Auto restart problem

[Apal]

I have set the timing for auto restart at 3 am. But, it doesn't auto restarts in that time. Rather after using phone and locked the screen at 10 am, it have automatically restarted at front of me (only today morning). Why it doesn't restart at that time ? I was not using the device from 12 am onwards and battery was at 83% and fulfilling all other parameters. It was running continuously for 54 hours without restarting shown, that means it doesn't restart at 3 am on its own. Also, attaching screenshot for incorrectly restarted stated by Samsung Members. Please 

help me in this regard.

Device:- Samsung M21, One UI 2.5 core October Patch.

Also, I doubt if my phone is fake or not, because the box provided in which backside is fully blank, there should be written something na like key specifications?

Also, please share the pic of the box of your M21 phone.

[帕里克]

if u got ota update than it is not **bleep**. u can check ur serial number at samsung website warranty status. auto restart is function in setting. check that setting. ur problem may be due to some software. check it in safe mode boot. if possible try reset phone ones. else u can contact customer care through this member app too.

[Apal]

It had happened once, and also when I was not using the phone.

[Apal]

Even, it doesn't even give single lag till date

[帕里克]

so for that i told u to check in safe mode for software issue

[帕里克]

settings do the same. it restart automatically when phone not in use

[Apal]

But, then why it had restarted in 10 am, rather than 3 am ?

[tx09]

I also have same phone all boxes of m21 are blank at backside so don't worry its genuine.

[Apal]

Ok thank you

[cs-member13]

Dear Samsung Member,

Greetings from Samsung Customer Support!

To resolve auto restart issue please follow below given steps:-
Go to Settings > General management > Reset > Turn off auto start.

If the issue still persist kindly visit the service center for the physical inspection of your device. To check for the nearest Samsung service center kindly click on the link:- https://www.samsung.com/in/support/service-center/

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support