Jose Gustavo Abreu Murta

Existem dois adesivos em ambos os lados.

The pentalobe screw size is 1.2 mm for Macbook Air.

Thank You, Ted.

Same problem of mine. Samsung service tell me that mother board is failled. And is very expensive to replace mother board.

Buy another notebook.

SSD disk is together with Hard disk (inside).

Alex, I dont Know if you can use diferent Part Number. It seems like diferent versions of Part Numbers.

But I suggest you to use same Part Number.

No, I do not know where is a reset pin of BIOS.

Try to disconnect NVRAM battery.

Wait 15 minutes and reconnect again.