Enter Your System lock PIN code to Unlock this Mac That Is The Problem with It, Any Way To Fix It? I Try So Many Times Looking Who Can Help Out With This Situation Which Is A Headache

The Mac is locked and has it say you need a code to open, so if you know the person who gift you the Mac ask for the code if no the only remedy is to re-load the system but you will need the the copy of the O.S.

Problem: Your Mac got locked via iCloud and on boot displays "Enter your system lock PIN code to unlock this Mac." It also sets an unknown password on the firmware so you can't boot from a disc. And you don't know the PIN code for a variety of reasons (not my business).


Solution: Mount the locked drive on another machine, find the PIN, re-install the locked drive into the original Mac, enter the PIN, resume your business.

Tutorial:
*I'm going to post the steps I did in my case and suggest steps you might take if your case varies.

Things Needed:
1. Alternate machine with space to mount an additional drive. (works on Mac or PC*)
*If you're using a PC, you'll need to download and install Mac Drive to be able to read the contents from a Windows environment.
2. You might need a SATA to USB adapter if you have a laptop without room for an additional drive.
3. Screw driver to disassemble the Mac.

Step 1: Remove the locked hard drive from your Mac.
You can find detailed guides for your specific machine at http://www.ifixit.com/Device/Mac

Step 2: Install the drive into your alternate machine. But make sure you do *not* boot from it. Boot from your regular drive.
If you do not have an alternate machine, feel free to ask a tech buddy of yours to lend you their machine.

Step 3: Once booted into the alternate system, locate your locked drive.
In my case it was drive D: on Windows. Now browse to \Users\username\Library\Application Support\iCloud


Step 4: In the folder "iCloud" find a file named with a bunch of numbers: ##########.lock In my case it was: 1138515150.lock


Step 5: I'd suggest that you take a picture of this file name for accurate reference. But you can also just write it down.

Step 6: Once you got the number, power down the machine and remove the locked drive.

Step 7: Install the locked drive back into the original locked Mac.
Follow your iFixit guide from Step 1 in reverse to put the drive back.
*It is important that you put it back in the machine where it was originally locked* so that the motherboard firmware will be unlocked in the next step.

Step 8: Boot up the locked Mac and referencing the number you recorded, you can start trying 4 numbers at a time for the PIN.
Try the first 4, then the second 4, and so on..
For example: 1138, 1385, 3851, 8515, 5151, 1515, 5150.
In my case the PIN was the second to last 4 digits: 1515
If you typed in more than 10 combinations, then it says that you are locked out for a minute. Just restart the machine and continue entering the combinations from where you left off.

Once you enter the right PIN, the Mac will instantly reboot proceeding to where you were at when the lockout occurred. It will also remove the firmware password.

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Sorry its a long list , but have included everything.Just pick out what you need... The default security code for Nokia is 12345.
SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it you need the PUK code...
Pin Unlock Code (PUK)
If you miss keyed (or forget) your SIM PIN code, and enter the wrong one 3-5 times in a row, the sim will lock up, and you'll need to enter the unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don't try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled. The PUK code was printed on the plastic card that your SIM card was attached to.
Phone Security Code:
This locks the handset, as opposed to the sim card. You can also set some handsets to only accept a "new" sim if the phone security code is entered.
Master Reset Code
Sometimes known as the Master Code, this allows you to unlock a handset if you have entered the Security
Code wrongly too many times.
Which is the one that you want?

Pin Unlock Code (PUK)
If you miss key (or forget) your SIM pin code, and enter the wrong one 3-5 times in a row, the SIM will lock up, and you’ll need to enter the PUK unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.

The next solution is a repair shop. The phone will have to be connected directly to a PC, using a software device 'Box'



"Old age is not so bad when you consider the alternatives."

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss key (or forget) your SIM pin code, and enter the wrong one 3-5 times in a row, the SIM will lock up, and you’ll need to enter the PUK unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.
Phone Security Code:
The default security code for Nokia is 12345
This locks the handset, as opposed to the sim card. You can also set some handsets to only accept a “new” sim if the phone security code is entered. To reset it, you need the Master code code:
Master Reset Code
Sometimes known as the Master Code, this allows you to unlock a handset if you have entered the Security Code wrongly too many times.
Which is the one that you want?



"Atheism is a non-prophet organization."

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss keyed (or forget) your SIM PIN code, and enter the wrong one 3-5 times in a row, the sim will lock up, and you’ll need to enter the unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss keyed (or forget) your SIM PIN code, and enter the wrong one 3-5 times in a row, the sim will lock up, and you’ll need to enter the unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.

give me IMEI no
i will u unlock code

hello there,

please help me to unlock or to remove code in my N70 .
here's IMEI 351862012602254.