Hi! just bought an MK3 second hand, but since the previous user already used the serial, i can't access the software
can anyone give me a hand?
All such issues are handled exclusively by N.I. Account Support
Contact N.I. Account Support with proof of purchase and a picture of the serial on bottom of device and explain the situation .
Quote Matt_NI : All you need to know about License Transfer
In case that you need guidance contacting support : How to contact NI Support and How to get in touch with our Customer Care