The reason an iPhone keeps restarting can be due to several common causes including software glitches, faulty apps, battery issues, overheating, or hardware damage. A software update may have introduced bugs, or corrupted apps can cause instability. If the battery is failing, it can lead to sudden shutdowns and restarts. Overheating from prolonged use or intensive apps can also trigger restarts. Additionally, physical hardware damage, such as from water or drops, can cause this issue.
To fix the problem, some effective steps include restarting the iPhone, updating iOS to the latest version, uninstalling recently added or problematic apps, checking battery health (and replacing the battery if needed), resetting all settings, using recovery or DFU mode if stuck in a restart loop, and seeking professional repair services if hardware damage is suspected.
