system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why isn't it possible for hackers to downgrade the operating system of iphones?

Fundamentally, a phone is just a little pocket computer. So why can't hackers just wipe everything and install any type of operating system they would like (ie android on an iphone)? How exactly do apple prevent this from being possible? If they can find exploits allowing them to jailbreak the phone, can't they use those to flash other operation systems or older versions of ios?
gpt
They absolutely can, there just isn't enough of a demand for many of those types of hacks. For example, OpeniBoot is a project for an open source version of iBoot (the Apple bootloader) that makes it possible to install Android, or many many other OSes, on your Apple device. But because not enough people are interested in doing that, only very few Apple devices are supported because they don't have enough people working to figure out how to make it work on more devices.