(picking 206) Master 4-wheel combination padlock opened - fuzzy decoding method - thanks to Ulrik
Vložit
- čas přidán 11. 06. 2016
- Usual pull-picking was not working: It does not behave like other locks with a distinct reaction on finding the gate. After testing several methods (that all didn't work) I came up with something that brings each wheel in the middle of the area where is shows the least resistance. On every path through, the position gets improved and finally the lock opens. I cannot explain why this method works, so I would love to look inside. I cannot gut it without destroying it. Maybe someone knows about pictures of the parts.
Thanks to Ulrik for sending this lock to me ('no-trick-pony_lockpicking', / @no-trick-pony )
Other combination locks: • Lock Picking - decodin... - Zábava
![[631] Master Lock 875/975 Decoded WITHOUT ANY TOOLS !](http://i.ytimg.com/vi/bfDPtt-bnAI/mqdefault.jpg)
![[631] Master Lock 875/975 Decoded WITHOUT ANY TOOLS !](/img/tr.png)
Brilliant video. Missus accidentally changed the combination. Possibly might not get rid of her now thanks to this. Thanks. 👍👍
Thanks! I've got this lock with letters instead of numbers. I've had it for years and occasionally pick it up to try and solve it. Thanks to this video I finally did it!
After months, I know I could have bought a new one but was not happy to just throw away. I watched this video, within10mins I had it open. Brilliant.
Thank you for your feedback. Glad it worked for you.
pro trick : watch movies on kaldroStream. Been using it for watching a lot of movies during the lockdown.
@Ryker Lennox Yup, been using KaldroStream for years myself =)
@Ryker Lennox yup, been using kaldroStream for since november myself :)
It works! I found this lock years ago on the street, was laying in my desk drawer and just picked it with your method! Thanks
Brilliant job, I've just get the combination for my pad lock as follows your method,
Thanks
Great video! I'd been struggling with this exact lock for a while. Had it open in a couple of minutes after watching this! Thanks so much! 👍🏼🙂
OMG this is soooo amazing!!! thank you, just less than a minute I was able to get the combination!!!! Thank you! great tutorial!!!
Thank you for the feedback - great that I could help.
Nice and clear instructions, managed to unlock my old Master lock without having to throw it away. Thank you
Cheers and thanks for the feedback - glad it helped you out.
Brilliant explanation. The locks I have contain 3 false gates and 1 true gate per wheel. I have now decoded them both. Need more locks now. Thanks Mr Potti.
Yeah, get some more locks and play - also try decoding without looking at the wheels.
Thank you for this video! I accidentally reset my gym padlock last night somehow, same model as this, and this has helped me work out the new combination. On the other hand it shows how easy digital locks are to pick😬
Thank you for the feedback - appreciate it.
Thank you for the fantastic video. I have 4 of these locks and apparently when I set one one of the codes were way off from the other 3 locks. I was about to throw it away until I just discovered this video. You saved me!
Glad to read that you had success. Thanks for the feedback.
omg .. I almost thought to get rid of this padlock but thought let's try youtube and within a few mins I was able to open the lock. Great help .. thank you :)
HERE'S THE INFORMATION YOU WANTED ON THIS LOCK. Thumbs up great video. I pick and decode locks for fun. I'm always looking for a challenge. DIRECTLY BECAUSE OF YOU I BOUGHT THIS EXACT SAME MASTER LOCK, as featured in your video. I agree it's different, I picked it EXACTLY as you had described. But if you take another look there are a number of other methods that still work such as finding the loosest wheels, not at all difficult. And contrary to your video it does have false Gates, but it's so poorly made,!!! They are there but are rather shallow and ineffective, and simply tensioning the shackle will bring you right to the correct number. It also has features that no other lock has such as that the numbers lock when the shackle is open and easy to use and to operate the CHANGE CODE POSITION. It's so poorly made by MASTER LOCK that all of its weaknesses can be exploited easily and therefore there is no reason to tear it apart. It's one of my favorites to play with. Thanks for listening and for inspiring me to buy this lock. Take care.
