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  • How to unlock a 4 digit combination lock without the code

    . Dec 07, 2016 · Combination locks use rotary dials to unlock when in a specified sequence. Just reset the combination: Set the dial to 000. The door should be open for processing the programming code. The typical combination lock has a combination dial that is attached to a spindle. Tip Question Comment. This eliminates the common problem of lost keys. If there is one, set the lock to its current combination. Or go to Home Depot, rent a bolt cutter and have it open in no time. Are combination locks secure? Yes Check the top, side and bottom of the lock for a reset hole. May 24, 2006 · Now what you do to figure out each combination is this: place the first digit of each of the three dials to 9. Most combination locks use a wheel pack; a set of wheels that work together to 'know' the combination. Oct 10, 2013 · How to open a 4 digit combination lock without the code? I have a padlock stuck on my bag. 1) Start by turning the dial to the right a minimum of 4 turns and stop on the first number. It is more expens 4 number re-programmable mechanical digital lock that is made in the UK - no batteries needed. These steps can help you open a combination lock without a code, but should only be used on your Here in this content, we are giving you some practical steps which will be very much helpful to open a 4-digit combination lock without placing a code. Set it at "0" and check the final loose wheel. Turn off the device: Press and hold the Sleep/Wake button for a few seconds To do this, you have to first set the lock to the current combination. The 4-digit design enables up to 10,000 possible combination codes. The combination locks are available in sizes from 20 mm to 50 mm. secure the locker. Step 3 – Locate the Reset Press preset #2 - four (4) times for second digit in code. All Stack-On safes come with a default combination code ‘159”. 83 percent of passwords can be cracked using the top 20 About Screen Lock . NO NEED TO LISTEN FOR A CLICK  1 May 2020 Learn how to lock pick a combination lock without the number. The lock cannot be reset unless it is in the open position. – MooseBoys Apr Other answers point out that it can be fairly easily defeated even without a picking tool. Scroll the dials to the 4 digit code previously set by t 30 May 2019 Padlock Input the combination on the padlock below and click on "Unlock?" to test your For each of these challenges you will need to write a computer program to work out the padlock code (3-digit number). Learn how to recover the combination of a Mar 12, 2017 · Example 2 — Opening a 4 digit bike lock in one trial This is much much simpler than the latter. what is used for school lockers) are different. Cutting. You will find the code with the lock on the sticker. If you're looking for a WAY more secure alternative to keep your bike safe check out the FOREVER LOCK  9 Mar 2020 THE LAST NUMBER WHEEL WILL ALWAYS CLICK ON EVERY OTHER DIGIT. Combination locks are used for a variety of purposes, from school and gym lockers to securing items within the home. There a Our Lost Combination FAQ provides answers and support to help you gain access to your lock. The lock must be in the open position to allow the user to set their own individual code. Once you've cracked the code, it takes only a minute to reset the combination to a three-digit number The lock ships with the combination of "000". LOCK; BIKE ACCESSORY; HOME KITCHEN; OFFICE; AUTO ACCESSARY; ELECTRONIC ACCESSORY; Support. I wrapped the lock around a chair (pictured) sliding the cables apart increases tension in the system. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. Never open combination locks that do not belong to you. Resettable combination locks have a combination that is assigned by the owner of the lock. You will hear another double Aug 20, 2018 · Hold the body of the lock so that the numbers face away from you. Make sure the digits are centered across the middle of the lock assembly. Turn the shackle 90° so that the Jan 02, 2019 · To cycle a combination lock ingame by one digit takes about 3 seconds for each number. So if you have one anywhere, get rid ASAP. To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. Turn latch anti- clockwise to OPEN position. Is there any way to Apr 18, 2019 · The only way to unlock your iPhone when you forget the 4-digit passcode is to remove the screen passcode completely. Pull on the shackle until you see the wheels turn. Details. You then press a small button (normally using a ballpoint pen) which frees the numbered thumb-wheels from the locking mechanism (currently in the open position). 