If you slip a really thin screwdriver under the pin from the connector side (not the wire side) there is a small tab at the back you need to lift up. The pin then slides out the wire side of the connector. Should all come out really easily. If you need any force you are doing it wrong.

(list 6284, Mk1 S/N 00299 4GB blue [for sale]. Mk2 S/N 080000094 26GB blue)
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(list 6284, Mk1 S/N 00299 4GB blue [sold]. Mk2 S/N 080000094 20GB blue)