Master Lock Speed Dial Style Lock Factory Code Brute Force Attack.

[@chameleon62]

Thanks! Had a brand new lock that was out of the package and the instructions were long gone. I was halfway through the second page and beginning to think it wasn't going to work and bam! It opens. This video needs to be way more popular. Gets my upvote about a million times.

[@mariader6072]

Same! I was about to call this lock a waste of $3. Definitely needs all the upvotes

[@larrysetty8388]

Thank you for hard work. You saved me from it. My daughter decided to create a ridiculously complex code that she promptly forgot. After finding your video and watching it, I hunkered down for a long session of thumb cramping code entering. I entered the first sequence (L-R-U), pulled the shackle and it opened right up. Thanks

[@blankregistration7301]

I have not done the math, but in my experience an arbitrarily long sequence is most likely to have a shortest path equivalent sequence of 6-8 directions so you are somewhat lucky it overlapped with the factory code space, and extremely lucky it was the first try wow!. Go buy a lottery ticket.

[@DObird]

Awesome and super clear instructions with a pdf, too. Thrifted a Speed Dial for $1 today because it was missing the default combo instructions. Went a bit slower to make sure I didn't mess up and I still got to 72% around 5 minutes later. DLLU. Thanks, David

[@caseystoudemayer3927]

This was AMAZING! Someone changed the lock for our escape room without my knowledge and it was a brand new lock! Thought I was going to have to trash it. They are becoming harder and harder to find since Master Lock has discounted them. Thank you!!!

[@kirknicholsonofficial]

Thank you!! My Speed Dial lock has been permanently attached to my gym bag for like 10 years lol (because I forgot the combo and the paper it came with and was too stubborn to cut it off). Got home from the gym today, looked at the lock still stuck on my bag and was determined to finally find a way to open it -- found your video and opened it at the 53% code with your sheet!

[@blankregistration7301]

woohoo!

[@richardnineteenfortyone7542]

Mine was on the gym bag too... but only for about a month. (I got plenty of exercise shoveling snow this year) And my lock opened at the 28% code. Cause for concern, however: these locks may not be very secure if they are so easily hacked.

[@brasha78]

Money!!! Three minutes and done you’re the man thank you so much and I really appreciate how calm and collected you were when kids came into your space you didn’t lose your mind and kept it cool and that’s exactly how parenting can and should go very cool thank you so much

[@elcapitan008]

Have had one of these locks someone gave me sat around for literal years, searched multiple times for a way to defeat it. Out of the blue search again but scroll further and find your video. Method works perfect first time through (took me until the second sheet so I was worried but got it in the 90% range). Fantastic video (especially your patience with Mikey) that should be the top rated one when looking up this lock. Great job.

[@tomcummings7338]

David, thanks this worked great! It took me about a minute and 15 seconds to get the lock open. Lock was never used as the code got lost before it was ever opened. Thank you so much for posting this….

[@blankregistration7301]

Awesome to hear, Thanks

[@nomdeplume9852]

Unlocked in 35 seconds. Amazing.

[@MikkoRantalainen]

Great attack! It shows why Master should deliver this lock with 4 times up configuration and require every user to set their own combination.

[@whyme5382]

Had two locks went thru the whole sheet took me 15 minutes and only cracked one still big thanks to you 🙏 at least one is unlocked now

[@viktor4840]

I just found that Padlock style for the first time. It is so innivative! Thanks for your vid on how to brute force it.

[@mrdialhimup7027]

the lock i had was already used from years ago, i almost went through the whole sheet and finally found it. thumbs up man

[@blankregistration7301]

I love to hear about locks getting open! thanks

[@davinalynnrn]

Thank you so much. This video helped me unlock my gate so I could get started gardening. Total time was less than 3 minutes. I had already spent hours on this.

[@blankregistration7301]

Let a thousand flowers bloom. Outdoor use is counter indicated for the masters, though knollan makes an outdoor version of this lock

[@LovesToBeCreative82]

Thank you for this video it was super helpful. We had changed the combination to our daughter's lock and couldn't remember it. With the cheat sheet you provided my husband was able to unlock the lock and reset the combination.

[@swish043]

You absolutely saved my a*s. Just got a new one and followed the instructions to set a new pattern, but it wasnt working to open the lock. I figured it registered wrong somehow. LLDU was the one that did it for me. Thank you!!

[@921vrock]

Bought this lock for my daughter about 5 years ago lost all combination information lo and behold the combination that opened your lock was exact with mine I got lucky thank you

[@MalvinCascia]

It worked. Don’t give up it took me three tries to finally do things right. But, in the end the lock opened using one of the sequences at the top of page 1. BINGO!

