When using an iPhone, you can solve the problem of the screen jumping while charging by turning off the touch adjustment function. Here are the detailed steps:
Click general
Select Open phone Settings, select Tap General Options.
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click-to-touch
On the page, select the Click Touch option.
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Click touch adjustment
Select the touch adjustment option in the click page.
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Click the close button
Find the touch adjustment function and click the button on the right to turn it off.