A mobile repair technician applying screen protector on cracked Android smartphone display at a local communication shop with vivo phones on background shelf.

Cracked Phone Screen? 2 Safe Ways to Prevent It From Getting Worse

Published: July 22, 2026

If your phone’s outer glass is cracked and you want a temporary fix instead of replacing it, you can use packing tape or a tempered glass screen protector to stop the crack from getting worse.

This will not make the glass look or work like new. It only helps prevent the crack from spreading further. This method only works if the glass is not badly shattered. If there are only one or two cracks, you can still see the screen clearly, and the phone works without any problems, then you can try this.

This issue frequently comes to our shop. Some customers prefer to replace the entire glass, while others ask us for a temporary solution. We’ve used this approach to help stop cracks from spreading until the screen could be repaired.

Do not rely on repair pastes or glue to fix a cracked phone screen. They cannot restore the damaged glass or make it as strong as before. Some products may temporarily slow the crack from spreading, but they are not a permanent solution. If the crack becomes larger or starts affecting the display or touch response, replacing the screen is the safest option.

According to the iFixit Screen Repair Guide, damaged phone screen glass cannot be permanently repaired with glue or similar DIY products. If the damage becomes worse, replacing the screen is the recommended long-term solution.

Why You Should Prevent a Screen Crack from Spreading

A small screen crack can become worse over time. Regular use, accidental drops, or pressure from carrying your phone in a pocket or bag can cause the crack to spread.

A cracked screen can also leave small openings that allow dust, dirt, and moisture to enter. If they reach the display underneath, they may cause touch issues, dead pixels, screen discoloration, or even display failure. In many cases, this means replacing the entire screen instead of just the outer glass, which is usually more expensive.

If dust or moisture gets in through a crack, the damage doesn’t always show up right away. Weeks later, you might notice one spot on the screen that stays stuck on one color and won’t respond to touch — a different problem, but caused by the same crack.

If your phone has problems beyond a cracked screen, our smartphone troubleshooting guide explains what to check before deciding on a repair.

The methods in this guide will not repair the cracked glass or make it look new. They are only intended to help reduce the risk of the crack spreading further until you can have the screen professionally repaired or replaced.

How to Apply a Tempered Glass Screen Protector

If you have isopropyl alcohol, lightly dampen a microfiber cloth and gently clean the screen. Do not spray the liquid directly onto a cracked screen. Let the screen dry completely. Next, cut a piece of clear packing tape just large enough to cover the cracked area. Finally, apply a tempered glass screen protector over the tape to help keep the crack from spreading and protect the screen from dust.

FAQ

Q1: Will a cracked outer glass affect the touch screen?
Not always. The touch layer is separate from the outer glass. If the touch layer is not damaged, your phone will work normally.

Q2: Can toothpaste fix a cracked phone screen?
No. Toothpaste cannot fix a cracked phone screen or fill the crack. It may even scratch the screen.

Q3: How long will packing tape last?
Packing tape can last for a long time if you cover it with a tempered glass screen protector. Replace the tape if it starts peeling or gets dirty.

Q4: Will a screen protector hide the crack?
No. It will not hide the crack completely, but it can help stop the crack from spreading and keep dust out.

Q5: Is my phone still original after the outer glass cracks?
Yes. A cracked outer glass does not change your phone. If the display and other parts are still original, your phone is still original.

A cracked phone screen does not always need an immediate replacement. If the display is clear, the touch works properly, and the damage is limited to the outer glass, simple steps like packing tape and a tempered glass screen protector can help protect the screen until you decide on a permanent repair. The key is to act early instead of waiting for the crack to spread. A few minutes of protection today can save you from a much more expensive repair later.

Niaz Ali Samon
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