The Find My app combines Find My iPhone and Find My Friends into a single app for iOS 13, iPadOS, and macOS Catalina. If you need help finding it, use Search on your iPhone, iPad, or iPod touch, or use Spotlight on your Mac. You can also share locations or find missing devices on iCloud.com.

The Lost Mode feature of Find My Mac will remotely lock the Mac with a firmware password for one-time use. The user's Mac receives the lock instruction from iCloud, restarts, and asks for the system lock PIN code that they set up. After entering the passcode the Mac starts up from the designated startup disk and disables the passcode. I locked my MacBook using Find My iPhone and now when attempting to start using it again, I cannot type my PIN into the unlock section. Nothing happens. I can't even click on sleep, restart, shut d. Ping a computer using Network Utility on Mac. Use Network Utility to see if your computer can communicate with a computer or other device at a specific network address. This type of test is called pinging the other device. Pinging can help you figure out if a communication problem is caused by your computer, the connection, or the remote device.

If you don't have iOS 13, iPadOS, macOS Catalina, or watchOS 6, set up and use Find My iPhone and Find My Friends instead of Find My, or log in to iCloud.com.

With Find My, you can locate and protect your Mac if it's ever lost or stolen. You need to set up Find My Mac before it goes missing. To turn it on, simply choose Apple menu  > System Preferences, click Apple ID, then click iCloud. If you believe that your Mac was stolen, contact your local law enforcement.

Use Find My to locate your computer

If you set up Find My Mac before your Mac was lost or stolen, you can use it to locate your Mac on a map, or play a sound to help you find it. You can also use it to remotely lock or erase your Mac. To use Find My, sign in to iCloud.com on another computer or open the Find My app for iPhone, iPad, or iPod touch.

Locate your Mac on a map

Open the Find My app and select your Mac from the list of devices to view its location on a map and get directions.

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Play a sound

If your Mac is nearby, you can have it play a sound to help you or someone nearby find it.

Lock your Mac

You can use Find My to mark your computer as lost, which remotely locks it with a passcode. You can also display a custom message on its screen.

Erase your Mac

You can use Find My to remotely erase all your personal information from your Mac.

What if my Mac is shut down or offline?

If your Mac is turned off or offline, you can still use Find My to request a notification when it’s located, or lock or erase it remotely. The next time your Mac is online, the actions take effect. If you remove your Mac from Find My when it's offline, your requests are canceled.

How do I unlock my Mac?

After you locate your Mac, you can unlock it with your passcode on iCloud.com. Make sure to use the passcode that you created when you locked it with Find My, not your device passcode.

Here's how to see the passcode that you used to lock your Mac:

1. Sign in to icloud.com/find.
2. Select your Mac from the Devices menu.
3. Select Unlock. After you follow the steps to verify your identity, you'll see the passcode that you need to unlock your Mac.

You can look up your passcode for a limited time. If you forget your passcode or can't verify your identity to see it, take your Mac to an Apple Authorized Service Provider along with your proof of purchase.

If you can't find your Mac

Find My Mac is the only Apple service that can help track or locate a lost Mac. If you didn’t set up Find My Mac before your Mac was lost, or you can’t locate it, these steps might help you protect your data:

1. Change your Apple ID password to prevent anyone from accessing your iCloud data or using other services (such as iMessage or iTunes) from your Mac.
2. Change your passwords for other accounts you use with your Mac, including email, banking, and social sites like Facebook or Twitter.
3. Report your lost or stolen Mac to local law enforcement. They might request the serial number of your computer. You can find this information on the original box or receipt you received when you purchased your Mac.

macOS provides multiple methods to protect the data on a Mac: a user account password, encryption via FileVault, and optional low-level security measure that prevents starting up from storage devices other than the selected startup disk. That's known as the firmware password or EFI (Extensible Firmware Interface) lock, which will also block the user's ability to use all startup key combinations, except the NVRAM or PRAM reset combinations. This command (Option + Command + P + R), however, will initiate the machine from macOS Recovery instead.

The Lost Mode feature of Find My Mac will remotely lock the Mac with a firmware password for one-time use. The user's Mac receives the lock instruction from iCloud, restarts, and asks for the system lock PIN code that they set up. After entering the passcode the Mac starts up from the designated startup disk and disables the passcode.

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A firmware password is not the same as the administrator password or login password. It's a separate password that appears immediately after boot and must be entered into the system lock screen, which appears as a lock symbol on either a black or a gray background.

Firmware Passcode Security

Low-level passwords are quite secure, which also means there is potentially a headache if the password is forgotten. If you or any of your users can't remember the firmware password or passcode, know that Apple doesn’t allow for any workarounds, but instead recommends scheduling a service appointment with an Apple Store or Apple Authorized Service Provider. The process requires the original receipt or invoice as proof of purchase.

Earlier versions of macOS required manual installation of the firmware but, starting in 2015, Apple began bundling EFI updates with the macOS updates in order to deliver security patches to all users. But as security firm Duo Labs discovered in late 2017, some Macs aren't getting the right firmware, which makes them vulnerable to hackers. They recommend checking the firmware version and updating if needed.

Firmware Passcode Location

On Intel-based Macs shipped before 2011, the firmware password was stored in the PRAM and read by the system EFI firmware before other PRAM variables. That lead to a serious security issue, allowing the firmware to be revealed in a native macOS app and weakening the enhanced security Apple had hoped to introduce with the addition of the firmware password.

In 2011, however, Apple added an important change to the system: the firmware password was moved to a separate programmable controller from Atmel. This component contains lockable flash memory to store the password and requires special programming with identifier numbers for both the Mac's motherboard and the Atmel chip to access and reset it.

Since the controller is an independent component, the only way to bypass it is to manually remove it from the motherboard, but this requires highly precise reflow soldering tools and techniques.

Bypassing the Mac Firmware Password on MacBooks With Upgradeable RAM

This hardware hack works on both Intel- and Motorola-based MacBooks and requires users to remove the RAM and reinstall it. You can check our guide on how to remove the RAM on MacBooks for further reading.

1. Shut down your computer and remove the battery.
2. Locate your RAM, remove one of the RAM modules and put it aside.
3. Put the battery in, and boot your computer while holding the Command + Option + P + R keys to reset the parameter RAM.
4. Wait for the chime to sound three times.
5. Release the keys and shut down the computer.
6. Remove the battery again, and reinsert the RAM module.
7. Put the battery back in.
8. Boot up your Mac, and you should not see the firmware lock again.

Disable the Password With Firmware Password Utility

1. Restart your Mac while holding down the Command + R keys to enter Recovery Mode.
2. When the Utilities screen appears, go the Utilities menu bar, and select “Firmware Password Utility”.
3. Choose to turn the Firmware Password off.

If none of the above methods worked, there are still two more options to try: either have Apple do it for you, so long as you have the original receipt or invoice, or alternatively use any of the EFI lock bypass hardware kits available for sale on various sites. In using one of these EFI lock hardware bypass methods you’ll almost certainly void your warranty, so it is down to you whether you want to risk the procedure.

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