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Текущая версия: Nick ,

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You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] but I think they only continue to sell it for Mac OS X upgrades since you need to have 10.6 installed at the bare minimum to upgrade the OS through the App Store. While 10.6 ishas been EOL for years and many applications no longerapplication/hardware support it, sohasn’t been there is no practical reason to use it unless you have a specialized use case for ityears, it does come in handy - legacy hardware and situations like this are why it still makes sense to keep around.
You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] but I think they only continue to sell it for Mac OS X upgrades since you need to have 10.6 installed at the bare minimum to upgrade the OS through the App Store. While 10.6 ishas been EOL for years and many applications no longerapplication/hardware support it, sohasn’t been there is no practical reason to use it unless you have a specialized use case for ityears, it does come in handy - legacy hardware and situations like this are why it still makes sense to keep around.
 
In order to boot from thisthe DVD, put it in the drive and press Option and select the DVD or just press C and the system will boot from DVDC. Both of these will work, so it's a matter of which one worksworks for you. Expect to sit for ~15-20~15-20+ minutes or more just to boot uperr on the installation DVDside of caution - this won’t be quick.
In order to boot from thisthe DVD, put it in the drive and press Option and select the DVD or just press C and the system will boot from DVDC. Both of these will work, so it's a matter of which one worksworks for you. Expect to sit for ~15-20~15-20+ minutes or more just to boot uperr on the installation DVDside of caution - this won’t be quick.
 
After it loadsOnce the DVD boots, go under Utilities and find the Password'''Password Reset utilityutility'''. This shouldwill allow you to clear the password on the systemit out.
After it loadsOnce the DVD boots, go under Utilities and find the Password'''Password Reset utilityutility'''. This shouldwill allow you to clear the password on the systemit out.
 
Generally speaking, if this isIf you have a HDP (Hard Disk Password), many companies just replace the drive and do not tryis typically discarded because it’s so difficult to resetrecover it. It can be done but the locked hard drive. Manyuse of encryption on most drives encrypt this data, which makes HDP removal impractical. You may be able to crack it impractical to even try. '''You can try and get it off of the drivecrack it, but this operation is very risky and couldyou may damage the firmware on the drive beyond repair.and permanently mess it up. Don’t try unless you don’t care about the data or you know EXACTLY what you are doing!'''
Generally speaking, if this isIf you have a HDP (Hard Disk Password), many companies just replace the drive and do not tryis typically discarded because it’s so difficult to resetrecover it. It can be done but the locked hard drive. Manyuse of encryption on most drives encrypt this data, which makes HDP removal impractical. You may be able to crack it impractical to even try. '''You can try and get it off of the drivecrack it, but this operation is very risky and couldyou may damage the firmware on the drive beyond repair.and permanently mess it up. Don’t try unless you don’t care about the data or you know EXACTLY what you are doing!'''
 
== 2017 Edit ==

Being
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update thisam providing more information. The old methods (Change the RAM and reset the PRAM or using install mediathat work on many old systems (pre-2011) do not work on 2011+ machines. It is coded intohardware. These store the password encrypted in the EFI ROM chip, sochip on the laptop and you need the master password from Apple to remove it. You need to take the systemthese systems to Apple to have the machine reset. The problem is you needreset AND provide a proof of purchase, which may be an issue. The TPM in these machinespurchase. These also have a TPM, but it was never used, so you don't need to worry aboutused and was dropped when the TPM interferingrMBP was released.

Being
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update thisam providing more information. The old methods (Change the RAM and reset the PRAM or using install mediathat work on many old systems (pre-2011) do not work on 2011+ machines. It is coded intohardware. These store the password encrypted in the EFI ROM chip, sochip on the laptop and you need the master password from Apple to remove it. You need to take the systemthese systems to Apple to have the machine reset. The problem is you needreset AND provide a proof of purchase, which may be an issue. The TPM in these machinespurchase. These also have a TPM, but it was never used, so you don't need to worry aboutused and was dropped when the TPM interferingrMBP was released.