[@savannahw9224]

Thank you so much! I needed a lock for school but I didn’t want to buy a new one and I had an old one that I couldn’t remember the code too, now I don’t have to get a new one! LOL ur a lifesaver

[@blankregistration7301]

The lock costs 9$ but the feeling of opening it is priceless 🔓😀

[@Elwyn05]

Another directional lock saved thanks to this video. Thank you very much for your amazing work 🎉👏

[@vivianovando4874]

Thank you for the hard work, we found the lost lock right when we needed it long after the move but of course forgot code and fiddle with it and many videos that without master code are useless. I did not make it past 3 minutes and opened with your method thanks

[@19wolfgang25]

Thanks a lot! Just opened mine in less than a minute! Appreciate your video, buddy!

[@vrc3022]

Thanks for doing all this hard work and for the great explanation! Literally have been trying to get my lock open for months and this did the trick. Thanks a bunch!

[@gummibear3605]

omg, i didn't think it would work but literally the second red letter made it open, i'm shocked, thank you!

[@noemiemika6414]

could u possibly explain how to follow the sheet? and how you did i

[@MikkoRantalainen]

@@noemiemika6414 Did you watch the video? When you see zero in the sheet, reset the lock (press the shackle in according to the official instructions). Then enter the combination in the sheet and pause to *pull* the shackle at every red letter. Repeat until lock opens.

[@jessicagagne6318]

Dumb question but do you pull up after each red or AS you are moving in the direction that the red font indicates? @@MikkoRantalainen

[@MikkoRantalainen]

@@jessicagagne6318 Whenever you have dialed one red move of the sequence, try to pull up from the shackle to see if the lock is already open. Did you maybe misundertood "pull up" meaning move the dial upwards? And do not push the shackle downwards because that would reset the combination to initial state (no moves entered).

[@kristovatlas]

Just cracked 2 that I bought cheap due to forgotten codes within a few minutes. Great attack. Thanks!

[@blankregistration7301]

nice job!

[@philliphealey4233]

thanks opened mine today great job again thank you ..

[@blankregistration7301]

🔓nice job!

[@lauriemartino1344]

Thank you SO MUCH for this video!!! I was able to unlock my lock in 5 tries! It saved me the trouble of having to buy a new lock. Your cheat sheet is awesome!

[@thelockpickinglebowski633]

Excellent work and easily understood explanation!

[@globaljg]

Thank you! This worked in less than 10 combo tries.

[@husseinomar2]

Thanks man, was able to open mine after i had forgot the combination

[@terraaaaah]

Dude! Thanks! I was watching and I opened mine on the combination you landed on! 😅

[@Daxlo]

OMG, your cool little guy just makes this video! You did it in one take, while parenting! Nice.

[@ROBK636]

Thank You! Dad had passed, but didn't write down or take a pic of the code. Able to get in about a min with your sheet.

[@adriancarruthers1393]

Love this video omg I’ve been trying for years to open my lock 30 seconds in your video and bam I have an open lock yessssssss this video is 1000% accurate

[@blankregistration7301]

Nice job and thanks! I love to hear about locks getting open 🔓

[@SquirrelsNestx5]

Thank you! This helped me get my lock to open.

[@NhatNguyen-jc8mk]

Thank God I found you. A million thanks bro ^^

[@NooriNoori-sq2dz]

Thank you man I really appreciated good job 🎉🎉🎉

[@yatendrasolanki2836]

Dude !!!! Love it.. open a lock in just 5th input thanks 👏🏻 100% accurate

[@TVOKDT]

Thank you! You are a genius !!!!!

[@sorimasn]

Mine was UDDL. Thank you so much, I can finally take this lock off an old backpack.

[@blankregistration7301]

🔓🎒😅

[@psychogaming553]

Bro this actuall helped me open my lock that I lost my combination to😭

[@thomashartnell7808]

Thank you for saving my lock!

[@dkim2440]

Thanks for posting

[@scrumptiousjdp]

Does it have to be cleared in some way between codes?

[@zavierbinette7559]

thanks you for your help

[@matthewschoen52]

Thanks for the video! Clearly these aren't Fort Knox, but definitely seem to do a decent job for more casual needs while allowing QUICK access

[@blankregistration7301]

Yes these are actually great locks for their intended use and when used correctly.

