The door is locked, how to open it from the outside?

The door is locked. You can use pliers, smash the window and find an unlocking company to unlock it.

First, use pliers.

Find a pair of olecranon pliers or water pipe pliers, hold the handle and twist it hard, take out the handle and lock cover to the left, and then knock out the lock body. At this time, you can see the oblique tongue, and then find a needle-nosed pliers or a flat-blade screwdriver to push the oblique tongue open and hook the horizontal dial. When released, it will bounce back and push the door open.

Second, break the window.

After locking the door, if you live on the first floor, you can break the window and unlock it. After breaking the window, you'd better find a special glass replacement tool to replace the glass in the room immediately.

Third, the unlocking company.

If the door is double-secured, or there is only a small lock with no keyhole on it, once it is locked, it cannot be opened from the outside. The only way is to let the lock company pry open the lock from the outside.