Cheers buddy and thanks for watching. Makes my happy to read that you have fun decoding like I. Once I made a video where I decoded many locks in a row, maybe it fun for you to watch czcams.com/video/iinsKYf5M6s/video.html
Thanks for your video. I just got open 4 locks we did not know the combination for. The best part is that all 4 were the same combination.
Thank you for your motivating feedback. Glad my video was helpful. Meanwhile I prefer this method which is more consistent and reliable czcams.com/video/iinsKYf5M6s/video.html
Thank you! I have the same lock and this worked for me. Cheers!!
Thank you for the video! I manage to unlock my for less than a minute 😊
u’re fab! i was in the same position as others, with a padlock that i didn’t want to throw away... although i was 100% sure of the combination, it just didn’t work. it was either reset by someone else or the problem came from that it wasn’t locked back in the proper position 🤔 anyway i watched many other vids that didn’t help, but this one did, thank you, u’re a legend and i now have a padlock that’s working again 😊 thank you
Thanks a lot for your kind feedback - glad to read that you had success. Check this out for a much more reliable method: czcams.com/video/iinsKYf5M6s/video.html
I have the same lock but it's only a three wheel combo. I found it very easy to find the gates by pulling the shackle and starting with the first wheel and it pops in the gate and to me it's very noticeable But with that said you taught me something. The lock was given to me by someone at my work and I did not know you could change the combo so thank you for that. Now I can play with it some more :)
Those combination lock are great fun. Get yourself one with false gates for a bigger challenge. Some are easy to decode, some not, depends on the precision and on the way it is built. Check out my playlist of combo locks. Have fun.
Wow I am impressed I have never tried opening a lock in my life I listened to your video and in less than 5 minutes I opened the lock that I got in a auction job lot .
Thank you for the great video . Im still smiling
Haha, your comment makes me smile - thank you very much for telling me your success. Great that it helped :-)
Snag is if YOU can decode it in minutes, then don't lock up anything expensive with the same lock!
Great video, helped me to open a 4 digit padlock in more or less 30 min. Thanks a lot!
Cheers and thanks for the feedback. Also try this more robust method czcams.com/video/iinsKYf5M6s/video.html
The lock (Master with 4 letters) on our shed in which I keep my telescope and accessories would not open, we tried for weeks! Same combo we always use so should have easily opened, but no luck. We sprayed with graphite to see if that was the problem, which helped the tumblers(?) move a bit more easily but still no luck. I googled "how to unlock combination lock" and your video came up, I watched it, and within 20 minutes had it open! (BTW found two letters of the combo had been changed up accidentally - maybe pushed up on lock when opening/closing who knows?) Thank you so much for posting this! Also, read your recommendations for more secure locks and will be getting one of those! :-)
Hey, that's great news - awesome success-story for you and me. Thank you so much for your feedback - appreciate it a lot :-)
After trying for a while it worked, thank you very much
hehe: I had a lock and chain from a friend who forgot his number, with the tips I opened it in less than 5 minutes! thanks! GOOD JOB!
Glad you could get something out of this video - please also check out this for another more reliable method czcams.com/video/iinsKYf5M6s/video.html
Thank you! Unlocked my old gym lock
Great - thanks for the feedback.
Thank you , . I learned something new today........👍😄 got it 1st time watching & within in 5 mins in your video I was able to open "Model No. 630D" . A brand new lock my other half had purchased a month ago and locked it unaware of # code. Thanks to your very well said video he finally can set it right and use it.......
Wow, amazing. Thank you for your kind feedback. It's great to read that my video was helpful. Hope you also had some fun along the way of decoding. Cheers, Michael from Germany :-)
OMG you are a legend. I had a "Master" brand lock and this was the only video that helped. YAY!! Thank you!!!!!!!!1
Cool, thanks for the feedback.
