Put it straight - I previously had CSSU Testing, Kernel-Power 50, Kernel-BFS 10 and NITDroid 12 @ kernel 06-final1 running harmoniously, but after my school shut down its schoolwide WiFi I hadn't updated my wares for 2 total months... Then today I decided to update using "apt-get update" and "apt-get upgrade"(which is same as usual) via notebook-shared WiFi (through cable) and hell, it works fine and everything was updated. I remembered seeing a lot items like osso-xxxx (CSSU related?) but no else. Then I pushed "reboot" via power menu and phone rebooted to usual Multiboot menu, but whatever kernel I chose, the NOKIA logo appears, blackens (all usual) AND after 2 or 3 secs random colour notif. LED light pops up and phone reboots. REBOOT LOOP?! (I'm sure I'm fully charged)
Now stuck in a WTF condition - phone bootable, Multiboot enterable, system almost enterable, NITDroid working as usual (strange)... any way to reverse previous changes? Any way to solve this loop apart from flashing?

[SOLVED with rescue OS]