How to Fix Infinix Smart 20 Accidental Restarts After Update

If your Infinix Smart 20 keeps restarting after an update, the phone may be struggling with a bad app, corrupted cache, low storage, overheating, or a software process that did not settle properly after installation.

This problem can look scary because the phone shuts off without warning. Sometimes it restarts while charging. Sometimes it restarts when opening apps. Sometimes it gets stuck on the Infinix logo before turning on again.

Start with the safe fixes first. Do not factory reset the phone immediately unless the problem continues after basic checks.

Quick answer

To fix an Infinix Smart 20 that keeps restarting after an update, restart the phone manually, charge it properly, remove recently installed apps, free up storage, update your apps, check for another system update, and use Safe Mode to test whether a third-party app is causing the problem.

If the phone still restarts by itself, wipe the cache if available, reset app preferences, or back up your files and perform a factory reset.

Infinix Smart 20 random restart diagnostic table

Symptom	Likely cause	What to try first
Restarts after opening one app	App conflict after update	Update or uninstall that app
Restarts while charging	Charger, cable, heat, or battery issue	Use another charger and remove the case
Restarts when storage is full	Low storage or system pressure	Free up storage
Restarts after booting	Background app or update process	Restart, update apps, monitor
Restarts and gets hot	Overheating or heavy app load	Cool the phone and close heavy apps
Restarts in a loop	Software corruption or failed update	Safe Mode, recovery options, service center
Restarts only with SIM/mobile data	Network, SIM, or signal issue	Test without SIM or use Wi-Fi
Restarts after installing apps	Bad third-party app	Use Safe Mode

Why does my Infinix Smart 20 restart after an update?

Your Infinix Smart 20 may restart after an update because the system is still adjusting, an app is not compatible with the new software, storage is almost full, or a background process keeps crashing.

Software updates can also expose old problems. A weak battery, faulty charger, overheating, or corrupted app data may not be obvious before the update. After the update, the phone starts acting up.

The good news: most random restart problems are fixable without repair.

1. Restart the phone manually

Yes, the phone is already restarting by itself. Still, do a proper manual restart first.

A clean restart can stop stuck background processes after an update.

1. Press and hold the Power button.
2. Tap Restart.
3. Wait for the phone to turn back on.
4. Leave it idle for a few minutes.
5. Use it normally and check if it restarts again.

If the screen is frozen, press and hold the Power button for about 10 to 15 seconds until the phone forces a restart.

This will not delete your photos, apps, or files.

2. Charge the phone and check the charger

A weak battery level can make restart problems worse, especially after a major update.

Charge the phone to at least 50% before testing anything else.

Also check the charger. Random restarts can happen when the phone receives unstable power, especially with cheap cables or damaged adapters.

Try this:

1. Use the original Infinix charger if you still have it.
2. Try a different charging cable.
3. Plug the charger into a wall outlet instead of a power bank.
4. Remove the phone case while charging.
5. Check if the phone restarts only when plugged in.

If the Infinix Smart 20 restarts only while charging, the issue may be the charger, cable, charging port, battery, or heat.

3. Let the phone cool down

If the phone feels hot, stop using it for a while.

After an update, the system may update apps, scan files, sync data, and rebuild background services. That can make the phone warm. If the phone gets too hot, it may restart to protect itself.

Do this:

1. Remove the phone case.
2. Stop gaming, recording video, or using hotspot.
3. Turn off mobile data for a few minutes.
4. Place the phone on a cool, dry surface.
5. Do not put it inside a freezer or near water.

Once the phone cools down, use it again and check if the accidental restarts stop.

4. Free up storage space

Low storage can cause lag, app crashes, update errors, and random restarts.

After an update, your Infinix Smart 20 needs enough free space to run system files, app updates, and temporary data. If the storage is nearly full, the phone may become unstable.

Check storage:

1. Open Settings.
2. Tap Storage.
3. Check how much space is available.
4. Delete large videos, duplicate photos, APK files, and unused downloads.
5. Uninstall apps you no longer use.

Try to keep at least 5GB of free space if possible.

Also empty the Trash or Recently Deleted folder in your gallery or file manager if available.

