Why Does Your Samsung Galaxy A50 Keep Restarting?

Summary

The Samsung Galaxy A50 is one of the most popular mid-range smartphones, appreciated for its good performance, long battery life, and modern design. However, some users experience unexpected device restarts. The following discusses the most common causes of this phenomenon—from software bugs and unstable apps to hardware failures (e.g., motherboard or battery issues)—and provides consistent, practical solutions to help accurately identify the source and reliably eliminate the problems.

Introduction

The Samsung Galaxy A50 gained popularity due to its good balance of price and functionality: an AMOLED display, a solid camera system, and sufficient performance for everyday tasks and entertainment. However, even reliable devices sometimes experience malfunctions, including random restarts. This can be not only annoying but also disruptive to productivity. It typically arises from several groups of causes: software (system or app bugs, incorrect settings) and hardware (battery, buttons, overheating, or motherboard defects).

Main Issues

Sources of Software Problems

Operating System Bugs: Incomplete or corrupted OS updates, internal “Android”/”One UI” bugs, or issues after major updates can cause unexpected restarts, especially if there is insufficient free space on the system or many outdated apps are running.

Overloaded Cache and Temporary Memory: Accumulated temporary data and stuck background apps lead to slower performance, freezes, and sometimes restarts. A cluttered cache is often associated with apps that have not been updated for a long time or are malfunctioning.

Third-Party Apps: Some apps conflict with system processes (especially in newer OS versions) and, less frequently, may be harmful. In such cases, symptoms disappear when the device is booted in safe mode.

Automatic Restart (Scheduled): If the automatic optimization/restart feature is enabled, the phone may restart at a set time (usually at night). This is not a malfunction, but users sometimes mistake it for unexpected restarts.

Battery Optimization Settings: Overly aggressive power-saving modes can “choke” apps and cause instability, especially if they need to run in the background (notifications, navigation, etc.).

Sources of Hardware Problems

Motherboard Failures: Micro-cracks, deteriorating solder joints, or power circuit damage can lead to random restarts. This is a typical sign if the problem persists even after a factory reset and with a completely clean system.

Battery Wear or Damage: An aging or swollen battery, improper charging, or faulty battery contacts can cause sudden shutdowns and restarts, especially at lower charge levels or in colder environments.

Overheating: Increased load (gaming, 4K videos, hot environments) can trigger protective mechanisms, causing the device to restart or forcibly limit performance.

Defective Power Button: A stuck or oxidized power button can simulate presses and initiate unexpected restarts.

Troubleshooting and Repair Methods

Resolving Software Issues

Boot the Device in Safe Mode:
Long press the power button until the shutdown screen appears. Long press “Power off” until you see “Safe mode,” then confirm. If restarts disappear in safe mode, remove recently installed or suspicious apps.

Wipe Cache Partition:
Turn off the phone. Press and hold the Volume Up + Power (side) buttons simultaneously until the recovery menu appears. Select “Wipe cache partition” (navigate with volume buttons, confirm with the power button), then “Reboot system now.” This does not delete personal data but often removes freezes after updates.

Update Software and Apps:
Go to Settings > Software update > Download and install and ensure you have the latest “One UI”/”Android” version. Open “Google Play” and “Galaxy Store” to update apps.

Reset App Preferences / Optimize Device:
In Settings > Apps, select the menu and execute “Reset app preferences.” Also, in Settings > Battery and device care, use “Optimize now” and ensure that overly aggressive restrictions are not enabled for important apps.

Check Automatic Restart Settings:
Settings > Battery and device care > Automation check if scheduled “Auto restart” is enabled. If you do not want scheduled restarts, turn it off.

Factory Data Reset (Last Resort):
Before proceeding, make sure to back up your data (“Smart Switch,” Google account). Then go to Settings > General management > Reset > Factory data reset and confirm. If the problem persists even on a “clean” system, it is likely hardware-related.

Resolving Hardware Issues

Check the Power Button:
Ensure it is not stuck and has no mechanical damage. If suspected, a technician’s inspection is needed and, if necessary, replacement.

Evaluate Battery Condition:
Open “Samsung Members” > Support > Phone diagnostics and perform battery and charging port tests. If you notice rapid capacity drop, unusual heating, or swelling—safely turn off the device and seek replacement.

Manage Temperature:
Avoid intensive tasks while charging, do not use thick cases on hot days, and turn off unnecessary background tasks. If restarts occur after overheating warnings, the cause is likely thermodynamic.

Motherboard Repair or Replacement:
If software solutions do not help and diagnostics do not indicate battery or button issues, professional diagnostics (micro-soldering, power circuit checks) are needed, and if necessary, motherboard repair or replacement.

Summary Conclusions

Unexpected Galaxy A50 restarts are most often related to software issues, cache/memory overload, or specific third-party apps, less frequently to hardware failures (battery, buttons, motherboard, overheating). Systematically performing safe mode checks, wiping the cache partition, updating the OS and apps, and optimizing the device often resolves the issue without repair. If symptoms persist even after a factory reset and a clean system, it is likely hardware-related, so it is recommended to consult specialists.

Final Thoughts

The Samsung Galaxy A50 is a reliable and generally comfortable daily phone, and issues with random restarts are usually resolved by following the recommended software actions (safe mode, cache partition wipe, updates, and optimization). If symptoms persist even after a factory reset, it is likely a hardware failure—at which point it is advisable to consult qualified specialists who can perform diagnostics and offer effective repairs.

Sources

Samsung Lithuania. (2025). What to do if your Samsung phone keeps restarting? Retrieved from https://www.samsung.com/lt/support/mobile-devices/what-to-do-if-your-samsung-phone-keeps-restarting/
Samsung Lithuania. (2025). How to use Samsung Members phone diagnostics. Retrieved from https://www.samsung.com/lt/support/mobile-devices/how-to-use-the-phone-diagnostics-feature-on-your-samsung-galaxy-device/
Samsung Lithuania. (2023–2024). How to boot Galaxy device in safe mode. Retrieved from https://www.samsung.com/lt/support/mobile-devices/kaip-ijungti-mano-galaxy-prietaisa-saugiu-rezimu/
Samsung Lithuania. (2023–2024). How to improve phone performance / automatic optimization. Retrieved from https://www.samsung.com/lt/support/mobile-devices/kaip-pagerinti-samsung-telefono-veikim-kad-jis-veikt-greiiau-ir-nebestrigt/ and https://www.samsung.com/lt/support/mobile-devices/kaip-automatiskai-optimizuoti-galaxy-irengini/
Samsung Lithuania. (2024–2025). How to restore factory data (“Factory reset”). Retrieved from https://www.samsung.com/lt/support/mobile-devices/kaip-mobiliajame-irenginyje-atkurti-gamintojo-duomenis/
“Android” Help (Google). (2025). Factory reset / system cache clearing. Retrieved from https://support.google.com/android/answer/6088915?hl=lt and https://www.android.com/articles/clear-cache-and-cookies/
Samsung Community (EU). (2025). “Clear cache partition” (recovery menu). Retrieved from https://eu.community.samsung.com/t5/mobile-apps-services/clear-cache-partition/td-p/12338986
“Bitė Profai”. (2022–2024). Safe mode and network settings on Samsung phones. Retrieved from https://www.bite.lt/profai/saugos-rezimas-samsung and https://www.bite.lt/profai/tinklo-nustatymai-samsung
Samsung Lithuania. (2023–2024). How to reboot a frozen Galaxy device. Retrieved from https://www.samsung.com/lt/support/mobile-devices/how-to-reboot-a-frozen-galaxy-device/