How to remove metal shield

[ian-s-mcb]

I am trying to recover from a broken SPI flash that I did yesterday. I found recovery instructions here [1] and here [2], however, I can't figure out how to remove the metal shield on the Printed Circuit Board.

Below is a photo of my board. The black tape doesn't come off easily and I'm not sure if it will still stick after I pull it off.

Could someone point out how the metal shield is released? as400 mentioned that there are "micro clamps" on the board but I can't find them.

[1]: Wiki page on SPI - https://wiki.pine64.org/index.php/Pinebook_Pro_SPI
[2]: Forum post by as400 about SPI - https://forum.pine64.org/showthread.php?tid=9059