Efi password lockout

pcgo · Feb 24, 2013, 08:37 PM

Hello a client brought me a macbook pro with a EFI PASSWORD on it, a newer macbook you can not reset by changing hardware config. The macbook hdd is clean and no apple shows up on boot. so my question is can i put the hdd in a mackbook of the same model, reformat and put back in efi locked macbook and bootup that way? I know apple has to flash efi pin away but i dont want to have to send this client to apple.

Intell · Feb 24, 2013, 08:40 PM

Only Apple can remove that.

marc11 · Feb 24, 2013, 08:40 PM

The client doesn't know the EFI pin? My understanding is the EFI pin is in the bios so no amount of HDD swapping is going to bypass it.

pcgo · Feb 24, 2013, 08:43 PM

Quote:

Originally Posted by marc11

The client doesn't know the EFI pin? My understanding is the EFI pin is in the bios so no amount of HDD swapping is going to bypass it.

I know that i just need to create a user it used to boot up and got on the admin user but he messed with it i dont need to change any bios i just need to get him logged on

Intell · Feb 24, 2013, 08:49 PM

You can't boot that machine at all. It's completely locked and only Apple can unlock it.

pcgo · Feb 24, 2013, 08:53 PM

Quote:

Originally Posted by marc11

The client doesn't know the EFI pin? My understanding is the EFI pin is in the bios so no amount of HDD swapping is going to bypass it.

it will boot to user login but he thought he was smart and erased the hdd before he brought it to me so if i put osx back on it will it boot back up

----------

[QUOTE=Intell;16901429]You can't boot that machine at all. It's completely locked and only Apple can unlock it.[/QUOT

it booted before he erased hdd so no booting at all?

if i bought a mobo for it would that work the efi chip is on the mobo right

Intell · Feb 24, 2013, 08:55 PM

Quote:

Originally Posted by pcgo

it booted before he erased hdd so no booting at all?

It booted before because the EFI was set to boot from that drive. But once that drive was removed or erased, the EFI didn't know what to boot from. Then because it has a password set, it can't show you the standard boot selection screen or try to boot from something else.

pcgo · Feb 24, 2013, 08:57 PM

Quote:

Originally Posted by Intell

It booted before because the EFI was set to boot from that drive. But once that drive was removed or erased, the EFI didn't know what to boot from. Then because it has a password set, it can't show you the standard boot selection screen or try to boot from something else.

so i would have to buy a new mobo

Intell · Feb 24, 2013, 08:58 PM

Quote:

Originally Posted by pcgo

so i would have to buy a new mobo

Just send it in to Apple.

pcgo · Feb 24, 2013, 09:04 PM

Quote:

Originally Posted by Intell

Just send it in to Apple.

he refuses to

Intell · Feb 24, 2013, 09:06 PM

Quote:

Originally Posted by pcgo

he refuses to

Then present him with the expensive bill for a new logicboard.

pcgo · Feb 24, 2013, 09:13 PM

Quote:

Originally Posted by Intell

Then present him with the expensive bill for a new logicboard.

thanks much sounds like what im going to do

marc11 · Feb 24, 2013, 09:44 PM

Quote:

Originally Posted by pcgo

he refuses to

Then it sounds suspect to me. He doesn't know the EFI password, refuses to send it to the only place that can fix it the right way and would prefer you swap HDD and maybe the motherboard instead of just sending it to Apple?

Yeah, that smells worse than three day old fish left out in the sun.

remzibi · Apr 6, 2013, 07:08 PM

Quote:

Originally Posted by Intell

Only Apple can remove that.

I can remove EFI password as well as pinlock .
All serials and user data remain untouched .
My method tested on A1286 (late2011) and (mid2012) .
Very save for hardware and software of unit .

Intell · Apr 6, 2013, 07:35 PM

Quote:

Originally Posted by remzibi

I can remove EFI password as well as pinlock .
All serials and user data remain untouched .
My method tested on A1286 (late2011) and (mid2012) .
Very save for hardware and software of unit .

Unfortunately, you cannot. You lack the authorization, tools, and knowledge to preform such tasks.

MisterKeeks · Apr 6, 2013, 07:44 PM

Quote:

Originally Posted by Intell

Unfortunately, you cannot. You lack the authorization, tools, and knowledge to preform such tasks.

Authorization, tools, or knowledge never stopped anyone on the internet.

Intell · Apr 6, 2013, 07:46 PM

Quote:

Originally Posted by MisterKeeks

Authorization, tools, or knowledge never stopped anyone on the internet.

Must be rabidz brother/sister/other.

Intell · Apr 6, 2013, 08:16 PM

Authorization: To run the tool that removes the password, oh yes I have legitimate access to it, you must enter your Apple Tech username and password into the EFI reset tool. If you enter in the wrong username/password more than four times, the tool bricks the logicboard by blowing the security fuses on the board and in the EFI chip. If they blow, the whole logicboard must be replaced. There is no way around that lockout. No way to reset the EFI password without it.

I also highly doubt you have the needed TPM access device. They're extremely expensive and Apple is very strict about them. Only giving them out to secure locations. It took my work place five months to get one. Had to sign lots of papers and legal documents. Their cool little devices that use Apple private key to access the TPM. That key is not extractable, reversible, or in any way obtainable. Much like the key Apple uses to sigh SHSH blobs for iOS devices. Without that key in the proper TPM device, it won't work. You won't even get to the stage where you enter your Apple Tech username and password.

