One: How to fix the u-shaped glass door lock that is installed incorrectly.
Method 1
Use a pencil to apply lubricant to the key, then slowly insert the key into the lock while gently wiggling it up, down, left, and right. If it goes in, try opening the door.
Method Two
If the lock has already rusted, apply a small amount of sewing machine oil to it and let it soak for a while. Then, insert the key and apply some force to disengage the latch.
Method 3
If none of the above methods work, we recommend using a hammer or a wrench to break open the U-shaped lock; or selecting a more forceful lock-opening tool that resembles the lock hole, inserting it into the U-shaped lock hole, and using a socket wrench to attempt to open the lock.
Two. Can the key for the u-shaped glass door lock be re-issued if it is lost?
If the lock mechanism is not complex, you can hire a professional locksmith to re-key it. However, if the lock mechanism is complex, the cost of re-keying will be high, and it may be more cost-effective to break the lock and purchase a new one.
Three. If the U-shaped key is lost, how to open it?
There is a gap between the U-shaped ring and the locking mechanism. First, prepare a small metal plate that can fit into the gap between the U-shaped ring and the locking mechanism. Then, find the end of the locking mechanism that allows it to move, insert the metal plate into the inner side, and then press the metal plate downwards to successfully open the U-shaped lock.