Sometimes beta versions of operating systems are a quite interesting function, which the manufacturer officially announced. So, the developer Steve Trouton Smith found in iOS 10.3 there is a hidden diagnostic mode that will be used by employees of service centers and Apple stores to identify problems with the iPhone and iPad.
Function, which is called CheckerBoard, allows you to detect problems with the iOS device using special software not available in normal use. However, Troton-Smith found a way to access the diagnostic mode by a simple combination of keys.
So, how to turn off diagnostic mode on iPhone and iPad:
Step 1: switch Off the device.
Step 2: connect the device to the power adapter and immediately press and hold the Home button and volume up during boot. If you have an iPhone 7 or iPhone 7 Plus, you need to hold down both volume keys.
Step 3: After the Apple logo appears the diagnostic test mode.
That’s all you need to do to activate the diagnostics mode. For ordinary users it is not recommended to test because of the consequences yet unknown. Perhaps in the final version Apple will change the way access to the utility.
Now the company is testing iOS 10.3 beta 4, which debuted earlier in the week. The release date of public version information yet, it is expected that the update will be released in March along with new iPad models.