HELP need S-7 help

Help, I am stuck at work with a S-7 300 that is locked up in a program that will not allow me to get out. I do not remember the sequence to do a full reset on the program. Every time I power down and restart, I am in the same loop.

How do I do a full reset. I remember a particular sequence required by siemens to do a reset.

Daveasap

Do you mean Memory reset "MRES",

Hold on MRES for 3 secs, then release and after a maximum of 3 secs hold it in MRES for at least 3 secs