Need serious help

I have installed a new theme using the application loader. My BB restarted and is now in an infernal rebooting loop. I have tried everything:

ALT-CAP-DEL
Removing the battery for 2 hours
Using the JL_Cmder to wipe and reset

I just can't communicate with the damn thing. It reboots too quickly. The second I put the bateery back in it just goes on and on again :(

I am about to do a very hard reset with a hammer