You may have turned on the screen reading function by mistake, you can turn it off in the following ways:
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1. Long press the power button. In the shutdown and restart interface, keep the two fingers not too far apart and do not move for a long time. Hold the screen for more than 3 seconds to exit the TalkBack mode\/screen reading.
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2. Press and hold the Volume Up button for about 3 seconds to exit TalkBack mode\/screen reading.
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3. In TalkBack mode, both fingers are required to slide the screen at the same time. Click to select the target. After the target is selected, a green box will appear. Double-click anywhere on the screen to activate the target.