[technomancers] don't use DNI from trodes or internal datajack
Did I miss this being put in a book?
The only thing a decker need DNI for is to enter VR. He can hack just fine from AR by just using a cyberdeck and an image link (but virtually all deckers get a data jack, if for nothing else the noise reduction, and if you have a datajack you already have DNI). Technomancers does not enter "VR", they enter a "trace".
I can't find anything that reference that Technomancers need any to use technology to interface and control stuff in the matrix. Quite the opposite;
SR5 p. 214 The Matrix
...and technomancers, who have a downright weird ability to interface and control the digital world without the aid of technology.SR5 p. 216 Matrix Jargon, living persona
The mental “organic software” that allows technomancers to access the Matrix with only their minds.SR5 p. 216 Matrix Jargon, technomancer
A person who is able to use and manipulate the Matrix without hardware.SR5 p. 218 Personas
...although technomancers are a sort of device-less persona.SR5 p. 223 Technomancers
Technomancers are able to interface both in AR and VR without the aid of a sim module, image link, or any other electronic devicesSR5 p. 235 Persona
Technomancers have a living persona not attached to any device. A technomancer’s persona exists in the Matrix as long as they’re awake, unless they deliberately jack out. When a technomancer compiles a sprite, the sprite has its own persona, too.SR5 p. 249 Technomancers
Technomancers are metahumans with the mysterious (if not mystical) ability to connect to and manipulate the Matrix without the aid of technology.SR5 p. 249 Technomancers Life
What their brains do—and plenty of researchers would love to know how this works—is learn the basic Matrix protocols, so that they can see the icons of the Matrix the way gear-based users see them. It’s like learning a language for them, and once they know it, technomancers have trouble imagining a world without that virtual vocabulary. It lets them see the icons and AROs laid over the world around them, and allows them to drop into the trance that is the technomancer version of VR.(there are more)
because if you just find an exposed stretch of cable then you need the data tap to bridge it into a wireless/wired connection
(but if you find a device then you cut out the data tap and just plug the cable from your cyberdeck directly into the device for a physical direct connection)
Or you plug in a data tap into a throwback device, a device that is wireless OFF (because it is wired?) and then you turn the data tap wireless on to access the device wireless. But since SR5 want to push deckers into physical proximity of devices in order to bypass host ratings I am not so sure this will also give you a direct connection. Then again, Hosts only exist inside the matrix so a throwback device or device that is wireless OFF can never, by definition, be slaved to a host in the first place....