Very glad you got into your safe!
I have a B.O. Greenleaf Model 6120 electronic lock.
I had trouble with it for months and was blaming it on my mild dyslexia and would have to open the safe the day before i planned on using a gun because sometimes it took 30 or more min for me to open the thing.
And i was thinking as you now believe, in that the lock would not let me enter the wrong code more than ?? time and then go into a delay.
However i discovered that my Model (6120) will "Always open on the "Master Code"".
I had owned the lock past the warranty and Sargent Greenleaf would not replace it.
Of course now i have NO confidence in electronic locks and replaced it with a dial lock that i do not like because dyslexia affects dialing too,
Now may i add,,,???
When setting a combination on a dial lock there is a number that was listed in the instructions to stay away from apparently because mechanically it can confuse the metal parts,
well there are more than 1 troublesome sequences and guess who discovered the other one??
And how do i know there are not 3 bad sequences, because i would have found the 3rd, That's how!
To qualify that statement;
A few years back before i had my plow truck i had to shovel out the shooting position at the spot i do qualification shoots for my permit to carry classes.
So the evening before a winter class i set about shoveling through the plow berm and struck a large chunk of concrete in the berm, so i moved about 6 ft and dug in again hitting another chunk so i mover again and hit a third peice! Totally frustrated i set up on the driving lane and had to walk through the deep snow the 21 ft to my target.
In the spring i was interested in seeing how big a mess was at my shooting spot and found that there were only "3" chunks there!!Today my plow easily clears out the whole spot with plenty of parking for my small classes.
And if any of you are not aware of it, if your safe is at all worth its value it will have a "Re-Locker" and you could trip it if any meddling is done and then the safe may very well have to be Pealed to enter!