Your iPhone keeps randomly vibrating most commonly because of hidden or silent notifications, accessibility settings related to vibration, email fetch settings, software bugs, or sometimes hardware issues.
Common Reasons for Random Vibrations
- Apps can send notifications that vibrate but don't show visible alerts, causing "phantom" vibrations.
- Accessibility settings, especially vibration alerts, might cause unprompted vibrations.
- Mail accounts set to fetch or push data can cause vibrations when new emails arrive.
- Software glitches or bugs in iOS or apps can trigger vibrations unexpectedly.
- Hardware problems like a faulty vibration motor or damaged components could be the cause if software checks don't resolve the issue.
- Random vibration may sometimes occur when charging due to a faulty cable.
Troubleshooting Steps
- Check notification settings for apps and enable visible alerts to avoid silent vibrations.
- Review vibration and accessibility settings (Settings > Accessibility > Touch).
- Adjust mail fetch settings (Settings > Mail > Accounts > Fetch New Data) to manual or increase fetch intervals.
- Update your iPhone to the latest iOS version (Settings > General > Software Update).
- Restart your iPhone to clear minor software glitches.
- If all else fails, reset all settings or visit an Apple Store for hardware diagnostics.
Most issues are resolved with these steps unless there is a hardware problem involved. Keeping your apps and iOS updated and reviewing vibration-related settings is usually the key to stopping random vibrations.