Won't boot "no radio"

[Phrenetis]

Ok, I flashed my phone with a ROM from the kitchen. After doing that it worked ok until I disconnected it from my pc, then it would reboot every couple of seconds. I tried a hard reset, nothing. Tried a soft reset, and still nothing. When I tried to flash back to the old radio and rom, it failed. Now I get stuck on a boot screen that says 'no radio' where it said the radio number before.

Any tips?