I'm the dumbest idiot on this hemisphere

Bought a Thinkpad E14 last week

Wanted to upgrade my diskspace by inserting an older HDD.

Watched some videos on how to open it (using a plectrum of some sort)

Unscrew, insert plectrum, go around with some audible clicks.

When opeing I see some black plastic thingies on my board... I fucking stripped all the plastic clips clean off.

I'm ashamed and in tears and now own a thinkpad with a slit in the front.

Hopefully some of you find this amusing.