To use all the features, you need to activate the software. In case you
use MOBILedit Basic or similar license you need to activate phone as
well (this is not he case for the Enterprise version). The "Activate" button will appear green in this case.
Connect the phone and
you will be asked to activate the phone. You do not have to activate the
device but you will not be able to read or write the device content.
Once activated you will be able to see the list of all activated phones for your license and also the number of remaining free slots.
you activate the phone you can not deactivate it. If you want to use
more devices you have purchase a new activation slot for a lower price.