Definitly!! Step 15 is basicially impossible with Step 25 and Step 7 (if you have to reseat the keyboard ribbon cable like I did [Step 15]) in place. Mine presented as dead, thankfully the battery indicator and magsafe worked. But when I reseated the keyboard cable (Step 15) I wasn't convinced so when the power butten did nothing I took a deep breath and went back in. And success was had on the second attempt (psew!).