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Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, andbut I think they only continue to sell it for legacy Mac hardware. AppleOS X upgrades since you need to have 10.6 installed at the bare minimum to upgrade the OS through the App Store. 10.6 is EOL and many applications no longer supports thissupport it, so do not expectthere is no practical reason to get any updates. They're sellinguse it as an upgrade pathunless you have a specialized use case for newer versions of OS Xit.
You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, andbut I think they only continue to sell it for legacy Mac hardware. AppleOS X upgrades since you need to have 10.6 installed at the bare minimum to upgrade the OS through the App Store. 10.6 is EOL and many applications no longer supports thissupport it, so do not expectthere is no practical reason to get any updates. They're sellinguse it as an upgrade pathunless you have a specialized use case for newer versions of OS Xit.
 
What you wantIn order to do to get it to load isboot from this DVD, put it in the drive and press Option and select the Option key,DVD or C. Eitherjust press C and the system will boot from DVD. Both of these should work. If you choosewill work, so it's a matter of which one works. Expect to use the Option key, you need to waitsit for it~15-20 minutes or more just to show in the boot devices. C loads it automatically. Think of it as a boot override inup the Mac world. Let this thing load. It will take a whileinstallation DVD.
What you wantIn order to do to get it to load isboot from this DVD, put it in the drive and press Option and select the Option key,DVD or C. Eitherjust press C and the system will boot from DVD. Both of these should work. If you choosewill work, so it's a matter of which one works. Expect to use the Option key, you need to waitsit for it~15-20 minutes or more just to show in the boot devices. C loads it automatically. Think of it as a boot override inup the Mac world. Let this thing load. It will take a whileinstallation DVD.
 
After it loads, you're going to want to go under Utilities and find the Password resetReset utility. This should allow you to do itclear the password on the system.
After it loads, you're going to want to go under Utilities and find the Password resetReset utility. This should allow you to do itclear the password on the system.
 
Generally speaking, if this is a HDP (Hard Disk Password), many companies just replace the drive and do not try to reset the locked hard drive. Many drives encrypt this data, which makes HDP removal impractical. You may be able to crack it and get it off of the drive, but this operation is very risky and could damage the drive beyond repair.
 
== 2017 Edit ==
 
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. The old methods (Change the RAM and reset the PRAM or using install media) do not work on 2011+ machines. It is coded into the EFI ROM chip, so you need to take the system to Apple to have the machine reset. The problem is you need a proof of purchase, which may be an issue. The TPM in these machines was never used, so you don't need to worry about the TPM interfering.

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Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, and for legacy Mac hardware. Apple no longer supports this, so do not expect to get any updates. They're selling it as an upgrade path for newer versions of OS X.
 
What you want to do to get it to load is put it in and press the Option key, or C. Either of these should work. If you choose to use the Option key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
After it loads, you're going to want to go under Utilities and find the Password reset utility. This should allow you to do it.
 
HardGenerally speaking, if this is a HDP (Hard Disk Passwords are encrypted andPassword), many vendors willcompanies just replace the drive and do not try to reset these. Their solution is a newthe locked hard disk. The reason fordrive. Many drives encrypt this is thedata, which makes HDP is encrypted, and replacing the drive is cheaper. If youremoval impractical. You may be able to crack it the riskand get it off of killing a drive withthe drive, but this operation is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything elsevery risky and could damage the drive beyond repair.
HardGenerally speaking, if this is a HDP (Hard Disk Passwords are encrypted andPassword), many vendors willcompanies just replace the drive and do not try to reset these. Their solution is a newthe locked hard disk. The reason fordrive. Many drives encrypt this is thedata, which makes HDP is encrypted, and replacing the drive is cheaper. If youremoval impractical. You may be able to crack it the riskand get it off of killing a drive withthe drive, but this operation is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything elsevery risky and could damage the drive beyond repair.
 