5. Update your apps

Some apps may not work properly with the new system version until they are updated.

This is one of the most common causes of restarts after an Android update. The phone updates, but old app versions keep running in the background. Then one app crashes and drags the system with it.

Update apps from the Play Store:

1. Open Google Play Store.
2. Tap your profile icon.
3. Tap Manage apps and device.
4. Tap Updates available.
5. Tap Update all.

Also update apps from other app stores if you use them, such as XStore or third-party stores. Be careful with apps downloaded as APK files because outdated or modified APKs can cause system problems.

6. Remove recently installed or suspicious apps

If the restarts started after installing a new app, remove that app first.

This is especially worth checking if the app is a cleaner, booster, battery saver, VPN, screen recorder, launcher, antivirus, modded app, or game downloaded outside the Play Store.

To uninstall an app:

1. Open Settings.
2. Tap Apps.
3. Select the app you recently installed.
4. Tap Uninstall.
5. Restart the phone.

Then use the phone for a few hours.

If the restarts stop, that app was likely the problem.

Do not install multiple “phone booster” apps. They often fight with Android’s built-in memory and battery controls, which can make budget phones less stable.

7. Boot into Safe Mode

Safe Mode helps you check whether a third-party app is causing the Infinix Smart 20 to restart.

In Safe Mode, downloaded apps are temporarily disabled. If the phone stops restarting in Safe Mode, one of your installed apps is likely causing the issue.

Try this:

1. Press and hold the Power button.
2. When the power menu appears, press and hold Power off.
3. Tap Safe Mode if the option appears.
4. Wait for the phone to restart.
5. Use the phone for a while.

If Safe Mode is not available through that method, turn off the phone, power it on, then press and hold the Volume down button while it starts.

If the phone works normally in Safe Mode, uninstall recently installed apps one by one.

To exit Safe Mode, restart the phone normally.

8. Check for another software update

Sometimes a restart problem happens because the first update has a bug, and the manufacturer releases a follow-up patch.

Check for another update:

1. Open Settings.
2. Scroll to System.
3. Tap System update.
4. Check for updates.
5. Install any available update.

Make sure the phone has enough battery and a stable Wi-Fi connection before updating.

Do not interrupt the update. Do not force shut down the phone while it is installing system files.

9. Reset app preferences

Resetting app preferences can fix broken permissions, disabled system apps, background restrictions, and default app conflicts.

This does not delete your photos or personal files. It may reset app permissions, default apps, notification settings, and background restrictions.

To reset app preferences:

1. Open Settings.
2. Tap Apps.
3. Tap the three-dot menu if available.
4. Tap Reset app preferences.
5. Confirm the reset.
6. Restart the phone.

After this, open your important apps again and allow permissions only when needed.

This fix is useful when the phone started restarting after permissions or app settings changed during the update.

10. Back up your files and factory reset the phone

Use factory reset only if the Infinix Smart 20 still restarts after trying the fixes above.

A factory reset removes apps, settings, accounts, photos, videos, messages, and files from the phone. Back up everything first.

Before resetting:

1. Back up photos and videos to Google Photos, a computer, or an SD card.
2. Back up WhatsApp chats if you use WhatsApp.
3. Sync contacts to your Google account.
4. Write down important passwords.
5. Charge the phone to at least 50%.

To factory reset:

1. Open Settings.
2. Tap System.
3. Tap Reset options.
4. Tap Erase all data or Factory data reset.
5. Confirm the reset.

After the reset, set up the phone again. Install only your most important apps first. Use the phone for a few hours before installing everything back.

If the phone still restarts after a clean factory reset, the issue may be deeper than normal software troubleshooting.

When should you visit a service center?

Visit an Infinix service center or phone technician if:

The phone restarts even after a factory reset.

The phone restarts while charging with different chargers.

The phone gets very hot even when idle.

The phone shuts down before the battery reaches 0%.

The phone is stuck in a boot loop.

The restarts started after the phone was dropped or exposed to water.

The battery looks swollen or the back cover is lifting.

Do not keep charging the phone if it gets unusually hot or smells burnt. Turn it off and have it checked.

FAQ