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New video offers detailed look at historically significant iPhone 4S prototype

Added 01-14-21 01:31:02pm EST - “A new video published by the YouTube channel Apple Demo this week offers a really interesting look at a prototype version of the iPhone 4S. The video shows the iPhone 4S during the design validation testing phase of its development,…” - 9to5mac.com

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Posted By TheNewsCommenter: From 9to5mac.com: “New video offers detailed look at historically significant iPhone 4S prototype - 9to5Mac”. Below is an excerpt from the article.

A new video published by the YouTube channel Apple Demo this week offers a really interesting look at a prototype version of the iPhone 4S. The video shows the iPhone 4S during the design validation testing phase of its development, with an interesting tie to Steve Jobs’ tenure at Apple.

For background, Apple’s hardware development typically moves through stages including EVT (engineering validation test), DVT (design validation test), and PVT (production validation test). This video shows the iPhone 4S in the DVT stage, a point at which many decisions had been finalized already.

This iPhone was used by engineers to analyze the software behavior of “crashing a specific hardware component, known as the baseband,” the video explains. After crashing the baseband, the phone would check to ensure that the baseband and associated data was still readable.

The iPhone 4S in the video is running a form of iOS not designed to be used by consumers. The applications on the iPhone are meant purely for testing.

Following this testing, the iPhone 4S would have been sent to a recycling facility to be demolished, but this specific model somehow got into the wild and still lives on today. The video calls this iPhone “one of the most historically significantly pieces” ever seen.

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