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01A cracked protector means it worked
Should you replace a cracked screen protector? Yes, and soon. It absorbed an impact that would otherwise have hit your display, but that spot is now weaker, and a broken sheet of glass over your screen brings its own problems.
Tempered glass protectors are made to fail first. The glass is cheap and replaceable. Your phone's display isn't: a screen repair on a recent flagship can cost many times the price of a protector. So a crack is the protector earning its keep, not a sign that you bought a bad one.
The catch is that the job is now half done. Cracked glass spreads force differently, chips can fall away to leave bare patches, and the next drop on that corner lands with much less in the way.
02How bad is your crack?
Most protector cracks start at a corner, because that's where a phone usually lands. A corner crack that stays in the outer few millimeters is mostly cosmetic for now. A crack that runs across the middle of the screen, or a starburst of lines from one point, means the glass has lost most of its strength and will keep shedding tiny chips as you use it.
| What you see | Risk if you keep it | What to do |
|---|---|---|
| Small chip on one edge | Low. Edge may start to lift | Replace within a week or two |
| Single hairline crack | Low to medium. Can spread with the next knock | Order a new one now |
| Spiderweb from one impact point | Medium. Touch dead spots, sharp edges | Replace within a day or two |
| Pieces missing or flaking | High. Glass can cut fingers and cheek | Remove it today |
| Crack over the front camera or sensors | Blurry selfies, flaky face recognition | Replace soon |
+Keeping it a few more days
- Still covers most of the screen while a replacement ships
- Taping isn't needed for a single clean crack
- Costs nothing extra
–The downsides
- Much less protection at the cracked spot
- Touch can skip or register in the wrong place over the crack
- Sharp edges can catch skin or pocket lint
- Cracks tend to grow with each small knock
03Check the real screen underneath
It's common for a cracked protector to hide a perfectly fine display, and it's also common to assume the screen is fine when it isn't. Do this check before you put a new protector on, because a crack sealed under fresh glass is easy to miss.
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Look with the protector still on
Open a plain white image at full brightness. Lines of color, a dark blotch or flickering that sits under the glass point to display damage, not protector damage.
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Test touch across the crack
Drag an app icon slowly across the cracked area in all directions. If it drops or jumps, note whether that changes after the protector comes off.
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Remove the protector safely
Cover it with packing tape, then peel from the least damaged corner. Our guide on how to remove a screen protector has the full method for cracked glass.
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Inspect the bare glass
Tilt the phone under a lamp. Run a fingernail gently over any mark: a scratch you can feel, or a crack that catches light from both sides, is in the display glass.
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Clean, then fit the new one
Wipe away glass dust with a microfiber cloth and a tape dab before installing the replacement, or you'll trap fragments under it.
A cracked display on an iPhone, Galaxy or Pixel should go to the manufacturer or an authorized repair shop. A new protector over a cracked screen can hide the damage but won't stop it spreading.
04Why a cracked protector messes with touch
Your touchscreen reads tiny changes in an electric field through the glass. A clean, well-bonded protector is thin enough not to matter. A crack can lift the glass slightly or leave an air gap, and that's where you get missed taps, laggy scrolling or taps that land a few millimeters off.
In some cases a broken protector even causes the phone to register touches you didn't make. If that's happening, see our guide to ghost touch on a phone screen. Phones with an in-display fingerprint reader are more sensitive still; a crack over the sensor can stop it reading your print entirely.
05Choosing the replacement
Buy the same size you had if it fit well with your case. If your old one cracked from the edge inward, a full-cover protector that reaches closer to the frame gives the corners more coverage. Avoid the very thickest "armor" glass if your case already has a raised lip, as the two can fight each other and lift the edges.
- Multi-packs are the cheapest insurance. The next crack becomes a five-minute swap.
- Install frames stop the new protector going on crooked, which matters more than most people think. A misaligned edge is a weak edge.
- Earpiece dust mesh versions cover the speaker slot so lint doesn't build up under the glass.
One more thing worth checking: whether your case played a part. If the protector cracked along an edge with no obvious impact, a tight case lip pressing on the glass can be the reason. In that case a slightly smaller, case-friendly cut will last longer than another full-cover piece.
Glass protectors for current iPhones, including packs with spares and an alignment frame.
Still undecided on material? Tempered glass vs plastic explains why film rarely cracks but protects less against impacts.
Questions people ask
Is it OK to use a phone with a cracked screen protector?
For a few days, usually yes, if the crack is a single clean line. Replace it quickly if glass is flaking, edges are sharp or touch is unreliable. The cracked area offers much less protection against the next drop.
Does a cracked screen protector mean my screen is cracked?
Not necessarily. Often only the protector broke. Display damage shows up as lines, black spots, flicker or a crack you can still see after the protector comes off.
Can a cracked screen protector cause touch problems?
Yes. Cracks can lift the glass or leave air gaps, so taps over that area may be missed, delayed or land in the wrong place. Some phones even register phantom touches. Replacing the protector usually fixes it.
Why did my screen protector crack without dropping it?
Pressure in a pocket or bag, a case lip pressing on the edge, or a big temperature swing can crack thin glass. Sometimes a tiny edge chip from an earlier knock spreads later.
How often should you replace a screen protector?
Whenever it cracks, chips, lifts or gets scratched enough to bother you. There's no fixed schedule. A well-fitted glass protector can last a long time if it never takes a hard hit.