What could have caused this damage?

HPDV6

Honorable
Feb 10, 2014
10
0
10,510
Looks like someone took a screw driver to the contacts for this part of the DIMM slot. How does one manage that?

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bVoDoGN.jpg
 

HPDV6

Honorable
Feb 10, 2014
10
0
10,510


That slot doesn't work.

lesson here: don't buy used refurbished electronics from aliexpress