Dw 6600 module movement

Hey guys picked up a 6600 and was wondering if it's normal for the module to move on the inside of the case when the buttons are operated, the illumination button is pretty stiff too, few photos attached to see what you guys think


Sent from my iPhone using Tapatalk

One other thing is the Japan 0 on the front but Korea h on the back? Anything on that would also be appreciated


Sent from my iPhone using Tapatalk