Auto restart

Dear Samsung member,

Greetings from Samsung customer support.

We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same and please follow the easy troubleshooting steps which might help to solve the issue.

There are two methods to disable the auto-restart function
Method 1: From the home screen swipe up or down to access the App Screen > Setting > General Management > Reset > Auto Restart > To Turn OFF auto-restart slide the slider toward the left.
Method 2: Go to 'Settings'>>Tap on 'Battery and device care'>> Tap on Three dots>>Tap on 'Automation'>>Disable 'Auto-restart at set times' if enabled

If you are facing this issue after installing any new application then uninstall that application.
Navigate to the Apps screen and tap on Settings>>Tap on Apps>>Tap on the desired app>>Tap on Uninstall>>Tap on OK

Reset settings: From the home screen, click on Settings>>General Management>> click on reset and then reset setting.

Please visit this mentioned link to resolve your device heating issue: https://www.samsung.com/in/support/mobile-devices/how-to-prevent-the-overheating-of-your-galaxy-device/

The phone touch screen could stop working due to physical damage.

Physical damage: The touch screen is broken or damaged. High temperature, cold, moisture, magnet, static electricity can all damage touchscreen of Android phones.

Restart the device:
Note: If you use the Fingerprint security feature, the phone will require your backup password to unlock after rebooting.

Press & hold the power key>>Restart>>Restart

Remove the memory card: Unauthorized files in the card could cause the device to perform slow, please remove it and unmount it for safe removal.

On the Home screen, tap Apps >> Settings >> Device maintenance >> Storage >> More option >> Storage settings >> SD card >> Unmount.

Insert the ejection pin into the hole on the tray to loosen the tray
Note: Ensure that the ejection pin is perpendicular to the hole. Otherwise, the device may be damaged.

Step2:
Pull out the tray gently from the tray slot.
Step3:
Remove the memory card.
Step4:
Insert the tray back into the tray slot

Note: Please note that do not remove the memory card while the device is transferring or accessing information.

Doing so can cause data to be lost or corrupted or damage to the memory card or device.
Samsung is not responsible for losses that result from the misuse of damaged memory cards, including the loss of data.

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to us.
Warm Regards,
Samsung Customer Support.

1. Settings 》Apps 》tap 3 dots 》Reset app preferences

2. Settings 》Device Care 》Battery 》Background usage limits 》
* Deep sleeping apps 》select all apps
* Sleeping apps 》select all apps

3. Settings 》Apps 》
Android system Web view 》Tap on 3 dots 》uninstall update
Android system intelligence 》Tap on 3 dots 》uninstall update
Chrome 》Tap on 3 dots 》uninstall update

4. Playstore 》Storge 》Clear data

5. Update all apps

Don't buy Samsung phone, it creates problems through updates and heavy charges through service centers. I am also facing same issue