Anybody know how to get into a Zoom H2 microphone/recorder?

The external microphone jack on my Zoom H2 is no longer making good contact to the microphone plug. I hope that I can fix it by just bending the contacts a little. But first I need to get inside to access those contacts. Any hints?

I find it really annoying that to post my question I had to choose a DIFFERENT device because mine is not listed and there is no obvious way to add a new one.