There are many ways to fix an unresponsive including the dangerous IndexedDB API issue that allowed malicious websites to access the s' browsing history.
Similarly, there are a couple of errors that seem to be reoccurring. For instance, the 'Last Line No Longer Available' error has been circling in iPhones since 2018, which also happens to be the year when Apple launched its iOS 12. Virtually all the iPhone models that come with an e-SIM are vulnerable to the error, but multiple workarounds can fix it.
An Apple sells a $19 cleaning cloth for all its devices as well.
Force Restart On iPhone To Fix The Unresponsive Display
If the fixes mentioned above do not help fix the non-responsive iPhone display, troubleshooting the device can do the trick. The best way to deal with the problem will be to resolve the issue is updating the iPhone. If the screen is not responding in a particular application, reinstalling or updating it should fix the problem.
Several s have linked the iPhone screen error to the unavailability of storage on the device. The hypothesis behind it seems to be the storage requirement for running an application with all the required resources. occur after an incident of accidental physical or liquid damage, ing Apple for the iPhone display error will be the best option.
Source: Apple