Just today, Apple has released the third update to iOS 11 so far, the initial release of the OS was made available in the later part of September. Also exactly one week ago, iOS 11.0.2 was released with fixes for a rare case of the iPhone 8 making crackling sounds on the ear piece.
With iOS 11.0.3, Apple has fixed a few issues with unresponsive displays on the iPhone 6s, but only where phones weren’t serviced with genuine Apple parts. Also this update fixes a problem where the haptic feedback on the iPhone 7 and iPhone 7 Plus weren’t working on some phones.
– Fixes an issue where audio and haptic feedback would not work on some iPhone 7 and iPhone 7 Plus devices
– Addresses an issue where touch input was unresponsive on some iPhone 6s displays because they were not serviced with genuine Apple parts
As usual with any iOS updates, the phone can be updated from the Settings app.
Settings > General > Software Update
Or you can update using iTunes, plug the iPhone or iPad into your Mac or PC, then launch iTunes and click update.