Great tutorial as usual. I've always problems with those combination locks. I am not persistent enough ;-)
Thank you. I was very persistent - or maybe obsessed ;-)
Cheers mate, really helpful video. Was able to get it in a about 10 minutes
Glad it helped.
Thanks, I've had this lock locked 4 years but refused to throw it away, your video just helped me unlock it! 🔓
Cool, thanks for the great feedback. Happy that my video helped you.
Modern R6 me too
Potti314 can you help me
yes, how?
yes, how?
I have been trying to find a method that works on this lock for two days. Then, I got the lock open in 10seconds with your method. Wow. Thanks mate.
Cheers and thanks for the positive feedback. Here's an even more reliable method czcams.com/video/iinsKYf5M6s/video.html Have fun decoding :-)
This method also works on the Master Model No. 643DWD which has letters instead of numbers.
Can now unlock it in anywhere from 30 seconds to 3 minutes.
It works best if you attach a rubber band to it, and then anchor it to your knee if you're sitting down.
This gives you consistent pressure, which makes it a lot quicker to decode.
Note: dont even waste your time on the top 2 wheels. you almost have to treat the top 2 and the
bottom 2 wheels as a different sets of tumblers.
Step 1. Apply a lot of pressure to the padlock. press down on the 3rd wheel so it can't move anywhere,
then rotate the 4th (bottom) wheel until you get 2 letters/digits that the wheel moves loosely on.
If you can't quite find any that are loose, apply more pressure.
If you still can't find any, mix up all the combination wheels and repeat step 1.
Sometimes if the top 2 wheels aren't in the right spot, you can get false positives.
When you find the 2 letters/digits that move loosely, you'll know. just select one of the two and move on.
Step 2.
Apply pressure to the 4th wheel now so it can't move.
Now again apply pressure to the padlock and rotate the 3rd wheel.
This wheel requires a lot of pressure on the padlock.
You are again looking for 2 digits/letters that the wheel moves freely between.
Select one of the two digits.
If you get false positives on this one, or they all have about the same feel, you'll want
to mix up the top 2 wheels, and repeat step 2 again.
Step 3.
Now hold down on the 1st wheel, so it can't move...
a lot of times this wheel likes to move around, especially if the bottom 2 wheels are correct.
Apply pressure to the padlock, and move the 2nd wheel, sometimes you'll know this one
right away, as it may click into place and the padlock may give a little.
i've also had it where it was between another set of 2 combinations as well.
step 4.
Apply pressure to the 2nd wheel so it cant move,
This one also likes to move around with the first wheel.
Apply pressure to the padlock again, and rotate the 1st wheel, if all goes well, it should
pop open.
If it didn't open, try shifting one of the bottom wheels over to the other position that was loose.
If all else, repeat step 1 and 2.
if you still can't get it, just mix up all the combinations and try it again... when you
finally start to feel the "loose" areas, you'll know you're on the right track, and it gets easier.
i was so confident with this method, i mixed up the combinations several times without looking
and decoded it pretty quickly.
it requires a lot of consistent pressure on the padlock, why I dont recommend using your finger,
because you have to keep getting a better grip, and you might not feel where the wheel goes free.
If you don't feel any resistance on the bottom 2 wheels, just move the top wheels over until the bottom wheels are firm. the goal is to make the wheels hard to move, and then the "loose" spots, are where the correct combinations are. the 2nd top wheel usually will click into place, and the top wheel is generally always firm.
if you accidentally guess the top wheel correctly, the bottom wheels show little resistance, making it hard to
decode. thats why you sometimes have to rotate the top one, until they have resistance again.
Thank you for the detailed description of the process - will try it step by step and check if I can reproduce your method. Cheers :-)
When i first saw this video, i didn't realize you did many others... so when i seen you cover
the lock with the blanket, i thought you may have been trying to pull a magicians act, and replaced the lock with a different one. lol it was funny because i was trying to identify the scratch markings on your lock to verify it was the same one. youtube is full of stuff like that, fortunately we have genuinely knowledgeable people like you around.
