In the Internet appeared previously unknown images iPhone. Photos of the device revealed in his Twitter blogger under the name DongleBookPro.
According to the author, the photo shows prototypes of the iPhone 2G, which Apple engineers were testing future devices. Prior devices differ from the published in serial production that have a mute button engraved with the form of a bell. The blogger believes that in this way the company was going to explain to users the purpose of this controls smartphone.
Eventually Apple changed the appearance of the switch, removing the image of a bell, and adding instead a color indicator. Like switch sound were used in all Apple smartphones, including relevant line device iPhone 11.
Also changed the side buttons the iPhone prototype pre-installed test different firmware, not intended for commercial use. On the rear panel of the smartphone is shown by the engraving, with which the engineers have provided a version of the device and other technical data.
Earlier blogger DongleBookPro revealed the prototype of the first iPod Touch. According to the author, the player with touchscreen were to receive the glossy surface of the panel, but in the end Apple chose mirrored metal panel. However, later the company has released several products, featuring a glossy coating and, in particular, presented in 2013 Mac Pro and announced in the fall of 2016 the iPhone 7.
