[Elecraft] Need a locksmith with the K3

[Gary Smith]

I've inadvertently activated a feature I need to undo. Last night I 
was making changes with config and it may have happened at that time 
but I'm locked on a frequency and can't seem to change it. When I 
move the sub receiver frequency with dial B, it shows me the voltage, 
time, PLL1, PLL2, temp and so on. The tell is the lock showing in the 
upper right corner of the LCD display above the mode indicator.

I'm looking in the manual but haven't found the answer yet. 

What do I need to do to get unlocked?

Thanks

Gary
KA1J