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Questions tagged [firmware-password]

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Can an Apple expert reset or delete my firmware password on 2017 iMac running Monterey remotely or must I go to Genius Bar at store? I have receipt

I can't get to an Apple store. Is there another way to do this. I have my receipt on line for proof of purchase.
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27 views

Do I have to go to an Apple "genius" or Geek Squad to undo firmware password that I forgot on 2017 iMac, Monterey? [duplicate]

Can I do this myself with guidance? I do have the receipt.
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1 answer
64 views

How to skip Safari only Guest asking for firmware password?

I was trying to enable guest account in Mac. When clicking guest account in login screen, the Mac asked for a restart to enter Safari only mode. I have selected yes to restart and the Mac now asks for ...
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2 votes
0 answers
227 views

Mac Firmware password suddenly appeared after moving drive

/tldr - Moved original Apple SSD to new logic board. No firmware password before, now suddenly there is - even on original board (after clean install). Sharing experience and insight from others - not ...
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1 answer
55 views

Firmware Locked Password [duplicate]

I have an 2012 imac with the most current Update software being High Sierra. I've seemed to have locked the firmware and I can't get passed it I don't have a receipt so no in store help. I've put &...
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3 votes
1 answer
7k views

Accidentally activated firmware lockscreen, how do I go back?

I logged out of my Macbook (pro 2019, Catalina) then after mistyping my password, accidentally hit the “recover password” button (or something along those lines, can’t remember). I do remember my ...
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  • 153
1 vote
1 answer
776 views

How to disable Boot Camp and prevent any other OS installations?

Is it possible to completely block the use of Boot Camp such that the current Mac OS installation is the only OS available to use? This is for T2 security chip enabled Macs specifically. I found this ...
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  • 111
1 vote
0 answers
35 views

How is the timeout for a wrong firmware password determined?

I noticed that when you set a firmware password on your Mac and you enter it incorrectly, the timeout before you can enter a new password keeps increasing with every wrong attempt. I was wondering: ...
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1 vote
1 answer
303 views

How can I undo nvram recovery-boot-mode=unused if I don't know firmware password? [duplicate]

While trying to get into recovery mode, I used this: sudo nvram recovery-boot-mode=unused ... hoping it'd take me directly to recovery mode. Instead, it prompts me for the firmware password. Which I ...
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  • 113
3 votes
1 answer
357 views

Set Mac Firmware Password from Linux

I would like to set a firmware password on my MacBook Pro, but I only run Linux on it. I know I could download a macOS installer and use that to set the firmware password without installing macOS, but ...
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  • 188
1 vote
1 answer
1k views

iMac SSD upgrade – Firmware password lock

My dad bought a used 21.5 iMac (2017) a few weeks back (previous owner bought it new but decided to sell after a week, so its basically new.) Given that it came with a 1TB fusion drive, we decided to ...
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1 vote
0 answers
252 views

Using a script to set the firmware password manually

First off, I am using macOS Mojave 10.14.6. In this answer, it shows how one could manually set a firmware password in previous versions of OS X without any user input, excluding sudo, which is ...
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2 votes
0 answers
417 views

Not Admin | Firmware password error | Recovery Mode wont boot

This probably sounds pretty sketchy, so I’ll preface my question with a brief run down of how I got here... Pretty sure I was hacked... It’s a mid-2012 running High Sierra on a SSD harrdrive. ...
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0 votes
1 answer
114 views

How to restore a Mac if you forgot recovery password

As the title, is there a way to restore a Mac when you forgot the recovery password, I tried with command + R during reboot, but it doesn’t help.
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0 answers
392 views

Install Linux without firmware password

I have a Late 2013 MacBook Pro with an unknown firmware password set. I don't know the firmware password because the laptop is a castoff from a company and I have no way to get the password from them. ...
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1 answer
322 views

Mid 2012 MacBook pro, firmware lock [duplicate]

I was wondering if there was any way to remove a firmware password from a mid 2012 MacBook pro with USB or something. I just bought it off of Craigslist (sketchy i know but....) When it comes up all i ...
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-2 votes
2 answers
2k views

weird! MacBook Air got a firmware password with keyboard shortcut

Something I never saw happened to my MacBook Air 2014. I was pressing some keys when it restarted itself to the Firmware password screen. I never set up a firmware password and two minutes before I ...
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1 vote
1 answer
883 views

Upgrade to Mojave messed up Guest account

Prior to upgrading to Mojave, I had the Guest account enabled, so that if my laptop went missing, the person could at least access Wifi, and I would know the location through Find My Mac. I have the ...
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1 vote
1 answer
156 views

It's possible to use a Mac invited account with firmware password enabled?