Not sure if you have another video for this, but... you wouldn't happen to have any recommendations for a lock, would you? lol i noticed you like to get attached to specific locks, especially if they give you a little grief. lol
***** Thank you :-) Haha, no mystery involved here, just trying to feel and interpret the feedback. And my videos are not meant as prove for anything. They should entertain and give instruction on how to do it and to see how easy / hard it is to overcome such a mechanism.
i have that exact same lock and i just managed to unlock it thanks to this video! many thanks!
Glad I could help.
Nicely done mate !
Thank you.
It works! Thank you great job 👏
I forgot my combination 👏👏👏👏👏 thank you bravo
I just also opened mine with extrem shackle pressure - so I found the correct gates very fast!
OK - yes, pulling hard enhances the feedback.
Yaaaaaah done it ...massive thanx to your tutorial
Cheers and thanks for the feedback, also try this czcams.com/video/iinsKYf5M6s/video.html&t=250
amazing. i tried to open this lock for ages and used a few different strategies without success. with your method i had it open in 2 minutes.
Thanks for the feedback, great to read that it worked for you. I even have a more reliable method that you can find in my decoding marathon - video 468.
Potti314 thx! Will check it out.
Have fun and let me know if something need clarification.
I have the same silver 4 digit lock. It was giving me a really hard time today. Wasn't opening the shackle at all. I will try again with this method tomorrow. Hopefully it works.
I got movement on the shackle on all 4 wheels just a little on the first 2 and enough to get the lock to spin open on the 3rd but not enough to reset and the 4th was just try one till it popped thank you I'm very pleased to have learned a new a new skill
Glad to read that you had success :-)
I did it but not how you did… basically I just started from the top and found the number what didn’t turn under pressure then moved down to the next worked pretty must first time!! Thankyou!!!
Was it with tensioning the shackle
Super! I have to try it with my locks
Thank you. Depending on the way the locks are built, you have to apply different methods. Please let us know how it worked out.
Great video problem sorted 😊
Many thanks for this video very helpful 👌👌👌😀
Glad it was helpful.
Thanks I unlocked my grandpas liquor cabinet whisky time!
I've found an alternative way to decode these, or at least the 643D I just got.
Turn each wheel to the position where it wiggles most freely.
Do not use any shackle pressure.
The detent is solid on every position of the wheel, but the axle the wheel turns around feels loose when it's oriented correctly.
The wheel wiggles back and forth in the body of the lock, pivoting around the detent (left of the wheel).
I've decoded it a few times now after having blindly set an unknown combination on it.
I have no idea if this still works on locks that have more wear on them, as I opened the package on mine just a few hours ago.
Do you mean something like this? czcams.com/video/zRNhfNjse0M/video.html
Let’s go, just cracked my first lock! The numbers were 1749 - however it a little different to crack as it was already open and not locked!
Its work ! I unlocked my lock in 2 minutes after watching your video!
Thanks for the feedback :-)
Thank u, it really works 👍🏻👍🏻👍🏻
Thanks. That's great to read.
At the 3 minuet mark if anyone skipped to that they may think you were up to something rather rude 😳😛😉😂😂😂😯😊
I have had one of those I had to get open and the way you have shown was the way I overcame the lock🔓👍👍👍🤔
I even tried to feel for a gate down the side of the wheels but couldn't manage that either😞
Thanks for sharing 😘😘👍
Yes it's tricky and I still have no idea how it's done to cause this kind of feedback. No sure what you mean with minute 3, but I saw a mistake: I said 9 but meant 0. Will make a note in the video.
