLastBSDName</key><string ID="2">disk0s1</string><key>IOMatch</key><dict ID="3"><key>IOProviderClass</key><string ID="4">IOMedia</string><key>IOPropertyMatch</key><dict ID="5"><key>UUID</key><string ID="6">00005371-55F2-0000-9E50-0000F6550000</string></dict></dict></dict><dict ID="7"><key>IOEFIDevicePathType</key><string ID="8">MediaFilePath</string><key>Path</key><string ID="9">\EFI\APPLE\FIRMWARE\LOCKEDMBP22_00A507B.fd</string></dict></array>%00
boot-image %02%01%0c%00%d0A%03%0a%00%00%00%00%01%01%06%00%02%1f%03%12%0a%00%02%00%00%00%00 %00%04%01*%00%02%00%00%00(@%06%00%00%00%00%00`%0b%ef%0d%00%00%00%00?%ba%8a%c6R%9 d%99F%aaXi%dd%f3%dc%b1%ff%02%02%04%04%18%004%00a%00a%006%00e%007%000%000%000%00% 00%00%7f%ff%04%00
SystemAudioVolume n
efi-boot-device-data %02%01%0c%00%d0A%03%0a%00%00%00%00%01%01%06%00%02%1f%03%12%0a%00%02%00%00%00%00 %00%04%01*%00%02%00%00%00(@%06%00%00%00%00%00`%0b%ef%0d%00%00%00%00?%ba%8a%c6R%9 d%99F%aaXi%dd%f3%dc%b1%ff%02%02%7f%ff%04%00
The first entry is referring to the normal system partition where the loader for the Mac OS resides. The second entry is referring to the hidden EFI partition on the harddrive and the new EFI firmware image.
Hope this helps.

MacBook Pro EFI Firmware Update 2.0 will not install.

Hi
The latest MacBook Pro EFI Firmware Update 2.0 will not install.
It runs and I restart my Mac but when I search for more updates it appears as a required update again.
Anyone know why this may be?

I had the same problem today. I called Apple support who transferred me to second level support and no resolution. I decided to try a combination of the items I have seen below.
I restarted my computer. I went to apple support download and downloaded the software EFI firmware update 2.0 by typing in search window. I made sure the power cord was pulled into the wall and the laptop had a FULL charge. I installed the update and the computer restarted.
I went to check the software update window after the update and restart completed and SUCCESSFUL.
I do not know why the Genius Bar or the second level support could not resolve my issues but, by me reading information here I hope at least this issue is resolved.
Thanks ALL.......... Happy Mac ing

MacBook Pro EFI Firmware Update 2.0

Hello,
I receive regular updates of the "MacBook Pro EFI Firmware Update 2.0" software. Each time I download, restart and let the update install. Each time it says update istalled succesfully... Yet each time I get the upgrade notice.
Worse now, iTunes says there is a software upgrade. But when I want to download it again I get the EFI upgrade announcement, but not the iTunes upgrade downloaded...
I've done a complete maintenance run, repair, rebuild, etc... but same results.
Thanks for any hint on what may be going wrong or how I can fix this.

I copied the version number from http://support.apple.com/kb/DL1331. That may be a misprint or typo on Apple's part. I'm posting a message asking about that in a special forum available only to level 4 or 5 users that sometimes gets replies from the folks that maintain those articles.
If I hear anything that confirms that, I will post back here, but for now I think it is safe to assume "B05" is correct.

Slow Booting time after installing MacBook Pro EFI Firmware Update 2.0 on 13 Inches Mac 2010 model

I'm experiencing a slow boot time after my computer installed a MacBook Pro EFI Firmware Update 2.0 itself on 13 Inches 2010 model, how to downgrade or fix it?
My computer is starting 2 times slower then it should be, why Apple done this to me?
Please help who really know somthing about Macs.

I have the same problem, especially when I open my laptop from sleep. It takes at least 2 minutes for the computer Internet connection to work.
Never had that problem prior to the last firmware update 2.7.
Is there a way to revert back to 2.6?

After installing an SSD into my optical bay, I've found out I need EFI Firmware Update 2.2. I can only find 2.3 which is not supported on my Mac. What can I do?

After installing an SSD into my optical bay, I've found out I need EFI Firmware Update 2.2. I can only find 2.3 which is not supported on my Mac. What can I do?

You do not want EFI 2.2, it bricked many 2011 MacBook Pro machines.
EFI 2.3 is the fix. Software Update should install it if you need it, but it goes to the boot drive as that's where the hidden EFI resides.
Check out this link of machines and their EFI versions
https://support.apple.com/kb/HT1237
Also if your SSD should be in the hard drive bay as it makes a better boot/applicaitions drive, not a good storage drive as it wears out with repeated use and is not "scrubbable" like a regular hard drive
The hard drive should be in the optical bay and used as a storage drive, you have things all messed up inside your machine, Apple doesn't support or expect the optical drive to be used as such to begin with, then as a boot drive is just asking for trouble. So use the optical bay as storage and not as a boot bay.
Also you can't install OS X or Windows or use a Firmware restore disk because it only works from a internal optical drive, which you have removed.
https://support.apple.com/kb/HT2213
You need to learn all about cloning etc., as you have no other means to boot the machine.
https://discussions.apple.com/message/16276201#16276201

Late 2011 MacBook Pro running Mountain Lion with app: "iMac EFI Firmware update"

I have an app on my MacBook Pro late 2011 model, by the name "iMac EFI Firmware update" that my computer says is useless... can I uninstall it using CleanMyMac without corrupting my OS Mountain Lion or simply dragging it to the garbage?

You can delete it. Just drag it to the Trash and this installer will be removed. As you have already installed this update, you don't need the installer anymore on the hard drive

2006 Mac Pro & EFI Firmware Update 1.2

Wondering if anyone has any thoughts on this...
Just upgraded to Snow Leopard and was prompted to apply the EFI Firmware Update 1.2... so I did as requested... MP shuts down and I hold down the power button until I see the power light pulse rapidly... I see what looks like the start of an update (w/ the progress bar) but then the MP immediately reboots, returning to the Update application...
I should mention I tried holding down the power button through the tone as well, to no avail...
My Boot ROM Version: MP11.005C.B00
Thanks!

Some tests of Leopard vs Snow Leopard and 32-bit vs 64-bit
http://macperformanceguide.com/SnowLeopard-Performance.html
Snow Leopard is faster than Leopard regardless of 32/64-bit issue. Tests were of course done on a 2009 and using 4-drive stripe (to reduce impact of disk I/O from tests).
OpenCL synthetic tests (there aren't any apps that tap into this technology)
http://www.barefeats.com/opencl.html
Reasons why you may not want the slight advantage 64-bit mode offers (from PerformanceGuide):
*Sonnet Tempo E4P* Sonnet suggest that there will be some issues with 64-bit mode, but should be resolved quickly. Running in 32-bit mode should be fine. Be sure to update to driver version 2.1.9 (or later if there is one).

EFI Firmware Update 2.0, extended "bang" sound natural?

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