Place laptop on a flat table. If it rocks diagonally or you can see/feel a bulge near the trackpad, battery is swollen .
You see a line, but the surface is still flush. Your finger does not catch on the edge. trackpad crack
: Most expensive [22]. For older models (pre-2016), Apple may no longer offer service [7]. Third-Party Repair Shops Place laptop on a flat table
A trackpad crack is a visible hairline fracture or spiderweb break in the glass or surface of a laptop trackpad (most commonly on , but also some high-end Windows laptops with glass trackpads). It usually appears without a dramatic drop or impact. trackpad crack