To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. Then, check what number you’re at, add 5 to that number, and write it down. Next, set the dial to that number and turn it counterclockwise until you hear it click again.
How do you open a combination with 4 numbers?
TO UNLOCK ON A TRUE FOUR NUMBER COMBINATION
Starting anywhere, turn the dial right (clockwise), stopping when the first combination number comes to the opening index the FIFTH time. 2. Turn the dial left (counterclockwise), stopping when the second number comes to the opening index the FOURTH time.
How many combinations does a 4 digit lock have?
There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code. Berry analyzed those to find which are the least and most predictable.