Using some way to set flag 40:0(using calcsys, or ASM), you can create an endless loop of ERR:MEMORY messages. Under calcsys, enter FLAGS, then press [6] 12 times. Then, press[5],[0],[CLEAR],[CLEAR],[CLEAR]. You'll need to hold down any key other than [CLEAR], [DEL], or [ON] during a long battery pull before the calc finally ramclears. TO NSPIRE USERS:THIS CAN AND WILL BRICK UP YOUR CALC! THIS MAY VOID YOUR WARRANTY!!!