A more controlled way of remove the bluetooth antennae: lever them gently off. The closer you are to the centre pin, the more force you will exert there, instead of wasting it bending up the board. You already have the tools - the putty knife & the spudger.
Put the putty knife gently under the board on the side of your non-dominant hand, and then the spudger under the board on the side of your dominant hand. Gently lift the handle of the putty knife and apply constant pressure. Then gently push and wriggle the spudger under the other side with your dominant hand and push constantly forward. The further you push forward, the more upward force you will apply.The antenna will pop up before you get the spudger all the way under, and it will only rise a few mm when it does.