== 2017 Edit ==
 
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. The old methods (Change the RAM and reset the PRAM or using install media) do not work on 2011+ machines. It is coded into the EFI ROM chip, so you need to take the system to Apple to have the machine reset. The problem is you need a proof of purchase, which may be an issue. The TPM in these machines was never used, so you don't need to worry about the TPM interfering.

Статус:

open

Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells this for [http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, and for legacy Mac hardware. Apple no longer supports this, so do not expect to get any updates. They're selling it as an upgrade path for newer versions of OS X.
 
What you want to do to get it to load is put it in and press the Option key, or C. Either of these should work. If you choose to use the Option key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
After it loads, you're going to want to go under Utilities and find the Password reset utility. This should allow you to do it.
 
Hard Disk Passwords are encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. If you crack it the risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.
 
== 20142017 Edit ==
== 20142017 Edit ==
 
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this withThe old methods (Change the RAM trick anymore, and reset the solution proposed to the OP mayPRAM or using install media) do not work, either. Applework on 2011+ machines. It is coded into the only one who can remove it now.''' Yes, I knowEFI ROM chip, so you can shortneed to take the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't likesystem to talk bout howApple to execute this on a forums in general. Ifhave the machine hasreset. The problem is you need a TPM, itproof of purchase, which may double as a security chip, too.

If
be an issue. The TPM in these machines was never used, so you wantdon't need to shortworry about the ATMEL chip out on a 2011 Mac, you're on your ownTPM interfering.
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this withThe old methods (Change the RAM trick anymore, and reset the solution proposed to the OP mayPRAM or using install media) do not work, either. Applework on 2011+ machines. It is coded into the only one who can remove it now.''' Yes, I knowEFI ROM chip, so you can shortneed to take the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't likesystem to talk bout howApple to execute this on a forums in general. Ifhave the machine hasreset. The problem is you need a TPM, itproof of purchase, which may double as a security chip, too.

If
be an issue. The TPM in these machines was never used, so you wantdon't need to shortworry about the ATMEL chip out on a 2011 Mac, you're on your ownTPM interfering.

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open

Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells thesethis for 30.00 or[http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, and for legacy Mac hardware. Apple no longer supports this, so do not expect to this day. However, you may need to check eBay nowget any updates. They're selling it as an upgrade path for newer versions of OS X.
You can do this with a Snow Leopard DVD. Apple sells thesethis for 30.00 or[http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard|$20] as an upgrade path, and for legacy Mac hardware. Apple no longer supports this, so do not expect to this day. However, you may need to check eBay nowget any updates. They're selling it as an upgrade path for newer versions of OS X.
 
What you want to do to get it to load is put it in and press the Option key, or C. Either of these should work. If you choose to use the Option key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
After it loads, you're going to want to go under Utilities and find the Password reset utility. This should allow you to do it.
 
Hard Disk Passwords are encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. If you crack it the risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.
 
== 2014 Edit ==
 
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this with the RAM trick anymore, and the solution proposed to the OP may not work, either. Apple is the only one who can remove it now.''' Yes, I know you can short the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't like to talk bout how to execute this on a forums in general. If the machine has a TPM, it may double as a security chip, too.
 
If you want to short the ATMEL chip out on a 2011 Mac, you're on your own.

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Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells these for 30.00 or so to this day. However, you may need to check eBay now. I would not recommend a torrent just because you don't know what you're getting.
You can do this with a Snow Leopard DVD. Apple sells these for 30.00 or so to this day. However, you may need to check eBay now. I would not recommend a torrent just because you don't know what you're getting.
 
What you want to do to get it to load is put it in and press the Option key, or C. Either of these should work. If you choose to use the Option key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
After it loads, you're going to want to go under Utilities and find the Password reset utility. This should allow you to do it.
 
Hard Disk Passwords are often encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. HOWEVER, some vendors will help If you with ownership verification. It's crackable, but high risk at best. If you don't know whatcrack it the !&&* you're doing with EEPROM code, don't try. The risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.
Hard Disk Passwords are often encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. HOWEVER, some vendors will help If you with ownership verification. It's crackable, but high risk at best. If you don't know whatcrack it the !&&* you're doing with EEPROM code, don't try. The risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.
 
