Discuss this Topic here.
Correct, spark is a separate entity to enigma2 and is not touched in any way by those e2 teams who choose to provide e2 images for these boxes.I do not think Spark has anything to do with it, but no E2 blindscan for any sh4 receiver that I know of.
I read that there is this this image Neutrino3-MP-martii-FFTeam-24-09-2014-Sogno-GMOne-Triplex-Alien2-7162-Receiver, and they swear it works better than enigma2, not sure if it has blind scan.