A black screen on an iPhone or iPad in iOS 11 that was working perfectly not too long ago must be puzzling. You don’t know the cause, you fear that it could be something serious – which may actually be the case – and, what’s most important, you cannot use the device as intended.
When it happens, the options are limited, somewhat intransigent. There are one or two things you can try on your own and one that you have no power on. We are talking about wiping the cache partition from within the Recovery Mode and, if this isn’t working, performing a factory reset, with the acknowledged risk that you will lose everything you have stored on the device. As for the option that doesn’t depend on you, it involves the professional technical support. Until we get there, let’s briefly discuss what you can actively try…
Wiping the cache partition
Making your iPhone or iPad in iOS 11 to boot to Recovery Mode and, from there, to wipe the cache partition is simple and doesn’t involve the risks of losing any data. Follow these steps:
- Go to Settings >> General;
- Select the Storage & iCloud Usage;
- From there, go to Manage Storage >> Documents and Data;
- Identify the items whose cache you want to delete and slide their toggles to the left;
- Tap on Delete;
- Tap on Edit;
- Select the Delete All option.
For further reference, read this guide on how to clear the iPhone and iPad in iOS 11 cache.
Performing the factory reset
First of all, you should know that this implies that you bring the iPhone or iPad in iOS 11 to the status it had when it went out of the factory. Nothing from what you previously stored on it will be left unless you back up all the files. Of course, if the screen went black, you may not have this option, but just in case you do, use it before anything else!
After that, you can follow the instructions from this guide on how to factory reset the iPhone/iPad in iOS 11.
Obviously, if not even the factory reset produced any positive change, take the device to an authorized service. You cannot handle the black screen on your own.