A cracked screen is one of the most common reasons people bring a phone in, and one of the most misunderstood. The crack you see on top isn't always the whole story — here's how to actually read what's going on underneath, and what it means for your repair.
Start with a simple visual check
Look closely at the pattern of the damage. A spiderweb of fine cracks radiating from one impact point is usually just the outer glass giving way — the layer that takes the physical hit. If the display underneath is still showing colours correctly, with no black patches, coloured lines, or flickering, that's a good sign the actual screen technology (the part that produces the image) is still healthy.
Black blotches, coloured vertical or horizontal lines, flickering, or areas where the picture looks warped usually point to damage in the display panel itself — the LCD or OLED layer that sits beneath the glass.
Test the touch response, not just the picture
Run your finger slowly across the entire screen, corner to corner. Open an app and try scrolling and tapping in every area, including right up to the edges. A "dead zone" — a patch that doesn't respond to touch even though the picture looks fine there — usually means the digitiser (the touch-sensing layer) has been damaged, even if the glass above it looks only lightly cracked.
Why "just fix the glass" often isn't an option anymore
On most phones made in the last several years — including the iPhone X and later, and most recent Samsung Galaxy models — the outer glass, the touch layer, and the display panel are fused together into a single sealed unit at the factory. They can't be safely separated and replaced individually. So even if your crack looks like "just the glass," the repair itself usually means replacing the whole screen assembly as one piece.
This isn't a repair shop trying to sell you more than you need — it's simply how the device is built. The upside is that you don't need to worry about paying for a "glass repair" now and a "display repair" later if a hidden problem shows up. One replacement covers both.
When it might not be the phone at all
If you have a screen protector or a case with a raised edge, check underneath it first. Sometimes what looks like a crack in the display is actually damage to the protector itself, and the phone underneath is completely fine.
Related: iPhone screen replacement cost in Kampala and how to choose a screen protector.
Not sure what's wrong with your device?
Bring it in for a free look, or book online and we'll confirm the price after diagnosis.