+Potti314 meant 3:21 to be precise😂😂😉😊😛
Ah, OK I see. Yes to see only this would probably be very impolite in a picking video ;-)
I got mine open while watching this. A real easy way to pick this lock is to pull on the shackle try moving the second one down from the shackle...If it moves freely, move the tumbler closest to the shackle to the next number, and try moving the second tumbler again. Keep doing this till the second tumbler gets hard to move. You just figured out the top number. Now go to the third from the shackle and try moving it until it gets hard to move, you will be figuring out the second tumbler. Repeat until you have them all done. I think I could easily pick this lock in well under a minute. Kinda sad, but fun. Take care.
Thanks for the tips; here's a bunch of locks picked in a row with all sorts of techniques - czcams.com/video/iinsKYf5M6s/video.html - have fun :-)
thanx worked .....loved your video though .....this one really helped me ....thank again
Cool - happy it worked for you. Thanks for sharing your success.,
Thank You!!
Does this mean you have successfully opened your lock? If yes, thanks for the feedback.
Thank you sir!
Thanks. It worked for me.👍🏻
Cool - great to read this kind of feedback - thank you.
Thank you so much🙏
Thank Bro that helped me a lot
Cheers - great to read the the video was helpful.
Not working… i have even cheaper 5$ ABUS 3 digit lock and 6 years im trying to open it and its not opening at all.
When i pull up the shackle the first the first disc moves heavy on all numbers and second less heavy but still heavy and last disc is loosely spinning and i get no click on any of the discs at all… I want to open and use it not to break it. So what to do?
I just managed to do this with a Cocraft 400BC which is probably a rebranded Master lock. However I can't change the code on mine. Thank you!
Cheers :-)
thank you sooo much i am in a shared accomodation but the ladlord is strict and put locks on the boiler and electric meter boilers gone down and needed the code thanks to this video im in cheers potti314
Thanks as long as all was legal. Only pick / decode your locks or locks you have explicit permission to do so.
I have this same lock, however the shackle is stuck in the 90 degree position that you use to reset the combination. It turned like this in my gym bag and changed the combination on its own. Should the same tricks in this video work when the shackle is in that position? Been trying for 20 minutes with no luck.
How do you choose which side between the two stops to use? Try both?
Yes, try both ;-) But I found a better method. Check the binding order - on mine it's 1 through 4. Then (taking mine as an example) turn the first wheel at one digit at a time and every time test the second wheel. At the first wheel's number where the second has no free spot, the first is in the correct place. Continue with 2 and 3, and so on. It's very reliable on mine. Good luck.
Potti314 i decoded this lock with your method yesterday. Someone gave it to me.. he had locked it open and accidently changed the code. Worked like a charm. The Guy was a bit spooked by how fast it opened :) I told him to go Abus if he valued his belongings :)
Wow, congratulation - that's amazing. Thanks for the feedback :-) If you're concerned about your valuable, don't use combination padlocks at all: czcams.com/video/eNhKRSqncYs/video.html
Probably true. I watch Bosnian Bill a lot, so I know that. But If you're gonna use a combination lock, Abus is pretty impressive.
i have a similar lock it was in my bucket of locks i to was having real trouble unlocking it i was just not getting any feedback and the wheels apart from 1 seem to move freely all the time. that was of some help to me though i think its going to challenge me as its my first combination lock and as you no im a neewbie. great vid and thankyou
Maybe try indirect decoding. For every number of wheel #1, quickly spin all other wheels and see the effect. That digit on wheel #1 that causes other wheels to bind is probably the right one. Then continue from that.
thanks, it worked perfectly!
Good to hear, thanks for the feedback.
Really cool, I've not managed to open this one :D
Thank you. I took me quite a while to deduce that method from random openings. Will you test your Master lock again?
Hi mate. My ABUS 165/40 was nowhere near as easy as yours to decode. Had been locked on a shed for 9-10 yrs and never used. Took a while to open so brought home and dropped it in a friends sonic tank for a few hours and rinsed it out with WD40. Now works a treat. Still find it hard to get a shim aside the wheels tho'. Good locks.
For future use, try this method czcams.com/video/iinsKYf5M6s/video.html&ab_channel=Potti314 Very reliable.
