GV18.QDJ695 with large thumbturn cover Lost key, Unlocking the entrance door

"Comes with a thumbturn cover"

Lost key, Unlocking the entrance door. In your declaration, it was stated that it came with a thumbturn cover. The difficulty of unlocking increases depending on the type.

When I checked with the camera, it was a large thumbturn cover. It is a deep cover with a distance to the thumbturn. This type is quite troublesome. Until now, this type would be cylinder breaking and unlocking.

This time, I finally unlocked the lock after adjusting the type of opener and the tip jig several times. It still requires quite a bit of skill.

However, there will be issues with this type of unlocking method in the future. I always feel that the force vector is a bit unreasonable. The special camera cable was also damaged, so I have to think about it a little more and make improvements. Let's fix the cable again.