Hello guys!
I have a Samsung galaxy s8 mobile but it does not properly charge.
I don’t understand what’s this problem. Please tell me how to fix this problem.
You do realise, this is a design forum? Perhaps try a quick google search.
https://eu.community.samsung.com/?category.id=uk&profile.language=en-gb
Seems like a spammy question… incoming link in 3…2…1
LOL 
Anyhoo… this is not a phone repair forum .. but since I have had them for years .. get a new battery.