I have powered down and up multiple times, but certain keys on the left side of are unresponsive.
iPhone 6s, iOS 11
An unresponsive touch screen is generally a hardware issue. Contact Apple and arrange to have them run diagnostics. They can do a lot of them remotely.
Genius Bar Reservation and Apple Support Options - Apple
If your iPhone 6 running iOS 11 is unresponsive, you can try a few troubleshooting steps to resolve the issue:
1. Force restart your iPhone by pressing and holding the power button and the home button (if available) simultaneously until the Apple logo appears.
2. If the force restart doesn't work, connect your iPhone to a computer and try to update or restore it using iTunes.
3. Check if there are any pending software updates for your iPhone. Go to Settings > General > Software Update and install any available updates.
4. If the issue persists, you may need to contact Apple Support or visit an authorized service center for further assistance.
Left corners of the touch screen are unresponsive
