If you find that your iPhone X can't charge after connecting to your computer's USB port, it may be because the device is locked. Please follow these steps to unlock:
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1. Unlock your iPhone X and connect it to your computer's USB port.
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2. When the dialog box \"Trust this computer\" is displayed on the iPhone, select Trust.
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3. If iTunes is open, stop and close it. Open iTunes again. Now your iPhone X should be recognized and charged by your computer.
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If the above methods do not work, you can try to unplug the USB cable or try to replace another USB cable to connect, or try to replace another computer to connect again.
one
Open the \"Settings\" on the mobile phone to enter the Settings screen.
two
Scroll down, find \"Face ID and Password\" and tap in.
three
Slide the interface to the bottom, turn on the switch button next to \"USB Accessories\
1. Unlock the device.
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2. If the device still does not recognize the USB accessory after unlocking, disconnect the device from the accessory first, then unlock the device and reconnect the accessory.
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Normally, an iPhone or iPad charges as usual when connected to a USB power adapter.
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3. Allow your iOS device to always access USB accessories: In iPhone Settings, go to Touch ID and Password or Face ID and Password, then open USB Accessories under Allow Access while Locked