Is it here

try to... maybe... read the comments?

i dont think we have that here

No English translation? https://mangaonelove.ru/manga/smartfon-i-chehol/

nope, "smartphone and case" are not here, I also think we didn't have it here.

Also, based on the art style, I think the author is "阿闷aman"

it not on this website but you can find it in Spanish here: https://lectormanga.com/library/manhua/43177/telefono-movil

I tried to find it but there aren't any english version :(

What's the original language?

I think it's Chinese(?) since, as far as I know, the author is Chinese