1. First use a screwdriver to loosen the two bolts on the gusset plate on the inner side of the door; 2. After the two bolts on the gusset plate on the inner side of the door are loosened, you can loosen the gusset plate, connecting rods and the outside of the door. Remove all the handles of the doo

What to do if the anti-theft door lock is broken 1. Change the lock core The anti-theft door lock has a lock cylinder inside. If the anti-theft door lock is broken and you don’t want to replace the entire door, you can use some tools to disassemble the lock and find the lock cylinder inside, which i