You may not be able to revert to iOS 16 without losing personal data Unless you're ready to take on such issues, you should not install iOS 17 on your iPhone yet, especially if it's your daily device. This list of problems is simply to show what you can expect from early pre-releases.

Most of the bugs, if not all, should be ironed out by the time of the general public release. That's not a critique of the software itself, because all developer betas will have issues such as these, which is normal. Note: You can learn about issues other iOS 17 beta users are experiencing in this Reddit thread. My Mac says a software update is required to connect with my iPhone, but the update doesn't install.

I can't connect my iPhone to my computer.

Certain applications don't work properly. Messages, eBay and a few banking apps have a few bugs.So for the time being: you can't install unsigned versions.For example, I'm running the first iOS 17 developer beta on an iPhone 14 Pro and I've already had problems with several features and settings: If you had not saved such a signature for your device, you could still load an unsigned SEPOS firmware via DFU, so you could at least boot old versions tethered.Īnd now for a self-plug: I'm on the development team of the checkra1n jailbreak and we do plan to implement a reasonable interface for the aforementioned procedures - but we're still quite a way off, and not our top priority.If you had previously saved such a signature while Apple was handing them out, you could use these two bugs to downgrade to such a version, and then continue to use it without a jailbreak. Apple's firmware signatures tie a particular version to a particular device.It's limited to A8-A10 chips (which would include your iPhone SE), and allow two potential solutions: Now there is another vulnerability called blackbird - this time in SEPROM. So you'd have to patch the system to either update the code that is responsible for talking to the SEP so that it works with a currently signed firmware, or to not talk to the SEP at all. The bug only affects the Application Processor, not the Secure Enclave.

You can't just 'install' an OS and be done with it. The bug is in the DFU portion of the BootROM, so in order to use it, you have to put your device into DFU on each boot.There's a couple of issues with that though: All iPhones up to and including the iPhone 8 and X do actually have a known BootROM vulnerability - the one for A5-A11 chips is called checkm8. Find a vulnerability in Apple's boot chain.Īssuming number 1 and 2 are not feasible for you, let's look at the third option.

For iphone instal Zero to One