A cracked screen comes in two flavors. There's the kind where only the glass broke, and the kind where the glass broke and took the display with it.
From across the kitchen they look the same. Spiderweb, sad face, a quiet "it still works though." I hear that line a lot in Escondido, usually from someone who has lived with the crack since summer and has gotten very good at reading texts through it.
Here's how to tell which flavor you've got.
First, what's actually in there
Your screen isn't one piece. On top is the cover glass, the part your thumb touches. Under it sits the display that makes the picture, plus a touch layer that figures out where your finger is. On most phones made in the last several years those layers are bonded together into one unit.
That matters for two reasons. The crack you see is in the glass, but the impact that caused it went straight through to everything underneath. And because the layers are fused, the repair is usually the whole screen unit anyway. So the real question isn't which part you're paying for. It's how fast you need to deal with it.
1. Black spots that look like spilled ink
A dark blot near the crack, sometimes with a purple or green edge, that stays put when you switch apps. That's the display itself: pixels that stopped lighting up. On OLED screens, which most newer iPhones, Pixels and Galaxys use, those spots like to spread. Slowly some weeks, fast others.
Glass alone doesn't do this. Ink spot means the display is hurt.
2. Lines across the picture
Thin vertical or horizontal lines in green, pink or white, sometimes a whole rainbow. They might only show up when the phone is warm, or when you squeeze it a little. That points to damage in the display layer or the connection behind it.
A phone riding on the dash on an inland Escondido afternoon gets plenty warm, so if your lines mostly appear in the car, the heat is just bringing out a problem that was already there. Not the car's fault. Okay, a little the car's fault.
3. Touch that skips spots, or taps on its own
Open a notes app and drag one long, slow line from corner to corner. If the line breaks, or one strip of the keyboard refuses to type, the touch layer took a hit.
The opposite counts too. Apps opening by themselves, the keyboard typing a love letter to nobody. I wrote about ghost touch last week, and a crack is one of the usual suspects.
4. Flicker, dimming or a green tint
The whole screen pulses, one area goes dim, or everything turns faintly green at low brightness. Before you blame the crack, restart the phone and switch off auto-brightness for a minute. If the flicker survives both, it's hardware.
5. Black screen, but the phone is clearly alive
It rings. It buzzes. Your voice assistant answers you. The screen stays black. That's the display or its cable giving up while the rest of the phone carries on like nothing happened.
This is the one that makes backups tricky, because you can't see what you're tapping. Which brings me to the part people skip.
None of the five? Lucky you, sort of
If the picture is clean under the crack and touch works edge to edge, it's probably just the glass. Good news. Still not a "leave it forever" situation:
- Cracks grow. Every bump, pocket squeeze and hot-to-cold swing helps them along.
- Broken glass gives dust, sweat and moisture a path inside. Once the front is cracked, I wouldn't count on any water resistance.
- Tiny glass flakes along the crack can nick a fingertip. Ask anyone who scrolls with their thumb.
- A cracked corner turns the next small drop, one that wouldn't have mattered before, into an ink spot.
Also make sure it isn't just the screen protector. Peel up a corner. Sometimes the "crack" comes right off with the protector. Sometimes it doesn't. Very different faces.
What to do today
Back it up first, while you can still see and touch the whole screen. iCloud or Google, whichever you use, and check that your photos actually finished syncing instead of trusting the little spinning icon. A phone with an ink spot can go fully dark without much warning, and that's a bad day to discover the last backup was in March.
Then cover the crack. A cheap screen protector or a strip of clear tape keeps the glass where it belongs and slows the spread. Bandage, not cure, but it buys you time.
Keep it out of the heat while you wait. A sunny window ledge, or the dash on the drive home from Kit Carson Park, isn't doing a damaged display any favors.
And skip the internet tricks. Toothpaste doesn't fill cracks in glass, and pressing on an ink spot won't push dead pixels back to life. It mostly makes the spot bigger.
Where I come in
Replacing a screen means taking it off, so while I'm in there I get a look at the frame, the connectors and the battery. A drop hard enough to crack a screen sometimes bends something else too, and I'd rather mention it in your driveway than have you find out next month.
I come to you anywhere in Escondido, plus Carlsbad, Oceanside, Vista and San Marcos. Driveway, office parking lot, the bench outside wherever you happen to be. Tell me the model and which of the five signs you're seeing.