If your Android phone keeps restarting automatically, it can be extremely frustrating. The phone may reboot randomly, get stuck in a restart loop, or restart while using certain apps. This issue affects both old and new Android phones.
I personally faced this issue on an Android phone where it started restarting on its own after a system update. Instead of assuming a hardware failure, I tested a few fixes and managed to stop the random restarts without visiting a service center.
In this article, I’ll explain why Android phones restart automatically and share practical fixes that actually work.
How Automatic Restart Issues Usually Appear
This problem may look like:
- Phone restarts randomly
- Phone restarts while opening apps
- Phone stuck in a boot loop
- Restart happens after charging
- Phone restarts when battery drops to a certain level
Each symptom points to a different cause.
Common Reasons Android Phone Keeps Restarting
1. Software Bugs After Updates
System updates can sometimes introduce bugs or app incompatibility.
2. Problematic or Corrupted Apps
Some apps cause system conflicts and force restarts.
3. Overheating Issues
Phones restart automatically to protect internal components.
4. Low or Degraded Battery Health
Old batteries may fail to provide stable power.
5. Storage or System File Corruption
Corrupted files can trigger continuous restarts.
Fixes That Actually Work
Method 1: Restart Phone in Safe Mode
This was the most helpful step for me.
What it does:
- Disables all third-party apps
- Helps identify app-related issues
If restarts stop in safe mode, a third-party app is the cause.
Method 2: Uninstall Recently Installed Apps
Apps installed just before the issue started are often responsible.
What to do:
- Remove recently installed or updated apps
- Restart the phone
- Check if restarts stop
Focus on launcher, cleaner, or battery apps.
Method 3: Clear Cache Partition
This removes corrupted system cache.
Steps (vary by phone):
- Power off phone
- Enter recovery mode
- Select Wipe cache partition
- Reboot device
This fix works well after updates.
Method 4: Check for Software Updates
Manufacturers release bug-fix updates.
- Go to Settings → Software update
- Install pending updates
- Restart phone
Updates often fix restart loops.
Method 5: Free Up Storage Space
Low storage can destabilize the system.
Recommended:
- Keep at least 2–3 GB free space
- Delete unused apps
- Clear app cache
System stability improves with enough storage.
Method 6: Stop Overheating
Overheating forces automatic restarts.
What helps:
- Remove phone case
- Avoid heavy apps
- Stop charging while using phone
Let the phone cool down completely.
Method 7: Factory Reset (Last Option)
Only try this if nothing works.
- Back up important data
- Reset phone
- Install apps gradually after reset
If restarts continue, hardware repair may be required.
When It’s a Hardware Problem
Hardware repair is likely if:
- Phone restarts even in safe mode
- Issue appeared after physical damage
- Battery drains extremely fast
- Phone restarts at the same battery percentage
Battery replacement often solves this.
What You Should Avoid
- Installing multiple cleaner or booster apps
- Ignoring overheating warnings
- Using unofficial ROMs without experience
- Skipping backups before reset
These worsen the issue.
FAQs
Can bad apps cause phone restart?
Yes, very commonly.
Does battery health affect restarts?
Yes, unstable power causes reboot loops.
Is factory reset guaranteed to fix it?
Only if the issue is software-related.
Should I replace the battery?
If phone is old and restarts at low battery, yes.
Final Thoughts
If your Android phone keeps restarting automatically, the issue is usually caused by problematic apps, overheating, or battery instability—not immediate hardware failure.
From my experience, safe mode testing and clearing cache partition fixed the issue quickly. Always try software fixes before spending money on repairs.
Vaishnav Singh is the founder and primary author of TechHary.com. Based in Mumbai, he brings hands-on professional experience to his writing, having worked extensively as a Windows expert within the IT industry. His practical background in solving complex technical issues fuels his passion for creating clear, helpful, and relevant content. At TechHary.com, Vaishnav dedicates himself to publishing in-depth articles, guides, and insights aimed at demystifying technology for enthusiasts and professionals alike. His mission is to build a trusted resource where readers can find reliable information to navigate the ever-evolving tech landscape.