Q:"I always use a 4-digital passcode on my iPhone 6 Plus. All of sudden it happens, the iPhone passcode changed itself to a 6-digit one. I have no idea what the 6-digit passcode is because I never set it. Until now, I have been locked out of my iPhone for 24 hours. I need a quick method to crack it. Any help?" - from Apple Community

The problem that iPhone itself changes passcode might sound uncommon for you, but in reality, it frequently crops up. If you have followed with interest on iOS-related information, you will discover that a great many users from the Apple community have been reporting that their iPhone passcode changes by itself of late. For this recent hot problem, the post presents several straightforward ways to address it.