File backup always have boot0/1 and other main file ( 29GB), like me after i backup copy file hetake to SD and run RCM to boot into CFW and it no need any boot0/1.
I have a same your issue. It not brick it's just boot you into something like RCM and just press Power Button about 30 sec it will off. You can boot hekate to go back 7.0 and wait for next FW patched.
i'm trying to restore my backup (FW 6.1.0) from 7.0 by using SX OS and after that i will try to boot into CFW and installing FW 6.1.0 that i downloaded from internet Source. If it work i will let everyone know.