The Panasonic Lumix DMC-G7 is an entry-level mirrorless interchangeable lens camera released in May, 2015. The camera has a 16MP resolution and is capable of 4K video capture. The model numbers are DMC-G7 in most of the world and DMC-G70 in Europe.
@mayatiz looks like it is fastened with some screws and snaps in. Replacement parts (used) are available every now and then at places like this. You can find some decent disassembly instructions on here