WARNING: Overheating can cause a battery to swell by triggering a chemical reaction that releases gases, increasing internal pressure and deforming the battery. Immediately stop using the device if the battery is swollen.
A device turning on and off repeatedly or spontaneously is likely caused by power issues, such as a faulty or low battery, loose connections, or a failing power supply. Other causes include overheating, a software glitch, or an incompatible or corrupted app. To troubleshoot, check all power cables, restart the device, monitor for excessive heat, update the software, and uninstall recently installed apps to identify and fix the problem.
- Restart the phone by holding the power button to force a restart.
- Check for overheating and avoid using the device in extreme temperatures.
- Look for software issues by updating your operating system or uninstalling recently installed apps that may be causing problems.
- Inspect the battery for damage or if the phone is old, as a failing battery can cause unexpected shutdowns.
- Check the power button to ensure it's not stuck or malfunctioning.