I wish people would read threads and actually know what they're talking about before commenting.
OP has an
M2Z, and he already answered he has taken the cover off after being questioned about it.
@ROBERT MAVIC 55 then commented about "also removing the lock" which is irrelevant for an M2 that doesn't have one, probably becasue he has an
M1 and wrongly assumes it's the same. I point out it's irrelevant, and you go after me becasue you probably already forgot the question (asked by you in the first place!) was already fully answered.