MIWA U9.HMD knob-HBZSP1, Lost key, Unlocking the entrance door

"Lost key, Unlocking the entrance door"

This is the entrance solution due to the loss of the key. There are two cylinders, but this time it is only the knob of the main lock.

Remove the door scope and it will be normal thumbturn unlocking, but the target thumbturn may be small. There is also a method using a CCD camera, but this time I decided not to use it and instead use a jig with a non-slip tip.

I was able to unlock it on the third time without going to the first shot.After all, it was a small resinous thumbturn.I used the usual 3mm diameter opener, but it might have been better to use an 10mm diameter crescent opener with a sharper curve that is easier to aim.