GGJstudios · Apr 6, 2013, 08:37 PM

Based on the misinformation posted in other threads by the poster just before me, I'd say it's very likely they have no idea what they're talking about.

remzibi · Apr 6, 2013, 08:42 PM

Quote:

Originally Posted by GGJstudios

Based on the misinformation posted in other threads by the poster just before me, I'd say it's very likely they have no idea what they're talking about.

You really do not know difference between li-pol and li-ion battery ?
Well just for reference
http://en.wikipedia.org/wiki/Lithium_polymer_battery
http://en.wikipedia.org/wiki/Lithium-ion_battery

Intell · Apr 6, 2013, 08:46 PM

Quote:

Originally Posted by remzibi

That was interesting. However I use my own designed tools based on knowledge obtained by - let say "reverse engineering". With all respect, you have big knowledge about tech system but not a much about electronics. With all respect - You wrong

So you somehow reverse engineered a 256-bit AES key all by your lonesome self? I rarely say this, but that is impossible. My knowledge of electronics is just as vast and boundless as it is about tech. If you say you can do it, go in to detail about it. Vivid detail.

MisterKeeks · Apr 6, 2013, 08:49 PM

Quote:

Originally Posted by Intell

My knowledge of electronics is just as vast and boundless as it is about tech.

True.

GGJstudios · Apr 6, 2013, 08:49 PM

Quote:

Originally Posted by remzibi

You really do not know difference between li-pol and li-ion battery ?

Yes, I know the difference without having to resort to Wikipedia. What does that have to do with the topic of this thread?

remzibi · Apr 6, 2013, 08:58 PM

OK

, calm down. I do not want offence anyone

.
Well, I know some about TPMs (as Trusted Platform Module) as well as about AES and DES algos , and sometime I like to play with some code, mostly for fun.

Quote:

Originally Posted by Intell

.. I rarely say this, but that is impossible...

Let say, I didn't know that is impossible , so probably was the reason I did it

.

Intell · Apr 6, 2013, 09:07 PM

Your post is lacking vivid details. I've come to the conclusion, that I assume is shared by others in this thread/forum, that you are lying. Based on what you may or may not know about AES encryption, you should at least be aware of the basic most constant; 256-bit cannot be cracked by one lone person such as yourself within any time span less than a decade.

Feb 24, 2013, 08:37 PM	#1
pcgo macrumors newbie Join Date: Feb 2013	Efi password lockout Hello a client brought me a macbook pro with a EFI PASSWORD on it, a newer macbook you can not reset by changing hardware config. The macbook hdd is clean and no apple shows up on boot. so my question is can i put the hdd in a mackbook of the same model, reformat and put back in efi locked macbook and bootup that way? I know apple has to flash efi pin away but i dont want to have to send this client to apple.
	0

Feb 24, 2013, 08:40 PM	#2
Intell macrumors G5 Join Date: Jan 2010 Location: Inside	Only Apple can remove that. __________________ Last edited by Intell; Yesterday at 11:50 AM.
	0

Feb 24, 2013, 08:40 PM	#3
marc11 macrumors 68000 Join Date: Mar 2011 Location: NY USA	The client doesn't know the EFI pin? My understanding is the EFI pin is in the bios so no amount of HDD swapping is going to bypass it. __________________ Various Apple Products
	0

Feb 24, 2013, 08:49 PM	#5
Intell macrumors G5 Join Date: Jan 2010 Location: Inside	You can't boot that machine at all. It's completely locked and only Apple can unlock it. __________________ Last edited by Intell; Yesterday at 11:50 AM.
	0

Apr 6, 2013, 08:16 PM	#18
Intell macrumors G5 Join Date: Jan 2010 Location: Inside	Authorization: To run the tool that removes the password, oh yes I have legitimate access to it, you must enter your Apple Tech username and password into the EFI reset tool. If you enter in the wrong username/password more than four times, the tool bricks the logicboard by blowing the security fuses on the board and in the EFI chip. If they blow, the whole logicboard must be replaced. There is no way around that lockout. No way to reset the EFI password without it. I also highly doubt you have the needed TPM access device. They're extremely expensive and Apple is very strict about them. Only giving them out to secure locations. It took my work place five months to get one. Had to sign lots of papers and legal documents. Their cool little devices that use Apple private key to access the TPM. That key is not extractable, reversible, or in any way obtainable. Much like the key Apple uses to sigh SHSH blobs for iOS devices. Without that key in the proper TPM device, it won't work. You won't even get to the stage where you enter your Apple Tech username and password. __________________ Last edited by Intell; Yesterday at 11:50 AM.
	0

Apr 6, 2013, 08:37 PM	#19
GGJstudios macrumors Westmere Join Date: May 2008	Based on the misinformation posted in other threads by the poster just before me, I'd say it's very likely they have no idea what they're talking about.
	0

Apr 6, 2013, 09:07 PM	#25
Intell macrumors G5 Join Date: Jan 2010 Location: Inside	Your post is lacking vivid details. I've come to the conclusion, that I assume is shared by others in this thread/forum, that you are lying. Based on what you may or may not know about AES encryption, you should at least be aware of the basic most constant; 256-bit cannot be cracked by one lone person such as yourself within any time span less than a decade. __________________ Last edited by Intell; Yesterday at 11:50 AM.
	0

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