key
in the hq
you get a magnet
first while your still in Dr Gs office turn, click on the huge magnet and the password is key then you go to the ice burg and look out in the ocean. Use the magnet to get the spring.
disable the giant magnet in mission 3
You go to the Iceberg and use the magnet to get the springer that's frozen in ice.
If You Mean The Epf Mission You Open The Magnet With Your Wrench Then Put The Paper Clip In The Magnet Box
By putting the paper clip
Dismantle the giant magnet on the roof of the building.
Next to the Gadget room and the lock code is key.
You get the magnet blueprint from Herbert's desk before you leave his cave.
In mission 3, you need to short out the power box on the roof.
oh i went on there and i think its in the forest but im not sure ill check again