Just a little tip here; TO REMOVE THE 4TH PIN, BEND IT UP A LITTLE, THEN USE THE END OF A SEWING NEEDLE (the end where you put the thread through) THIS WILL "LASSO" THE PIN, MOVE SIDE TO SIDE KINDA FAST, PRESTO!
I got the fourth pin out in like 2 minutes.
Seriously.
Good luck.
p.s. the needle has to be a fairly small one....