opening NMS 8245 case help needed
Only the two screws close to the top of the nms8245 should be removed.
Next to the ones underneath of course.
But, there still are clips between the seems, holding the top secured to the bottom.
If you have fingernails, try and carefully squeeze them in the seem next to the power button and work your way down.
Do not use a screwdriver.
Please be very careful, it is 30+ year old plastic ! 
The 3 leds are connected (duh) with a rather short cable, so if you have succesfully released the cover DO NOT lift it too high !
