What does it mean if the mouse on the screen of my MacBook moves on its own?
What does it mean if the mouse on the screen of my MacBook moves on its own?
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You do not say what exact Mac /model /year /size /retina /touchbar is this ?
A swollen battery can adversely affect the mouse.
See if you qualify here: https://support.apple.com/15-inch-macbook-pro-battery-recall
check the condition of
your battery, hold down the option key and click on the battery icon in
the menu bar. If the condition is anything other than Normal, take your
Mac to an Apple Store to get it replaced
Portables and Magic Trackpad: Jumpy or erratic trackpad operation
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"—
https://www.apple.com/retail/geniusbar/