Apple has just released iOS 11.0.2 for iPhone and iPhone.
This update does not consist any new feature but comes with some big
improvements on iOS.

Apple has just released iOS 11.0.2 for iPhone and iPhone. This update does not consist any new feature but comes with some big improvements on iOS.

The iOS 11.0.2 update is mainly focused for iPhone 8 and
iPhone 8 Plus as it fixes the crackling sound during a phone call. The update
has also fixed an issue where there were certain disappearing of photos from
the photos library. The iOS 11.0.2 has also fixed an issue relating to email attachment
that would not open.
According to Apple’s Official Release Note:
  • Fixes an issue where crackling sounds may occur during calls
    for a small number of iPhone 8 and 8 Plus devices
  • Addresses an issue that could cause some photos to become
    hidden
  • Fixes an issue where attachments in S/MIME encrypted emails
    would not open

You can update to iOS 11.0.2 which is available via OTA (Over
The Air). Just launch Settings – Go to General Software Update and Hit
Download and Install.