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The introduction of each new iPhone is preceded by months of intensive development and subsequent testing  through prototypes, which are supposed to reveal all the ills of the product and prevent their deployment in the final version. Just the prototypes though Apple very well guarded and the public can therefore only view them sporadically - i.e. miniAt least in the case of newer products. However, images appeared on Twitter tonight that show a prototype of the iPhone introduced last year - specifically the 12 model. Pro. 

As you can see in the gallery next to this paragraph, the prototype of the phone is practically 100% identical in design to the final version. The shade of blue, which at least in the photos seems darker than the current version of blue on the 12 models, may raise questions. Pro, but it is possible that this is just an optical illusion caused by poor lighting of the prototype. As for the software, the phone runs an internal operating system with a number of diagnostic tools called SwitchBoard, which helps Applu in basic testing of everything important. The system is then replayed with a classic iOSso that the prototype can be provided for testing in real life. Of course, that is also necessary before releasing the phone to the public. And by the way, testing in real life is also logically the biggest challenge.ancIt's a great way to see the phone before its official premiere. In 2017, for example, it was revealed in advance iPhone X and even in the Czech Republic – specifically in Prague. 

As for the prototypes for the iPhone 13 planned for this year, he has those too Apple almost 100% finished. However, most of them will still be focused on the early testing and development phase, so with their design to the final idea AppThey will not come very close to the . However, it can be expected that miniAt least their renders could soon fly around the world, as they have been doing well in recent years. leakerregularly obtain from their sources. 

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