First, confirm that you can see the tip of each and every pin slightly poking through its corresponding EESeal® pinhole (if not, complete step 3 before proceeding). The EESeal® can be fully inserted and permanently seated by simply mating the connector pair. Do not use your finger or any tool to seat the EESeal®, doing so may cause damage to the EESeal®. Now check the EESeal® to ensure it is flat at the bottom of the connector, with no folds along its edge or interior. It should appear like it belongs there. If you notice anything unusual, please contact us.