+We have made a local copy named "Firefly-RK3399-ubuntu16.04-20180416112819.tgz"
+in this link (http://plrg.eecs.uci.edu/git/?p=FireflyImages.git). Unzip it and you will get a file named
+"Firefly-RK3399-ubuntu16.04-20180416112819.img", which is the unified firmware.