GREAT VIDEO BY THE WAY
Thank you.
Just saved me a lock. Thanks
Lock picking is like knife collecting, just cuz you like knives, doesn't mean you like going around stabbing people. But its nice knowing you have that ability when you need it. XD
It handy to have these skills to help out friends.
@potti314 - I have this lock and the combination was changed while the lock was open. I cannot close the lock to attempt to decode it. Is there a method to obtain the code while the lock is in an open state? Thanks in advance.
I have a four digit combination lock that is in the unlocked position and I can't lock it as I have forgotten the code. How do I find out the lock code this way around?
I have the same problem
I can’t get it to work
wow. impressed... this really worked. thanks a lot.
Great feedback - thank you :-)
Thank you so much ... 🙏
You're most welcome.
Thank you, I was about to throw my lock away. It was locked and had forgotten the combination. Using your method, I opened in about 2 mints! You are awesome!!!
Thanks for the feedback. This is even more reliable czcams.com/video/kAlBM6UdOjM/video.html
Sorry, wrong link. This is what I meant czcams.com/video/iinsKYf5M6s/video.html
Potti314 this method took me a total of 20sec. Thank you
Thank you bro. We were locked out of the medication fridge at work and we were able to open it because of this video. We dont know who changed the code tho. It must have been the devil because it was 7666
Great - thanks for the feedback. Happy your were successful :-) You beat the devil - nice.
It looks like once it's decoded, the wheels may be set to "half" positions (not right on the number where it crosses the line on the front). Am I seeing that correctly? I am working on a lock that has been locked without the shackle being seated in the groove (so off to the side of the body of the lock).
I have seen half positions only on false gates of other locks. But it may happen that after pulling out the shackle (after successful decoding) the wheels "jump" a bit and turn a 1/2 position. Then check at which whole number, left and right from the half one, the shackle can be pushed in again.
Your lock is locked up with the shackle not it the neutral position. Usually a little cutout in the ring on that side, where the shackle stays in the lock body, prevents this from happening. However with bad manufacturer tolerances it might happen. Can you rotate the shackle around? If yes, the choose the position of the cutout in the ring that is used for changing the code and perform the usual pull-picking technique. If you cannot turn the shackle, pull it at the current angle and then (once decoded) try to turn it back (the wheels might turn along). Also check out this method czcams.com/video/iinsKYf5M6s/video.html
Brilliant I cracked it.....BUT...I can't remember it now to close it...do I just reverse what I did..as been trying for 30 mins now
You could have filmed it ;-)
My lock shackle was locked outside and number was moved so now I cannot bring the shackle round into position to get number decoded thanks for anyhelp as I have 3 the same position
Aaaaaaaaaand just as you finished your video, I got mine to open.
Haha - very cool :-)
Have this exact same lock and I was trying this method and was able to pop it open one minute before the video ended. Talk about interactive.
Haha, pretty cool. Congratulations :-)
Potti - I believe each wheel has at least a false gate (mine seems to) and all I do is pull on the shackle and rotate wheel 1 to 4 watching for and feeling for shackle bounce. The shackle moves very positive when you slot in a gate (false or otherwise)
Yes I also believe it has false gates all over. Its a great lock to play with. But recently I bought a new one and it did not have false gates at all - very disappointing.
Damn! I have this lock, just bought it. I messed up with setting the initial (own) code. I watched this video, and opened it before the video ended. Lol.
Haha, very cool. Thanks for the feedback.
Now I am not so sure anymore about the quality of this lock, though. :/
Yes, you shouldn't really rely on combination locks of this kind.
after trying mine for 5 minutes it's unlocked thanks
That's an even better method czcams.com/video/iinsKYf5M6s/video.html. But thanks for the feedback.
Thank you!
You're welcome.
Thank you Potti314 for another fantastic video - you have really clear lock picking videos, and a friendly voice! You have inspired me to learn lock picking & also to start my own lock-picking youtube channel.
