Since the introduction of Face ID to the iPhone X and later models, this new unlocking technology has gained lots of attention. Some wonder if Face ID is safe enough and will Face ID work with eyes closed. Some worry whether their iPhones may be unlocked with a picture. This article will introduce Face ID and answer these questions.

Part 1. What Is Face ID and How Does It Work

Face ID is Apple's facial recognition system that helps you easily unlock your iPhone, open certain apps, and make payments by looking at your iPhone. Users don't need to enter passwords. It is designed for security and ease of use.

Apple utilizes the TrueDepth Camera System to capture a 3D depth map and an infrared image, enabling accurate facial recognition. This system enables Face ID to function in both bright light and low light, as well as in total darkness. Face ID also adapts to changes in your appearance in case you wear glasses/masks or have some makeup.

Part 2. Does Face ID Work with Eyes Closed

One of the most frequently asked questions about Face ID is: does face ID work with eyes closed? Here, we tell you that it depends on the situation.

Face ID has some smart features, such as Attention-Aware. The Attention-Aware enables Face ID to detect whether you are looking at the screen before unlocking. Face ID will check if your face is visible and your eyes are open and looking at the screen. If your eyes are closed, Face ID won't work.

If you want to change this, go to Settings to turn off Require Attention for Face ID. After turning this off, Face ID works again, even with your eyes closed.

Part 3. How to Unlock iPhone Face ID While Sleeping

As we have discussed in Part 2, if you have Require Attention for Face ID on, you can't unlock iPhone Face ID with eyes closed. However, there are times when you need to unlock someone else's iPhone (e.g., your child/parents) while s/he forgets the passcode. This part provides you with three ways to unlock iPhone Face ID while sleeping.

Unlock iPhone Face ID While Sleeping with a Few Clicks

Apeaksoft iOS Unlocker is a good choice for you to unlock iPhone Face ID while sleeping. It can wipe your iPhone passcode so that you can bypass both the passcode and the Face ID. It only requires a few clicks, and the whole process is fast and simple.

However, please note that while this software can erase the lock screen passcode, it will also erase all the data on your iPhone. Also, after erasing the passcode, your iPhone will automatically be updated to the latest iOS version.

Step 1. Download and install Apeaksoft iOS Unlocker for free. Launch the software.

Step 2. Connect your iPhone to your computer via a USB cable. Make sure that your iPhone is connected to the computer all the time.

Step 3. At the main interface, choose Wipe Passcode mode. Then, you will be presented with your device information. Confirm the information, and click on the Start button.

Step 4. Then, the software will start downloading the firmware package automatically. It may take some time, please wait for a while.

Step 5. After the firmware has been downloaded, click the Unlock button to remove the screen password. Then, enter 0000 to confirm the erasing.

Apeaksoft iOS Unlocker can also help you unlock your iPhone without the passcode or Face ID when you forget the right password, and somehow the Face ID fails to recognize your face.

Unlock iPhone Face ID While Sleeping with iTunes

iTunes can also unlock iPhone Face ID while sleeping. It can factory reset your iPhone, removing all the passcodes, including Face ID. Remember to backup your iPhone before using this method if you have important information stored on your iPhone.

Step 1. Launch iTunes on your computer. Connect your iPhone to your computer.

Step 2. Click the iPhone button on the top left of the main interface.

Step 3. Select Summary on the left bar. Then, in the right area, click on Restore iPhone.

Step 4. Follow all the prompts shown on the screen to get your iPhone back to the factory reset.

Unlock iPhone Face ID While Sleeping with iCloud

Almost all of the Apple users use iCloud to store their information. Many people consider iCloud as a useful backup tool. However, some people may not know iCloud can also restore iPhones to factory settings, just like iTunes. With iCloud, you are also able to unlock iPhone Face ID while sleeping. Just see the following guidance.

Step 1. Visit iCloud.com. Sign in with your Apple account.

Step 2. Click on Find iPhone on the home page.

Step 3. Find and select the locked iPhone. Choose Erase iPhone > Erase.

Step 4. Enter the Apple ID password. You may be required to authenticate for a second time to verify your identification.

Step 5. Select Trust when asked if trust this browser. Click on Next > Done to start the factory reset.

Part 4. Can You Unlock Face ID with a Picture

Some of you may also wonder whether you can unlock Face ID with a picture of you. The answer is – No.

Apple's Face ID uses 3D facial mapping to create a depth map of your face. The two-dimensional picture can't fool Face ID, as it can't be detected by the TrueDepth Camera System. A photo, even a high-quality one, lacks the 3D depth needed to trick the system.

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