A date-related bug in iOS 11.1.2 is causing iPhones to crash and then reboot when time-based notifications are received after 12:15 a.m. on December 2, according to reports on Social Media.
According to the poeple facing the issue, the problem seems to be tied to local notifications received from apps that offer daily or repeat reminders.
— Yoshimasa Niwa (@niw) December 2, 2017
If you’re one of those who have been facing any such issue, the first thing you need to try is disabling notifications for apps that send regular reminders. Apple, though, now has released iOS 11.2 to fix the problem, along with a support document describing the steps to take if you’re experiencing crashes.
If your device with iOS 11 unexpectedly restarts repeatedly on or after December 2, 2017, learn what to do.
Use these steps to turn off notifications for all the apps on your device, then update your device to iOS 11.2:
1. Tap Settings > Notifications.
2. Tap an app, then turn off Allow Notifications. Repeat this step for each app.
3. Update your device to iOS 11.2.
4. After updating, tap Settings > Notifications and turn Allow Notifications on again for each app.