Also, if you have to break through anything that is held together by glue or have to remove the entire motherboard, forget about adding RAM or an SSD. If the manual tells you that the memory or storage drive you want to remove are soldered onto the motherboard, you can't upgrade.
In most cases, you can get to the laptop's innards by removing some screws and either opening an upgrade panel or removing the entire bottom surface. The maintenance manual should tell you how to open the laptop and replace these parts.