[@mrnmo7216]

thank you so much

[@tristynhowell9091]

00:36 the bottom combo was mine. Life saver lmao

[@janest.honore5048]

Michael, you got cool Dad. Thanks for posting

[@firedupseminarsandtraining8670]

Does this work evenif the same direction got used more than two times? For example dddd

[@firedupseminarsandtraining8670]

I guess it doesn't work for my situation because I went through all the codes without getting it opened.

[@blankregistration7301]

@@firedupseminarsandtraining8670 no it doesn't cover those cases, google for prevarikation speed dial, she has taken it to the next level.

[@firedupseminarsandtraining8670]

@@blankregistration7301 thanks

[@ZeroDayJames]

I tried both pages of codes on two separate 1500 iD locks 6 times each and it did not work.

[@bellthefluffyboi8219]

I know I'm late to the party but you see I collect keys and locks and an old family member gave me one of these cuz they forgot the code and that paper is too confusing and none of my codes work how do you understand that paper

[@saiilabo]

Thanks, it worked !

[@fade2black15]

thank you very much bro. it really works. thank you for your effort man cheers!!!

[@blankregistration7301]

Nice job 🔓

[@Equestry]

I love this.

[@arnoldwafula2674]

Thank you!

[@wheatgrowssweet]

So I followed these instructions and got it open in around 20 tries. I tried to reset the code with the shackle open but I forgot to reset it. Then I closed the lock and it won't reopen. Any idea if the combination is still the factory one or if my U-D-L-R new code got tacked on to the end of the factory code?

[@d.lawrencemiller5755]

I wrote down an 8-step code and set the lock. Failed to open to the code I set. I must have slipped when I set it. 😭 I read the instructions on your worksheet but I don't understand them. If you are still planning on an update for 6-step codes, could I offer you troubleshooting for the instructions? If I told you what I don't understand maybe you'd know what to write to make it understandable to more people.

[@blankregistration7301]

Hi! thanks for the comment. I think to really understand the lock you have to watch alot of videos on here especially prevarikations ones. But if you just want to get your lock open I will say the most common error in setting a new code is forgetting to reset before setting the new. so try to old code with the new appended. Much less common is accidental partial moves. Pull the shackle as you enter the last few moves to see if the gate is just off by a position or so due to a possible partial moves. If not, buy a new lock and have fun cracking the one you have open to look at the inside.

[@aprillynn8264]

You are amazingggg!!! I had given my combo to my buddy and he lost his phone with my text and pix in it!!fuck the buddy system! Yolo so be solo

[@ismellpnutbutter]

First try! Thanks!

[@robinbroadway2647]

So if you dont know the original combo than you cannot reset?

[@kristenseward557]

You just saved my life!!!!! I am making breakout boxes for the first day of school which is monday and the codes got thrown away. Only 6 more locks to break LOL. I am keeping record of the color, serial number and code that worked like you asked. Do you want them here or in an email?

[@blankregistration7301]

Congrats!! glad the day was saved, email me ty!

[@JaekpWalts]

Thank you

[@JailenCarodine]

BLESS YOU!!

[@eugenemartinez3977]

Thank you for your help

[@mrdialhimup7027]

AMAZING VID

[@coltmarley7503]

I have tried many many times and it hasn't worked. I even bought a new lock of the same type, reset the lock (wrote it down to follow it) and it wouldn't open!! I don't want to break it. . . Help?

[@blankregistration7301]

Try inputting old and then new combinations. The most common error is not resetting before setting a new combination

[@CindySmithPhotography]

A link for the download to your codes would be really helpful. QR code can’t be read from screen.

[@blankregistration7301]

yeah, you are right, link added to the description

[@Me-sq7wo]

It’s not working for mine? I even remembered the factory combo which was uurr. But none of these are working either?

[@blankregistration7301]

didn't think I would have to say this, but this method will not fix broken locks.

[@EscapologyJax]

Would these also work on longer sequences that were forgotten? I have two that must not have been set right because the factory code didn't work and the code we set it to doesn't work. Thanks for any help.

[@blankregistration7301]

Alot of the longer sequences are equivalent to shorter sequences so there is a chance it can work. I don't have the actual numbers now but you've probably got greate than 30% chance if you do the whole sheet. One day I will generate a 6-move sheet, or a 50% of the inner-state sheet.

[@MikkoRantalainen]

@@blankregistration7301 Is there any simple logic to follow while setting the code which would always avoid hitting any internal state that can be opened with this list?

