bme

i AM A COMPLETE BEGINNER SORRY

I got this nagra keys for example:

ID 6F 01
Key 0
MR

what are these numbers? what is MR?

Now on the box under Nagra I have several keys and under the above ID of N 6F01 I see 4 lines of keys.Like this




So how to enter the keys?

Do not post keys on this Forum!