iPhone is disabled connect to iTunes

If you end up having to use a computer and you do not have one, borrow one from a friend, or go to an Apple Retail Store or Apple Authorized Service Provider. You can also use a PC with iTunes.

The support article about the restore screen contains the instructions you need to reset the device in this situation: If the Restore screen appears on your iPhone, iPad, or iPod touch - Apple Support

Use a friend's one or a store's display model.

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