?

[yaksa]

What should I do?

I can't visit the Samsung service centre 

[Samsung_Expert]

Dear valued customer

Thank you for contacting Samsung Levant support 

may we know if you have recently downloaded a stock non official firmware or visited a non authorized service center?

[yaksa]

no i didn't ..
this update is since 10 jan and i just remembered that i didn't update it ..
the update failed so i asked here ..i don't download any stock ... etc or anything from unknown source

[Samsung_Expert]

kindly try to connect your phone to a different WIFI network 

if that did not work then kindly try to download Samsung smart switch pc suit on both your pc and smart phone and connect your phone to pc through usb cable and open the app on PC to check for available updates 

https://www.samsung.com/us/support/owners/app/smart-switch

otherwise kindly refer to the nearest authorized service center in your country 

[4T4]

This happens if you root or abandon the basic system services