S21 Ultra phone unresponsive

[Anu777]

My phone suddenly becomes totally unresponsive and screen becomes blackout, doesn't even charge during that time. But it turns on after some time automatically, sometimes after hours and sometimes after 2-3 days. This has been happening since last 2 weeks. Has anyone facing the same issue and what's the solution for this. Please let me know.

[cs_member10]

Dear Samsung member,

Greetings from Samsung customer support.

As per your query, we would request you to kindly perform the following steps to resolve your issue.

Please check removing and reinserting'' the battery (If removable) or restart (soft reset) your device.
Please follow the below steps, if the battery is removable:
Remove back cover from the device>>Gently remove the battery>>Re-insert the battery>>Fix the back cover.

Please follow the below steps, If the battery is non removable:
Press the power and volume down key simultaneously for few seconds.

Check space availability:
Path: Settings > Device Care >Storage
To improve the device performance there should be sufficient space. Request you to keep at least ''minimum 20% internal memory free''.

Update device software (If Software update available): https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-update-software/

Reset the device: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-mobile-how-to-perform-a-factory-res...

In case the issue still occurs kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Warm Regards,
Samsung Customer Support