== 2014 Edit ==
Being
Being
I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this with the RAM trick anymore, and the solution proposed to the OP may not work, either. Apple is the only one who can remove it now.''' Yes, I know you can short the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't like to talk bout how to execute this on a forums in general. If the machine has a TPM, it may double as a security chip, too.
Being
Being
I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this with the RAM trick anymore, and the solution proposed to the OP may not work, either. Apple is the only one who can remove it now.''' Yes, I know you can short the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't like to talk bout how to execute this on a forums in general. If the machine has a TPM, it may double as a security chip, too.
If you want to short the ATMEL chip out on a 2011 Mac, you're on your own.

Статус:

open

Отредактировано: Nick ,

Текст:

You can do this with a Snow Leopard DVD. Apple sells these for 30.00 or so to this day. However, you may need to check eBay now. I would not recommend a torrent just because you don't know what you're getting.
 
What you want to do to get it to load is put it in and press the Option key, or C. Either of these should work. If you choose to use the Option key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
After it loads, you're going to want to go under Utilities and find the Password reset utility. This should allow you to do it.
 
Hard Disk Passwords are often encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. HOWEVER, some vendors will help you with ownership verification. It's crackable, but high risk at best. If you don't know what the hell!&&* you're doing with EEPROM code, don't try. The risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.

== 2014 Edit ==
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this with the RAM trick anymore, and the solution proposed to the OP may not work, either. Apple is the only one who can remove it now.''' Yes, I know you can short the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't like to talk bout how to execute this on a forums in general. If the machine has a TPM, it may double as a security chip, too.
If you want to short the ATMEL chip out on a 2011 Mac, you're on your own.
Hard Disk Passwords are often encrypted and many vendors will not reset these. Their solution is a new hard disk. The reason for this is the HDP is encrypted, and replacing the drive is cheaper. HOWEVER, some vendors will help you with ownership verification. It's crackable, but high risk at best. If you don't know what the hell!&&* you're doing with EEPROM code, don't try. The risk of killing a drive with this is VERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it can do anything else.

== 2014 Edit ==
Being I changed this answer to not read as if I wrote it like I don't care about the quality, I need to update this. '''Mac computers have used ATMEL chips since 2011 for this password. You can't clear this with the RAM trick anymore, and the solution proposed to the OP may not work, either. Apple is the only one who can remove it now.''' Yes, I know you can short the ATMEL chip if you know the pinout and other security isn't there like a security chip like the Thinkpads have, but I don't like to talk bout how to execute this on a forums in general. If the machine has a TPM, it may double as a security chip, too.
If you want to short the ATMEL chip out on a 2011 Mac, you're on your own.

Статус:

open

Отредактировано: Nick ,

Текст:

You can getdo this with a Snow lepoard disk from the storeLeopard DVD. Apple sells these for 30.00 or so to this day. However, you may need to check eBay now. I would not recommend a torrent just because you don't know what you're getting.
You can getdo this with a Snow lepoard disk from the storeLeopard DVD. Apple sells these for 30.00 or so to this day. However, you may need to check eBay now. I would not recommend a torrent just because you don't know what you're getting.
 
Put that discWhat you want to do to get it to load is put it in the drive and powerpress the laptop andOption key, or C. Either of these should work. If you choose to use the disc will goOption key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
Put that discWhat you want to do to get it to load is put it in the drive and powerpress the laptop andOption key, or C. Either of these should work. If you choose to use the disc will goOption key, you need to wait for it to show in the boot devices. C loads it automatically. Think of it as a boot override in the Mac world. Let this thing load. It will take a while.
 
afterAfter it loads, you're going to want to go under Utilities and find the bong, hold the option key and select Mac OSX install DVDPassword reset utility. This should allow you to do it.
afterAfter it loads, you're going to want to go under Utilities and find the bong, hold the option key and select Mac OSX install DVDPassword reset utility. This should allow you to do it.
 
