I read in another thread that using an original disc should be okay.
tbh, I don't really see any logic to sony's banning methods. on the ps3 it seems rare. on the vita, it never happens. and, on the ps4, you can't sign in. though, there have been unsubstantiated reports that if you update to ofw on the ps4, after having exploited your system on 5.05, you'll be banned at some point unless you wipe the hdd and account.