The Best 7 Ways to Fix iOS 14 Auto Lock Not Working (in 2020)

The feature of Auto-lock on iPhone will put the device to sleep and lock the device after a short time to save the battery. However, many users claimed to have discovered that the iPhone Auto Lock not working after installing the latest version of iOS 14. If the Auto Lock stops working, the device screen will no longer sleep or get locked. Today we will discuss the issue of the iPhone Auto-lock not working and offer you some of the effective solutions to help you get rid of this issue.

1. Check If Auto-Lock Feature is Enabled

It's very obvious that your iPhone will not be automatically locked when Auto-lock feature is disabled. Thus you need to go to Settings to check wether the statue of this feature is enabled.

Step 1. Click on "Display & Brightness" and "Auto-Lock" when you open Settings app on your iOS device.

Step 2. Here you will see several time duration choices that you can choose to auto lock the device. Select one that suits you best and the iPhone screen will lock automatically after that time duration.

enable auto lock

Note: If you select the time duration as "Never", the iPhone will never get locked automatically.

2. Turn Off Low Power Mode

iPhone's Low Power Mode feature will affect the normal running of many other features including the Auto-lock function. Thus turning off Low Power Mode may also help to fix this issue.

Step 1. First you need to open your iPhone's Settings.

Step 2. Then select the Battery option in the drop down menu and click to enter.

Step 3. There will be an option for battery percentage and Low Battery Mode.

Step 4. You only need to click the switch button next the Low Battery Mode to make the button become white, and the Low Battery Mode will be turned off.

turn off low power mode

3. Force Restart the Device

To force restart an iPhone will sometimes fix most issues that you may have after an iOS 14 upgrade.

Step 1. Press and hold the power button until the message slider that "Slide to power off" appears on the screen. Slide the slider to the right.

Step 2. If the iPhone does not shut down properly, then press and hold the following button combination:

  • For iPhone 6S and Earlier Modes: Power button + Home button

  • For iPhone 7 and 7 Plus: Power button + volume down button

  • For iPhone 8 and Later Models: Power button + volume down button

Step 3. Continue to hold down the two buttons and do not release. After about 10 seconds, the Apple logo will appear on the screen, you can now release the 2 buttons now.

turn off and turn on iphone

4. Disable AssistiveTouch on iPhone

Not only the Low Battery Mode, the feature of AssistiveTouch could also prevent the Auto Lock and other feature from working normally sometimes if this feature is turned on. So why not turn off this feature to have a try?

Step 1. First, find the [Settings] function button on the Apple phone.

Step 2. Click the [Settings] function button to enter the setting interface of the Apple mobile phone. Then find the [General] function button.

Step 3. Click the [General] button in the setting interface to enter the common interface, and find the [Accessibility] button.

Step 4. Click the [Accessibility] button to enter the auxiliary function interface. Then simply turn off [Assistive Touch] function.

disable assistivetouch touch

5. Reset Password Lock Settings

We have seen most users who have the same issue said in the forum that reactivating the passcode lock settings on the iPhone can also be accessible to fix the Auto-lock not working issue. Here is how:

Step 1. Enter the Settings interface.

Step 2. Swipe down to click on "Touch ID and Password".

Step 4. Enter the lock screen password.

Step 5. Swipe down to hit "Turn Passcode Off".

Step 6. Now restart the device to turn on the Passcode settings.

reset password lock settings

6. Reset All Settings

Resettings all settings can also repair the Auto Lock issue. After that, the iPhone system will be reset to the default settings, the App data, photos, data, etc. will not be deleted and can still be used as usual.

Step 1. Open Settings app on iPhone.

Step 2. Click "General" option and locate "Reset".

Step 3. Select "Reset All Settings" and enter the passcode to confirm the settings.

Step 4. The device will reboot after confirming the settings.

reset all settings iphone

7. Fix iPhone ‘Auto-Lock’ Not Working without Data Loss

The ultimate solution that you can use if you don't want to suffer from losing all or part of the iPhone data. FoneGeek iOS System Recovery is a trusted repair tool that allows every users to repair their iPhone/iPad issues with the most simple procedures. And this program is reviewed by official and professional media sites, suck as PC World, PC Advisor, etc.


Step 1. Download, install and launch FoneGeek iOS System Recovery on your computer. 

connect ios device

Step 2. Then connect the device to computer and click on "Repair Operating System".

repiar operating system

Step 3. Your iPhone will be detected by the program. Click "Download" to download the firmware package.

download firmware

It will take nearly 10 minutes to complete the download process. The Auto-lock not working problem will go away after the repairing process. 



Actually, most tutorials are covered in this article to help users fix the issue of iPhone Auto Lock not working. Thanks a lot for going through this article and hope that these solutions will help you resolve it. And you are welcome to drop your comments below if you have any other issues that you are encountering or have any other better solutions.


By Joan J. Mims

Posted on May 05, 2019, 22:29:21

Joan J. Mims is interested in researching all tips about iPhone, iPad and Android. He loves to share useful ideas with all users.