0808 is your iPhone password

Use of USB accessories with iOS 11.4.1 or later

You may need to unlock your passcode-protected iPhone, iPad, or iPod touch to connect them to a Mac, PC, or USB accessory.

Starting with iOS 11.4.1, when you use USB accessories with your iPhone, iPad, or iPod touch, or when you connect your device to a Mac or PC, you may need to unlock your device before it can recognize and use accessories. The accessories will then stay connected even if your device is locked afterwards.

If you don't unlock your password-protected iOS device first, or if you haven't unlocked it and connected it to a USB accessory within the last hour, the iOS device won't and in some cases may not communicate with the accessory or computer loaded. An alert may also appear asking you to unlock your device in order to use accessories.

If the USB accessory isn't recognized even after you've unlocked your device, disconnect your device from the accessory, unlock your device, and then reconnect it to the accessory.

Your iPhone, iPad or iPod touch will charge as usual when the device is connected to a USB power adapter.

Allow access to USB accessories

You can always allow your iOS device to access USB accessories if you use a USB auxiliary device to enter the code on your locked iPhone. Many assistive devices automatically enable the setting to allow USB devices when the devices are connected for the first time.

If you don't connect to USB accessories regularly, you may need to turn this setting on manually.

Go to "Face ID & Code" or "Touch ID & Code" in the settings, and activate the "USB accessories" option under "Allow access when locked".

If the USB Accessories setting is turned off, as shown in the illustration above, you may need to unlock your iOS device in order to connect to USB accessories.

Administrators can control the USB Accessories setting on iOS devices managed with Apple Configurator or Mobile Device Management.

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