I have upgraded my iPhone 5S from iOS 11 to iOS 12 to test out the improved iOS. After upgrading to iOS it is locked by a 6 digit pin which only Apple knows how to unlock. So essentially all upgrades are not free and have to be paid. I do not mind paying $70 to iStudio at City Square Mall to resolve this issue. But later I discovered that my old Apple ID has not been cleared and there is no way you can key in a new Apple ID unless you pay them an additional $50. Imagine all the dirty tactics employed by Apple when they used layers and layers of security to hold you to ransom. When you buy an Apple product, never upgrade your OS as everything is not free, and every layer of security you ask them to unlock is also not free, no wonder Apple can make billions when they hold everyone to ransom, not paying for research and development to create a better product.
Contributed by Oogle.
PS : I want to highlight that the 6 digit pin is not setup by Apple but from my previous iOS 11 but I find it stupid to link your previous Apple ID and password or you never access iCloud or setup anything at all. I need to hack my old account to retrieve the password or the phone is as good as spoilt and cannot use. I resolved everything in 1 hour.