I tried to locate a hole underneath that would allow me to put my finger into it and search around for a release button, but I was unable to find one. I also looked for some type of hole to put a nail or paperclip into it to release it, but I couldn't find one either. There are two large holes, one on each side underneath and at the back of the cash drawer that had a plastic cover over them. I took the plastic covers off and felt around for some type of button or release switch but no luck. The lock on the front has the letter/number: A6 on it. I wonder if getting a key made is my only option?
On a side note, is there a adapter that would change the 4 pin connector into a USB connector?
Thanks again for the help!