I think commlinks and RCCs have effectively Attack/Sleaze N/A, not zero (there is a difference). Commlinks/RCCs don't even have the stats that would allow a Limit, thus I read it as N/A not "0 but can be raised." Hence you cannot attempt the test at all, not that you could attempt it but can keep no more than 0 hits (again, an important distinction.
Unless the GM says you can use Edge to remove the non-applicable Limit for one test, you probably shouldn't be allowed to roll. My GM doesn't like the idea of ever being able to hack via a commlink with the 5e rules and fluff for the Matrix, hence that'd be a no-go for me. YMMV; even a shitty deck can do pretty well if you focus on AR hacking and plugging directly into cameras to backdoor into a host instead of going into VR.