If that doesn’t convince you to update your devices, I don’t know what will. Apple believes that hackers actively exploited this vulnerability as well. If hackers gained kernel privileges, they could theoretically take total control over your devices. It has access to everything on the hardware. The “kernel” is the core of the code in an operating system. This method will also work if your iTunes doesn’t recognise your device or says it’s in recovery mode, if your screen is stuck on the Apple logo for several minutes with no progress bar, and you see the Connect to iTunes screen.Even more concerning, Apple says another vulnerability in its software could allow an app to “execute arbitrary code with kernel privileges.” If you don’t have a PC or Mac, you can take the phone to an Apple store or authorised service provider.
If it does, or the Update screen fails to complete the process, repeat steps 1-3 again. The process shouldn’t take longer than 15 minutes.
A prompt will appear on iTunes on the Mac or PC asking whether you want to update or restore your phone.On an iPhone 8 or newer, press the Volume Up button, then quickly press the Volume Down button and then press and hold the Side button till the iPhone reboots and you see the iTunes recovery screen on the iPhone.On an iPhone 7 or iPhone 7 Plus, press and hold the Sleep/Wake and Volume Down buttons at the same time.On an iPhone 6s and earlier, iPad, or iPod touch, press and hold the Sleep/Wake and home buttons at the same time.Your phone needs to be in recovery mode to continue and the method of doing so depends on your handset.If iTunes is already open, close it and reopen.It also helps to be running the most up-to-date version of the iTunes software. You may need to sign in to your Apple ID account. Connect your iPhone to a Mac or PC’s USB or USB Type-C port via your charging cable.Alternatively, if you’ve installed iOS 11 and it’s causing apps to crash or your battery to overheat – an issue seen on older handsets –- you can revert back to a previous version, or complete a factory reset and try the installation again. If, while updating your phone to iOS 11, you’ve run into problems, here’s how to solve them. In particular, they’re experiencing an error that has been a regular problem in previous updates – the Unable to Verify Update iOS error. Although there have been fewer issues with the rollout of iOS 11, some people are reporting issues. A small number of Apple users complained that updates have bricked their phone – a term used to describe a phone that can’t be used, making it as useful as a brick.
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