Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: locking code???

Just received the safe and cannot seem to record a security code. I open the safe with the key. I have both kept it exactly that way or have used the key to close the bolts...and then I ..push the red button and the yellow light comes. I put in my code plus the # sign. Then I try the code with and without the # sign. Neither way am I able to open the safe. Has anyone else faced a similar problem? What might I be doing incorrectly? Other than this, the safe seems fine for what I need. But, I need help with installing the code.