[@notaverygoodusername]

@@MikkoRantalainen generate a very long random sequence and keep entering it in prevarications port if mh visualizer. The visualizer will show you a shortest equivalent sequence. Enter random inputs until you have a state that takes at least 7 or 8 inputs

[@MikkoRantalainen]

@@notaverygoodusername I meant is there a way to figure it out for humans? I agree that sequence with minimum of 8 inputs seems to be optimal for security but I have to use computer program to find a suitable sequence. Using the visualizer to open the lock even when gates are marked into the wheels seems surprisingly hard task for longer sequences. For attacker that is not familiar with this lock, even a transparent lock would be pretty safe because figuring out the logic to set all the gates is far from trivial.

[@notaverygoodusername]

@@MikkoRantalainen I'm sure there are math tricks or hueristucs we don't know yet. In my code I just brute force the 11 sequence inputs. I'm not sure what the code of mhvisualizer does for the move db. Point in no simple tricks I know except for looking up states in a db.

[@JepMZ]

Dude, maybe you can help me. I messed up somehow when setting up my combo for the first time. It's supposed to be right, left, right, left, straight, left, right But for whatever reason, it just won't work. I managed to accidentally unlock it again by not inputting the up input. And yet I tried resetting to the same code above and now I'm fucked lol

[@guymanueletienne1142]

TTHANK YOOOO

[@acespade1]

Hey, I managed to lock this onto a truck bolt but there isn't enough clearance to "clear" the lock so even though I know the password, I'm not able to open it. Do you know if there's a work around to resetting this? Thans

[@blankregistration7301]

TLDR: hit it with a hammer :) Thanks for making me think about this. Normally we go from a known state (reset) to an unknown (the opening state), but this would be going from an unknown to a known. I do believe there is a good sequence to brute force this condition but I haven't devoted much thought to it. If you are feeling lucky, enter the last 2 unique directional moves 5 times in a row, pulling on each last move. Each pull has a 1/625 chance of opening. After you've done that 5 times, enter a random dir and do it again. I think you should turn to destructive methods though.

[@acespade1]

@@blankregistration7301 yea I ended up grinding away at the outer metal to get enough clearance to finally reset it.

[@drtroyturner7464]

Same thing happened to me. My young ex landlord refused to be modern with keyless entry so I locked a spare care to a factory 's gate up the road. I mistakenly decided to clamp it to the flat rod that went through the gate figuring more sturdy so someone wouldn't just snip snip a thin gate square. Well that flat is snug & won't allow for clear. I moved & no longer need key. Even though these locks are now more rare & have gone up in price (after being reduced on clearance a few yrs ago) the scrutiny of looking suspicious with hammer & a non working lock is not worth the $14 aggravation. I'll just bite the bullet & pay $30 to add to my collection so I have at least 3. A cool game is telling your son the combo & seeing if he can do behind back in the dark. These are my fav locks. I have bluetooth ($100 value clearance for $15) but even they are my 2nd fav because they go dead & you must recharge to open. Has anyone ever figured out why these stop responding to correct combo sometimes? I'm guessing the track gets stripped from repeated moves so I suggested people keep combos more fluid like up down as much or side to side as many times wanted, but not both because that were the tracks get jammed.

[@MsHojat]

I've been curious: what are the chances of getting a hash collision no longer than x-1 (or x-2) when using an arbitrary random combination of length x? Namely for values above 8, like 8-12. I guess you kind of gave a bit of an answer already to larrrysettty8388, even though it's just a vague estimation.

[@blankregistration7301]

Hello! If you know some python I think you can find my ugly python code that builds an in-memory graph of the states, then you can query that dictionary to answer that question. github.com/david-miller/speeddial_research

[@davidrockey7190]

Whatever impressed me by one that has been changed and pick that one. 🤫

[@blankregistration7301]

I have decoded about five from random combinations -- using different techniques than in this this video though. Prevarikation has done it on video, its awesome, check it out kzbin.info/www/bejne/eHWchnaarqlsbMk

[@mrdialhimup7027]

LIFE SAVERRRRRRRRRRRR!!!!!!!!

[@victorvictoriano9211]

I tried it, opened it but failed to re open it again

[@jmzthree]

Thank you, I was 79% took me 10 minutes, so the chart is wrong hahahah

[@NashDiaz]

Hello! When the numbers are put it you don’t have to reset every time clicking it down twice? Do I just try the numbers without resetting it? I have 2 locks that I got from Home Depot around 2012 inmagine that, I don’t have the code paper anymore so I have time today and find you on KZbin. Thanks! (:

[@blankregistration7301]

Reset before each line. the zero means reset. good luck

[@HifiCentret]

Sadly it seems Knollan doesn't exist anymore. They're nicer than the Master as they have letters and keys on the rim and the build quality also seems a tad higher. Don't know whether or not the Master is still made. Bit it's still available on Ali Express at least it seems. Would be nice if somebody made them in stainless steel.

