I want to know compatible RAM for this laptop. Also where can i know those thing?
My RAM is only 4gb and has an additional slot. This make the harddisk slower too because it store some memorh on harddisk (i know its slow because i have older laptop, with 8gb ram, and it load sims4 much faster.) So I need to upgrade it to maximize the capability of other component.
Next question, there is warranty sticker placed between that RAM/hard disk place and the main cover. So I’m sure if i want to open to add RAM, that sticker might be damaged. Is this gonna void my warranty?

The stixker clearly says that but i asked on other place and they say its fine ._.
Also, any note that i should know about upgrading ram? Like should it be the exact same as the other? And how to check if it works properly after install it?
Thanks