crwdns2935425:014crwdne2935425:0
crwdns2931653:014crwdne2931653:0

You're almost done
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After this it is time to once again clean the part and the board, test it with your multimeter (the 2 legs to the back should have no continuity between each other until the sim tray is present. You can just test the switch with a needle or preferably, by inserting the SIM card.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0