need help removing the right cover cap of my HM series

[greenistheway 0]

Hi I need help, Im trying to remove the right cover cap of my MH series to replace the motherboard but when I unscrew the screws the cap stay like attached and doesnt wanna come out, and I dont wanna force it because Im afraid of breaking parts . Any help?

[HybridThread 14]

Use a 3/16 socket and unscrew the threaded bolts on each side of the serial port. Note that the metal cover around the black plastic port may slide off. It's fine, just replace before you put the cap back on.