Default [Q] Lockscreen PIN lost - USB debugging deactivated

Hey guys,

I cant unlock my lockscreen on Galaxy Note 3 anymore. No entered PIN is accepted. The USB debugging is deactivated and stock recovery installed. Unfortunatly I have important data on my phone which isnt recoverable otherwise. So my main questin is how can I activate USB debugging without access to the phone. In best case the solution is possible without KNOX void.

Thanks in advance

Nerade

Edit: I'm at least one firmware version behind. I can't specify exact version number.