Why Is Your iPhone Restarting by Itself? Common Causes and What You Can Do

Is your iPhone randomly turning off and restarting without warning? If it's happened more than once, you’re probably frustrated—and rightfully so. The good news? This issue is often fixable. In this article, we’ll walk you through the most common reasons and what steps you can take to restore your phone’s stability.

🔋 1. A Worn-Out Battery

One of the most frequent causes of unexpected restarts is a degraded battery. When the battery can’t supply consistent power, the system may restart to protect the phone.

How to check it:

• Go to Settings > Battery > Battery Health & Charging.

• If the maximum capacity is under 80%, a battery replacement may be necessary.

🧩 2. Software Issues or Faulty Updates

A recent iOS update or a buggy app can cause crashes and restarts.

What to try:

• Make sure your system is updated to the latest version.

• Delete any apps you installed just before the issue started.

• Perform a manual restart to reset background processes.

🌡️ 3. Overheating

Excessive heat is a major cause of sudden shutdowns and restarts. iPhones are designed to protect their internal components by shutting down if they get too hot.

Tips:

• Avoid using your phone while charging in hot environments.

• Don’t leave it exposed to the sun or inside a car.

• Close heavy apps when you feel the phone heating up.

🛠️ 4. Hardware Problems

Drops, humidity, or wear and tear can damage internal components. A loose connector or failing part can trigger random restarts.

Signs to watch for:

• Flickering screen

• Speaker or touchscreen issues

• Restarts when you move the phone

In these cases, it’s best to get a professional diagnosis.

📲 5. Incomplete Restores or Jailbreaking

If your phone was restored from a corrupted backup, or modified using unofficial tools (like jailbreaking), system stability may be compromised.

Possible fix:

• Wipe and reinstall iOS with a clean setup.

• Avoid third-party modifications.

✅ What Should You Do Now?

• Check your battery health.

• Free up space and uninstall questionable apps.

• Keep your system updated.

• If the problem persists… it’s time for a professional inspection.

🔧iProX Can Help

Our expert technicians can run a full diagnostic on your device, check the battery, clean internal connectors, and get your phone back in shape. If your iPhone keeps restarting, don’t wait—many of these issues have quick and affordable solutions.

📍 Visit us in Guadalajara or Puerto Vallarta, or contact us via WhatsApp. We’re here to help you give your phone a second life.