This works with almost any type of lock: Cost $0.
- (optional) lubricate the lock with all purpose oil or graphite powder. the lighter the oil the better.
- get a similar key that goes in. just find a friend with a ulock. key will not be damaged (neither the lock)
- insert key and keep applying pressure as if you were going to turn it to open the lock, and releasing the pressure. keep doing this over and over during next step.
- get a small hammer and gently knock the key. as if nailing it INTO the lock. several times. keep doing it. does not loose your temper and apply force. gently.
eventually, the key will turn!
the Technic is called Bump Key
.
Bonus information: lock-picking is a nerd past time with several tournaments in the hacking community. If you want to learn more look for the MIT guide to lock-picking
. Yes, that MIT.