---
title: "iPhone Duo hinge lets in dust and inner display fails bend test"
description: "Zack Nelson's JerryRigEverything test found dust entering the hinge despite IP68, and the inner display gained a permanent green line when bent."
url: https://mactoreality.com/iphone-duo-hinge-lets-in-dust-and-inner-display-fails-bend-test
published: 2026-10-24T20:43:28Z
updated: 2026-10-24T20:43:28Z
author: "Mac to Reality Newsdesk"
category: Rumours
tags: ["iPhone"]
publisher: Mac to Reality
ai_assisted: true
apple_heat_impact: -2
---

# iPhone Duo hinge lets in dust and inner display fails bend test

*Zack Nelson's JerryRigEverything test found dust entering the hinge despite IP68, and the inner display gained a permanent green line when bent.*

**Key points**

- JerryRigEverything's iPhone Duo durability test found dust entering the hinge despite the phone's IP68 rating.
- The inner display gained a permanent green line and became unresponsive during the bend test.
- Apple has not commented, and it is unclear whether the dust ingress affects other iPhone Duo units.

Zack Nelson’s JerryRigEverything durability test, published on 24 October, found dust getting into the iPhone Duo’s hinge despite its IP68 rating. In the bend test, the inner display gained a permanent green line and then stopped responding.

According to MacRumors’ write-up of the video, the dust entered through several points in the hinge and overwhelmed the magnets that hold the phone shut.

The outer screen, protected by Ceramic Shield 2, only began to show scratches at level 7 on the Mohs hardness scale. The inner screen marked at level 2, although Nelson said its matte nano-texture coating tended to mask scratches. He also pointed out that folding phones have now been on sale for about seven years.

The iPhone Duo’s hinge was earlier examined in a CT scan we covered.

Apple has not commented on the test, and it is unclear whether the dust ingress is a one-off in the tested unit or a design issue affecting other units.

## Sources

- [JerryRigEverything (YouTube): iPhone Duo Durability Test - DONT DO THIS](https://www.youtube.com/watch?v=5laDGy4INB0)
- [MacRumors: iPhone Duo Fails JerryRigEverything's Dusty Durability Test](https://www.macrumors.com/2026/10/24/iphone-duo-fails-jerryrigeverything-test/)

*This report was written by the Mac to Reality newsdesk with AI assistance from the sources listed above, under the editorial policy at https://mactoreality.com/editorial-policy.*