[@blankregistration7301]

Oh no! that is indeed sad. In my opinion Knollans beat the masters because they have false gates which complicates gate sensing attacks like prevarikations awesome technique : kzbin.info/www/bejne/j6baYWSGga2napo and they have better security screws. I think knollans are worse than the masters in overall smoothness in the feeling of operation. Also my knollans have a gap in the clamshell, Like you could stick a tool in there. Its a mixed bag but i'd choose a knollan over the master.

[@HifiCentret]

@@blankregistration7301 Yeah. Their website and everything just is dead so... I think the Knollan is just a hair higher quality - and as said I really like the lettering and numbering to help make a good combination lock - and this one is not easily decoded. Sad no one else makes a good combination lock. And the Master is not available in Europe anymore so who knows if that is on its way out too. It's true that is has flaws that you can accidentally make a combi which turns out to be the same as just a single step - but really could be overcome by an app where you put in your inteded code and it tells you if there's a shorter version of it and if so what it is to let you judge whether or not it's acceptable or not. We can agree on MasterLock. Most of their locks are not impressive and even the few good ones they have is let down by some stupid choices. Like they're not listening and not learning either. It's just dumb because many of the flaws are not hard nor raises manufacturing costs to fix. But hey even the German ABUS company also has so many mediocre locks on the menu that they give a high rating - especially their combination padlocks and all of them are easily decoded. Perhaps the best of them is the Masterlock 175 copy which after all require a special tool. All the others can either be decoded no tool or a simple piece of plastic or even paper if you're careful enough. I once contacted ABUS to let them know I think their 158 and 160 locks have far too high rating and easily decoded using a piece of paper (and how). Got no response. Then I put up a video here on YT - I believe it's the earliest dated showing how to decode the 160. As said same attack goes for the 158 and their 787 key safe as well - and other brands look alike keysafes as well. All have been unchanged for at least a decade even though I think most of them could easily have small design changes to more or less eliminate the decoding attacks.

[@giselleb1139]

some one help me my code was left left up up and now i can’t get it open

[@blankregistration7301]

Hard to say what is happening in your case, but most errors are caused by reset, either forgetting to reset when setting a new code (in that case try both old and new codes consecutively) or reset failing due to mechanical reasons.

[@rlittleworth]

Hi David. Would this work on any 4 digit code that didn’t have more than 2 consecutive same directions? I forgot my code, but know I made it 4 directions, and know I didn’t repeat the same direction more than twice. I will be showing my students this video. Thanks for cool and informational content :)

[@blankregistration7301]

hi! yes the sequence in the sheets covers all 4 direction inputs with no more than 2 consecutive. good luck

[@scrumptiousjdp]

I haven't succeeded. My son made a complex combination

[@davidrockey7190]

My point is lock is impressive they did their homework 🤫

[@Familia-Y-Life-GermanShepherds]

Hello my daughter forgot her combo Where do I download the paper with codes so i can price out for her to take to school please

[@Familia-Y-Life-GermanShepherds]

Print out 😩 auto correct

[@blankregistration7301]

@@Familia-Y-Life-GermanShepherds hello! as long as it's a factory code this should work. I show a qr code at 5:55. you should only need the first 2 sheets.

[@drincogni]

Mine behind is purple not green

[@blankregistration7301]

Ooh I want one with a purple sticker now

[@drincogni]

@@blankregistration7301 what we get here in the island of mauritius is masterlock One, the box is like what you had 10 years ago.the security level is 6 and not 5 like what u have in the video.The sticker is purple and doesnt seem to have master reset.basicly i have 5 ,4 working and was able to change the pattern while 1 i didnt do the change properly and it got locked!we get it for like 18$ US .its past mindnight here.They just started selling masterlock here like 1 or 2 years ago!

[@blankregistration7301]

@@drincogni make sure you try the old code followed by the new code, I still make that mistake sometime to forget to reset before setting a new code. Also check out prevarikations awesome technique if you really want to open up that one lock! kzbin.info/www/bejne/j6baYWSGga2napo

[@julesb1325]

Life safer lmao

[@davidrockey7190]

7 code💭

[@spicynerd644]

I went to finally use this lock I bought years ago but lo and behold it did no have a passcode I was all set and ready to trash it until I found your video. Thank you so much🥹