Wired
News from IT House, January 15 Foreign media 9to5 Mac reported that a new video released by the YouTube channel Apple Demo this week provides you with a very interesting display of the design of the iPhone 4S prototype. The video shows the iPhone 4S in the development and design verification test phase, and it is closely related to Jobs’ tenure at Apple.
Apple’s hardware development usually goes through stages including EVT (Engineering Verification Test), DVT (Design Verification Test) and PVT (Production Verification Test). This video shows the iPhone 4S in the DVT stage, at which time many decisions have been finalized.
The video explains that engineers use this iPhone to analyze the software behavior of “a specific hardware component fails, that is, the baseband”. After the baseband fails, the phone will check to ensure that the baseband and related data are still readable.
IT Home is informed that the SwitchBoard system running on the iPhone 4S in the video is not a regular iOS system designed for consumers to use. This is an internal operating system that Apple uses to test the system functions of the new iPhone models.
After this test, the iPhone 4S was supposed to be sent to a recycling facility for disassembly, but this particular iPhone model was leaked to the outside world for some reason and is still usable today. The video calls this iPhone “one of the most historically significant works ever.”
“Every Apple device has a serial number, a series of identifiable information, which represents the only one made by Apple devices. The date of manufacture of this iPhone is exactly one week before Jobs resigns as CEO of Apple. Although for some people , This may just look like some old and unknown development hardware, but they are technically intact.
In fact, this is far more than that. This prototype represents the end of Jobs’s lasting legacy at Apple. These prototypes were one of the last products produced under his full supervision. “
Below is the video.