I don't have the Glo, but I found some videos talking about taking it apart. This one is for the HD and just uses clips to keep the back on:
https://youtu.be/O7FuyPwc7Iw
I found another video that doesn't specify HD or not. Since he didn't specify, I'm assuming it's non-HD. It's also held together with clips and not glue. I won't link to that one since it's not very good. But, hopefully, the HD one is valid for the non-HD.