Locked out of my room with a Securfast lock

patman99

Nice one.

Having worked in a care home I can tesify as to how hard it is to get past these locks without the right tools.

The lock goes into the door frame bu at least 20mm so is not easy to 'spring' with a piece of plastic or a screwdriver.

Not sure how the bypass tool works as you need to slide it up between the door and the seal and these normally have no give in them.

robin58

dominoman wrote: »

Woohoo! I got in!

I looked very carefully at the buttons and could see the areas around some was cleaner than others.

In the end it was C123XZ! I got it on the second attempt.

Thanks so much for all the help. Warehouse you have eagle eyes! Even now I can't see it from that photo.

Just look at the keys.

When you use the door every time you leave grease and dirt from your fingers. After a time it builds up on the door buttons then its easy to just try the dirtiest buttons in the known way these are usually set up.

There is a secured parking area near me for a set of lofts. Figured out the entry number one night when I passed it because you could see the finger dirt on the buttons.
Very secure that.

I have taken theses apart in the past. A very simple mechanism when you get inside.

The most shocking thing is you know the catch on the other side which you slide to keep the door in the open position, it is basically a ball bearing mounted on a spring to keep it in tension in a slot so it doesn't close the catch.

bsod

Alter_ego wrote: »

Actually not so many when you consider, each digit must be different to all others and the order of digits does not matter.

eg if 1234 is set 4312 etc will open it.

it wouldn't be a very good lock if there were only a handful of possible combinations.

a 1 or 12 button code has 13 possibilities (each)
2 or 11 has 78 (13!/(2! x 11!))
3 or 10 has 286 (13!/(3! x 10!))
4 or 9 has 715 (13!/(4! x 9!))
5 or 8 has 1287 (13!/(5! x 8!))
6 or 7 has 1716 (13!/(6! x 7!))
13 has 1 (13!/(13! x 1!))

or 8191 possible combinations in total which would take >65000 button presses to cycle through

Biggles

Biggles wrote: »

My money's on 123X (judging by the sweaty fingerprints by the buttons).

dominoman wrote: »

In the end it was C123XZ! I got it on the second attempt

One letter out! The X and the Z were joined by the same smudge!

Well done, Dominoman!

dominoman

Well done Biggles!! And many thanks.

I'm glad to report I didn't find any decomposing animals inside (apart from a very large dead wasp)