Serious software detacted

[RubyLee]

I seem nt able to check for update after clicking on it & it alway prompt me

[Mogay]

backup your data first then re-flash your firmware thru samsung smartswitch from your PC/laptop

if issue still exist, just bring to nearest service center

[ChewyHero]

Honestly, u can try wiping cache partition via Recovery mode to see if it helps, otherwise, u are going to have to reflash firmware. Depends on ur model though if it supports One UI 6.1