That's bad news, I also had a almost similar problem with my Niki, the last couple off day's, I think it has something to do with the new gui, not sure, I could only use the original rom's and the Megan 1.3 from Salvatore, I've solved it to do the hardspl again and flash the original rom that came with the phone, in my case the dutch version, not sure if this fix was the way it should be , but it worked.
Ok, to go back to your problem, if you can't go into the bootloader we have to find a bootloader program, so we can start it from the program files, and if that works than flash your original rom (that's my suggestion).
Ok I'll be back in a few minutes now search for the bootloader file.
Walter