Let it boot

Under utilities, find firmware password
Hard Disk Passwords are often encrypted and many vendors will not reset utility and see if it wantsthese. Their solution is a old password to do it, if so, you will need another option

if it's
new hard disk. The reason for this is the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM onHDP is encrypted, and replacing the drive and usually cannot be removed or cracked due to the level of encryption, tough it can be inis cheaper. HOWEVER, some cases ifvendors will help you usewith ownership verification. It's crackable, but high risk at best. If you don't know what the right method, which varies based on the hardware, OS and HDD brand, the issuehell you're doing with EEPROM code, don't try. The risk of killing a drive with this is i am only fimilar with the PC methods to crackVERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it workscan do anything else.
Let it boot

Under utilities, find firmware password
Hard Disk Passwords are often encrypted and many vendors will not reset utility and see if it wantsthese. Their solution is a old password to do it, if so, you will need another option

if it's
new hard disk. The reason for this is the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM onHDP is encrypted, and replacing the drive and usually cannot be removed or cracked due to the level of encryption, tough it can be inis cheaper. HOWEVER, some cases ifvendors will help you usewith ownership verification. It's crackable, but high risk at best. If you don't know what the right method, which varies based on the hardware, OS and HDD brand, the issuehell you're doing with EEPROM code, don't try. The risk of killing a drive with this is i am only fimilar with the PC methods to crackVERY real. It may even cost you your data. You can't bypass these if it's there. It will '''always ask''' before it workscan do anything else.

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Отредактировано: Nick ,

Текст:

You can get a Snow lepoard disk from the store for 30.00
 
Put that disc in the drive and power the laptop and the disc will go in
 
after the bong, hold the option key and select Mac OSX install DVD
 
Let it boot
 
Under utilities, find firmware password reset utility and see if it wants a old password to do it, if so, you will need another option
 
if it's the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM on the drive and usually cannot be removed or cracked due to the level of encryptionencryption, tough it can be in some cases if you use the right method, which varies based on the hardware, OS and HDD brand, the issue is i am only fimilar with the PC methods to crack if it works
if it's the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM on the drive and usually cannot be removed or cracked due to the level of encryptionencryption, tough it can be in some cases if you use the right method, which varies based on the hardware, OS and HDD brand, the issue is i am only fimilar with the PC methods to crack if it works

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open

Отредактировано: Nick ,

Текст:

You can get a Snow lepoard disk from the store for 30.00
 
Put that disc in the drive and power the laptop and the disc will go in
 
after the bong, hold the option key and select Mac OSX install DVD
 
Let it boot
 
Under utilities, find firmware password reset utility and see if it wants a old password to do it, if so, you will need another option
 
if it's the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM on the drive and usually cannot be removed or cracked due to the level of encryption
if it's the HDD at fault, you will need to change it most likely, as it's almost always encrypted in the ROM on the drive and usually cannot be removed or cracked due to the level of encryption

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open

Отредактировано: Nick ,

Текст:

You can get a Snow lepoard disk from the store for 30.00
 
Put that disc in the drive and power the laptop and the disc will go in
 
after the bong, hold the option key and select Mac OSX install DVD
 
Let it boot
 
Under utilities, find firmware password reset utility and see if it wants a old password to do it, if so, you will need another option
 
if it's the HDD at fault, you will need to change it most likelylikely, as it's almost always encrypted and usually cannot be removed or cracked due to the level of encryption
if it's the HDD at fault, you will need to change it most likelylikely, as it's almost always encrypted and usually cannot be removed or cracked due to the level of encryption

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Оригинальный сообщение: Nick ,

Текст:

You can get a Snow lepoard disk from the store for 30.00

Put that disc in the drive and power the laptop and the disc will go in

after the bong, hold the option key and select Mac OSX install DVD

Let it boot

Under utilities, find firmware password reset utility and see if it wants a old password to do it, if so, you will need another option

if it's the HDD at fault, you will need to change it most likely

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