The checklist
- Picture: open a plain white page, then a black one. Look for lines, spots, a dark corner or a bruise-coloured patch.
- Touch: drag an app icon slowly around all four edges. It should never let go.
- Face ID: lock and unlock a couple of times.
- Calls: make a short call. The screen should go dark at your ear and come back after.
- The edges: look along the frame for a gap between screen and body.
- Back up: if anything above failed, back up today.
What your results mean
- All six fine but the glass is cracked → you may only need the front glass.
- Lines, spots or a patch → the display is damaged; it usually spreads.
- Touch fails in a strip → the touch layer is damaged.
- A gap at the edge → check the battery before the screen.
A cracked screen is sharp. Put clear tape over it until it's repaired.
Still not sure what it is?
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