In this guide, I’ll disassemble a Dell Inspiron 15 5558 laptop. Refer to this guide, you can upgrade, repair and clean your Dell Inspiron 15 5558, you also can remove service cover, hard drive, wireless card and RAM memory.
Unlock and remove the battery.
Remove two screws securing the service cover.
Dell Inspiron 15 5558 comes with a 40WH Li-ion battery, battery cells are samsung 18650, Dell part number: M5Y1K.
Under the service cover, you can get access to the hard drive, RAM memory and wireless card.
There is no M.2 NGFF SSD slot on the Dell Inspiron 15 5558, so if you want to add SSD, just replace the hard drive by a 2.5″ SSD.
Two 4GB DDR3L-1600MHz RAM.
Intel® Dual Band Wireless-AC 3160 wireless card
Samsung 1TB 5400RPM hard drive
This is my new 2.5″ SSD, OCZ ARC100 240G.
Remove the HDD caddy from hard drive, and install it to the 2.5″ SSD.