That you a lot for your kind words. Happy to read to I am source of inspiration - I'm subscribed ;-) Look here the very same lock picked with the indirect method more reliable czcams.com/video/iinsKYf5M6s/video.html
Oh I am very honored to have you subscribed to me! Thanks also for the link to the more reliable method. I'm learning a lot from you and your fantastic videos. Combination locks might be my favorite, because no tools are needed. Thank you once again from New Zealand. :-)
What if you have a lock that's unlocked but you lost the code? Is it a different procedure?
I have this lock but it's stuck open. How would you suggest to hack it
Please how to set to open lock ? I have an open lock but I do not know a code. thank you
Sorry for the late response - seems I've overseen it. You can checkout this video czcams.com/video/kAlBM6UdOjM/video.html hope it helps.
And if a lock is opened but I dont remember the code. How do I reset it to use it again ?
I have this same lock only it's letters and I lent it for my sister to use at the gym and now the bottom spinner thing is stuck and won't turn to open it. I already know what the combination is because it's mine. I don't have my packing and instruction since it's a lock I got a while back. Help. I can't spin it to fix it. It's already opened the lock but just stuck and unusable now.
I have a similar lock which is open but I can’t close it, as I have forgotten code, the wheels all spin easily no tension. Can you help please.
I just answered you on the other video. Try with different pressure on the shackle and see it the feedback on the wheels change.
I have that lock but I it is open and I Lost the combo so I can't close it and you can't change the combo with it on the wrong combo I tried this and it won't work any suggestions?
Push down instead of pulling up to create the tension. It works. I've done it.
Hi - I found that using one other method that you have shown previously - where you feel for "lose" wheel solved my problem with this lock. But you have to feel really carefully in order to get it correct. I tried the method you show here first - but after long time without luck - I tried the other solution and within few minutes it was open. So you might want to try that solution.
Thank you for you feedback. I'm happy that got your lock open with the other method. But that's actually an old video and meanwhile I studied these locks much more extensively. In my marathon decoding session I used the method with testing the influence of the next binding wheel - works absolutely robust czcams.com/video/iinsKYf5M6s/video.html
many have reported this lock resetting the code by itself from what they set themselves. It happened to me last night and had a go to find its code it reset to. The first two numbers had decreased by 2. The last two numbers had increased by 1. Clearly two pairs of wheels are working together; So if this happens to you, using the video technique not far from the code you originally set it to, should find what new code it set itself to open it fairly easily. I only use it as a practice lock now.
I had this also on other locks that the combo was changed by itself. Burg Wächter is such a candidate. I even heard a discussion in a hardware store where a customer complained that he had to cut open a lock as the given combo was not working anymore. For the master lock you can also apply this technique czcams.com/video/iinsKYf5M6s/video.html
What if I don’t know a correct number and lock is already opened. Is this same process with your video?
Check this out czcams.com/video/kAlBM6UdOjM/video.html hope it helps if the lock is locked up in the open state.
You're a life saver
Great to read, thanks for the feedback.
I have the same lock, but somehow, someone has managed to lock the shackle down outside of the body of the lock, so it hits the side of the lock when rotated & won't go over the hole. I don't know how this happened. Putting in the last know combination won't release the shackle. Any ideas?
Did you try pulling on the shackle to decode the lock?
@@Potti314 yep. I kept it in the 90 degree position while pulling on the shackle, but no luck. :(
Thanks bro it helped me a lot🎉🎉
Thank you - great to read.
Hi, I have a 643D blocked in open position but I don't remember the code, do you have a method when the lock is open ?
Try this czcams.com/video/kAlBM6UdOjM/video.html Hope it helps.
I've found an alternative way to decode the 643 (and possibly related models) with no shackle pressure.
When a wheel is set to the right number, it rattles. That's it.
Try each wheel, one after the other, and find the position where it wiggles most freely.
Do not use any pressure on the shackle.