I've attached an image of 3x different boards that came from wireless access points where I've removed the large shielding pieces. Do I also need to remove the "frame" the shielding was attached to for the board to be clean or will it be downgraded if I don't remove the "frame" as well? Or can I just remove the large horizontal shielding pieces and leave the "frame"?

You’re good. That’s far enough.

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