I have the firmware protection enabled on my Mac, but whit this property I can't use the guest account of the computer without ingress the firmware password. I'd like to avoid this password request ...
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4 votes
1 answer
2k views

I can't type special characters on my Mac firmware password request

I have the firmware password enabled on my MacBook Pro. I had never used it until this morning, when trying to access from another partition I have to write it inevitably to be able to do anything; I ...
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0 votes
1 answer
1k views

Cant enter firmware password on Mac Pro 5,1

I need to enter recovery mode and finally remembered my firmware password using the magic at https://www.cnet.com/news/use-the-calculator-to-reveal-a-macs-firmware-password/ but the padlock screen ...
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2 votes
3 answers
9k views

Macbook pro locked/disabled

My Macbook pro got disabled. I tried to go into the recovery mode using cmd+R and internet recovery mode using cmd+opt+R. Both ask for my firmware password, and when I enter the password,although ...
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1 vote
3 answers
31k views

Reinstall OSX without having firmware password (but having root access to osx)

I know that the question can sound suspicius but let me explain. I've installed in end 2015 a frash mac osx. I setted up the firmware password and never used again. Until today. The problem is: I ...
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0 votes
1 answer
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Booting into Windows partition prompts for firmware password

I installed Windows 10 via Boot Camp couple of months ago and it worked normally. Today I tried to boot into Windows, but a password form pops up (firmware protection form). Booting into macOS without ...
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0 votes
2 answers
4k views

Reset or access administer password on Macbook Air

Okay, here's the thing, I bought this Macbook Air at a thrift store a couple days ago, everything was fine when I checked, I could access the Mac and surf the web, but I noticed something when I tried ...
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1 vote
1 answer
1k views

Empty Firmware Password?

I was wanting to reveal the EFI password on my Mac using this in the Terminal: sudo nvram security-password but instead of outputting hex data, it gives me this: nvram: Error getting variable - '...
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  • 609
4 votes
1 answer
2k views

Mac OSX : How to password protect an .app or other folder from deleting/moving by user/admin/root

I'm working on a security agent. Wherein I do not want to allow any user/admin/root to delete my security agent application normally. If user/admin/root try to delete the .app file then OS should ...
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  • 165
0 votes
1 answer
3k views

How do I boot to safe mode in Mac OSX 10.9.3?

I followed the instructions here but it did not seem to work. How do I boot to safe mode? I am on Mavericks 10.9.3.
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  • 447
2 votes
1 answer
3k views

How can I run Apple Hardware Test with a firmware password set?

I have a firmware password set using the Firmware Password Utility. When I hold D immediately after power-on to start Apple Hardware Test, nothing happens. My computer boots normally. How can I ...
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1 vote
1 answer
1k views

Attempting to boot into Mac partition after Boot Camp results in a password lock

I have just installed Windows on my Mac and it worked well, but after finishing and trying to go to Mac partition it is shown on the screen a lock icon with a password field. I tried to enter ...
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1 vote
2 answers
7k views

Setting a firmware password

Currently trying to use a script (preferably shell) to setup the firmware password on a fresh OSX install. I obviously found this: http://osxdaily.com/2014/01/06/set-firmware-password-mac/ which ...
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1 vote
0 answers
196 views

Do I need to disable my firmware password to use Migration Assistant?

I'm moving to a new machine from an old machine with a firmware password. I seem to recall reading when I set up the firmware password long ago that the simple migration process will not work from a ...
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1 vote
0 answers
269 views

Kernel Panic on Shutdown

For a few weeks, every time I shutdown my laptop, It immediately reboots and displays a kernel panic error. I haven't been able to cleanly shut down for some time. The machine is a 15" Retina Macbook ...
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2 votes
2 answers
2k views

Require login for Single User mode?

Is there a way to require a password to login to single user mode? I don't want to use a firmware password, because that will not only disable single user mode, but also Startup Manager (which I use ...
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  • 587
12 votes
4 answers
34k views

How can I reset the firmware password on a MacBook Air?

I purchased a MacBook Air from someone 4 months ago and everything was working perfectly. There is no user name or password needed to log in and I've never had problems using it. Now I would like to ...
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  • 121
4 votes
3 answers
845 views

What is accessible to an attacker who has reset my administrator password?

I understand that it is possible to reset the administrator password on a Mac, allowing someone with physical access to a machine to create a new password that gives them access to all files unlocked ...
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11 votes
1 answer
4k views

With a firmware password set on a Retina MacBook Pro, what are recovery options?

I am considering setting a firmware password on my Retina MacBook Pro for security reasons. If I do this and later lose the password (or other such extenuating circumstances), how can the data be ...
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  • 10.9k
7 votes
1 answer
557 views

Do Apple Geniuses check if computers are "lost" with iCloud's Find My Mac before performing firmware password resets?

Firmware password protection1 is nice, but would the Genius Bar actually mind my "lost" status noted online if my computer ends up in a store to reset the firmware password (which is the easiest ...
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  • 6,024
2 votes
1 answer
473 views

Open Firmware Password complexity

I couldn't find an Apple doc stating Firmware Password complexity limitations, e.g. length and allowed special characters. Does anyone know if Apple states this information somewhere? I don't want ...
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  • 161
8 votes
2 answers
600 views

How to wipe a thoroughly secured old computer

I have an old computer of mine (the first MacBook Pro model) that I'm trying to wipe clean and repurpose. But back in the day, I was quite security conscious, and my own barriers are foiling me: The ...
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1 vote
2 answers
810 views

Is is possible to prevent OS X firmware password removal?

The title pretty much says it all. I have set a firmware password on my MacBook Pro just to make things a bit harder in case of theft. Still, by pulling the RAM and resetting the PRAM, it would be ...
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