Samsung S9 problems after usage of 4 years

[rushilspmp]

Bought Samsung S9 on September 2018, updated to Android 10. But after the usage of 4 years I got some wierd problems -

(1) it starts to restart itself and drains all the battery from 90 to 0 I don't know what's the problem. 

(2) Another problem is sometimes I use it automatically turns screen black and reloads to lock screen without pressing power button 

(3) another thing after restarting either manually or it restarts automatically it sticks at Samsung logo and have to force restart it to boot 

Also I tried every possible solution wiping cache partition, booting into safe mode, turing off auto restart, clearing storage and removing files and even changing up the battery and installing original Samsung battery in it but problem doesn't end. 

Help me with this problem !!

[sudhakar35gm]

Just run the phone with default apps with junk apps (google, google photos, google tv and music etc) in the force stopped and disabled mode.

Give it to the Samsung authorised service center

[S23UtimateFan]

Too many Bro's not enough he's lol . 

Seems like and you should 

keep in mind that phones are often dropped or impacted in other ways . 

While the exterior screen and everything seems fine.  The shock itself could have put a micro crack in main circuit board or loosened a component , this would manifest in the behavior you describe,  it would  make it unreliable in a sporadic way.  There is no way to test for this.  

[Sid_Karna]

Tried factory resetting, since it's an old device? If yes, then try to roll back to Android 9, if possible.

Anyway, I consider you lucky for being able to use it for 4 years. These days Samsung flagships like the s20plus aren't even lasting 2 years.

[AGalaxyuser]

That's very sad. Flagships should last over 4 years or more. We expect a better quality in flagship phones as consumers paid more money than usual.

[rushilspmp]

Yep tried factory data reset but doesn't worked.

[cs-member11]

Dear Samsung member,

Greetings from Samsung customer support.

Thank you for sharing your concern. We acknowledge your query and apologize for the same. And please follow the easy troubleshooting steps which might help to solve the issue.
Kindly use a genuine Samsung charger.

Note: We always recommend using a genuine Samsung charger for charging your device.
There are two methods to disable the auto-restart function
Method 1

Please follow the below steps:
Step1: Navigate to the app's screen and tap on Settings.
Step2: Tap on General management.
Step3: Tap on Reset.
Step4: Disable Auto restart (if enabled).
Step5: Auto-restart disabled.

Please follow the below steps:
Step1: Go to "Settings"
Step2: Tap on "Battery and device care"
Step3: Tap on Three dots
Step4: Tap on "Automation"
Step5: Disable "Auto-restart at set times" if enabled

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

Thank you for writing to Samsung.
Warm regard,
Samsung customer support