Question about GEV Shark

When it is opened, there is a little metallic loop that you can see. you have to pull vertically from that loop, it is connected to the magnetic plate and it will lift it. it takes some force.

Once you've opened the top part with the key, then a small circular metallic loop shows up and you have to pull it.

You can see it from the in the 2nd picture GEV Shark

If i remember well I used the key to remove it