A cracked back usually doesn't stop your iPhone working, but it isn't harmless. Sharp edges can cut you, glass can flake off, dust and moisture get in more easily, water resistance is gone, and cracks can spread to the camera lenses or damage the wireless charging coil. A case helps in the short term. Replacing the back glass is the proper fix.
What the back glass does
The glass back isn't just cosmetic. It protects the internals, forms part of the seal that gives your iPhone its water resistance, and lets wireless and MagSafe charging pass through to the coil behind it.
Glass is used instead of metal precisely because wireless charging can't pass through metal. The downside is that glass cracks, and back glass often takes the hit when a phone lands face up or slides off a table.
The real risks of leaving it cracked
- Cuts: sharp edges and loose shards can cut your hand or face.
- Water and dust: the seal is broken, so the phone is no longer water resistant.
- Spreading cracks: cracks often grow, and can reach the camera lens covers.
- Wireless charging: the coil behind the glass can be damaged by the impact or by flexing glass.
- Resale value: a cracked back lowers trade-in and resale offers.
Protect it until it's repaired
A few simple habits keep the damage from getting worse until it's fixed:
- Put it in a case that covers the whole back.
- Keep it away from water, including rain and steamy bathrooms.
- Don't pick at loose glass.
- Check for sharp edges before putting it in a pocket.
Should you tape it?
Clear tape over the cracks can stop small shards flaking off for a few days, but it's not a fix. Tape traps dust, peels at the edges, and does nothing for the broken seal underneath. A case that covers the whole back is a better short-term option, and a repair is the real one.
Check for other damage
A drop hard enough to crack the back can damage other parts. Check the screen, the cameras (try every lens), the buttons, and wireless charging. If anything else is off, mention it when you book so it's diagnosed at the same time.
Also check the camera lens covers on the back. They're separate from the back glass, and a crack in a lens cover causes hazy photos, flare and spots. See iPhone camera blurry or shaking.
Your repair options
On most models the back glass can be removed with a precision laser and replaced while keeping your original frame. That's usually quicker and cheaper than a full housing. A back glass repair starts at $34.99, and we test wireless charging and MagSafe afterwards.
Laser removal means the old glass and adhesive come off cleanly, and the new panel is bonded and pressed for a factory-clean finish. Your phone keeps its original frame, buttons and internals. If the frame is badly bent, a housing replacement may be the better fix. We'll show you options before any work. Cracked camera lens covers can be replaced on their own as part of a camera repair.
A note on water resistance after repair
New adhesive restores the seal, but after any repair, factory-level water resistance can't be guaranteed. Treat a repaired iPhone as splash resistant, not waterproof.
Frequently asked questions
Can I keep using my iPhone with cracked back glass?
Usually, in the short term, if you're careful about sharp edges and keep it dry. It's best to repair it before cracks spread or moisture gets in.
Does cracked back glass affect water resistance?
Yes. The glass is part of the seal, so a cracked back means the phone is no longer water resistant.
Is back glass repair the same as a screen repair?
No. The screen and back glass are separate parts with separate repairs.
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