5 out of 5 stars . Insert either the manufacturer-provided reset tool or the end of an unfolded May 19, 2016 · I’m always amazed at how easy it is to open up some combination locks, and this one is no exception. I think my record is 14 seconds. Quality The lock can be unlocked without the app by entering the Primary Code, the current Temporary Code or the Backup Master Code on the For security reasons Master Lock will not provide lost combinations if the lock is attached to anythin Our value 4 digit mechanical combination locks are ideal for use in schools and workplaces. ALL YOU REALLY HAVE TO DO IS TURN IT UNTIL THE NUMBER LOCK OPENS WITHOUT THE CODE. Hold the lock with the latch at the top and the dial facing you. Aug 25, 2007 · A 4 digit bicycle lock will have 10,000 (0000-9999) different possible combinations. Nov 27, 2019 · Part 1: LG Lock Code Bypass With Password-Free; Part 2: How to Bypass Screen Lock on LG without Password-Effective; Part 3: Locked Out of LG Phone by Force-Free But Data Loss; Part 1: LG Lock Code Bypass With Password-Free Whichever the lock type of LG phone, just enter the password/pin/pattern or put the finger to bypass LG lock screen. Aug 30, 2017 · Combination locks are simple to open provided you have the code. 2 Rotate the knob to OPEN position. It's not the end of the world, but is a bit of a pain having to press ok all the time. this lets you feel the shape of the discs better and decide when one of the teeth isn't pressed against steel disc and is just hanging out in open air. As you apply a force as if you are trying to open the lock, turn the disk that is the closest to the Disconnect the USB cable from the iPhone, iPad, or iPod touch, but leave the other end of the cable connected to your computer's USB port. 25 Aug 2017 This method is for combination locks without false gates which are generally cheaper locks. Master Lock is a popular manufacturer of combination locks that are opened using a turnable dial and a pre-selected numeral code. And no&n I've devised a new attack reducing the amount of work down to only 8 combinations to crack any Master combo lock, and have simplified the process. Americ 11 May 2020 This guide will help you reduce 64000 combinations into only 80 and teach you how to crack a Master Lock the steps above correctly you will notice that all of your remaining numbers end with the same digit, except for Fosmon TSA Approved Luggage Locks, (4 Pack) Open Alert Indicator 3 Digit Combination Padlock Codes with Alloy (TSA) APPROVED LOCK]: Allows your luggage to be inspected by the authorities without damages to your lock or bag. As a matter of first importance, you should string your length of rope through the circle on the lock and crease it into equal parts around the shackle. Multilocks can be stored with the wheels placed on the shackle (the curved, silver part of the lock). For example, when the first number has the correct digit, you'll notice a small gap between the first and second slots. However, please note that, when you remove the passcode, all the data on your iPhone will be deleted as well. Tear the sticker then. (Clockwise or so the numbers are ascending) *Note: If there is 1 long beep after entering the code, the lock did not recognize it and please slow down. Turn the dial left 4 times until the first number of the combination (20 ) aligns with the opening index and be sure to stop on (20) the To do this, you have to first set the lock to the current combination. Q. Method 1: Cracking the Code of Combination Locks; Method 2: Creating a Shim for Combination Locks; Method 3: Using the Serial Number of Combination Locks Aug 30, 2018 · There's a way to crack the code of a combination lock when you've forgotten it. Mar 31, 2020 · How to reset a Nest thermostat if you have forgotten the 4-digit pin code There are times when you set up a Nest thermostat with a security password, whether you are a parent trying to keep the kids out, or, you are a landlord and don’t want renters to play around with the Nest. If you've forgotten your combination, or for some other reason want to get past a Brinks number lock, this tutorial shows you how to do it. If he is successful with picking the lock open, the safe should open with the turn of the handle. Choose to set the code and enter a three digit pin that will be known only by you. If you get, what you think, are the numbers try moving all wheels one click to the right then back and one click to the left. Release buttons and radio works. Disk 3 does not need any of that since by simply rotating it, the lock will open if you are on the correct combination. you need tension to press the teeth of the shackle against the lock discs. If your combination consist of three digits then you probably have a three wheel combination. Learn how to crack a combination lock in seconds with no tools. Make sure to maintain tension on the shackle or cord while decoding the lock. This lock picking technique is used for opening locks with a keyway and is the most difficult of all the methods described here. Use the reset tool that came with the combination lock and push it into the hole on the side of the lock chamber. Emergency re-opening key and re-setting button to allow finding "forgotten" number codes available. A 4-digit or 8-digit code can be set. Crack the lock open quickly and easily to find the number code. Store the 3-digit and 4-digit lock in the locked position. The 4 digit lock has 10,000 combinations. 1 Turn the dials to the previously set secret code, e. This principle is the binding force. Once open, locate a red button on the door and press it. It is quite big and has no logo or serial number on it. Turn the dial at least 4 times to the left and then stop at the first number. The page responds with the first digit of the combination and two possible digits for the last digit. Pull the shackle up. Second number: ________. As you do so turn the dial nearest the computer. It should work for combination locks or wordlocks. Without the need for keys and the added risks of losing and replacing them, these locks are also cost effective. There is a knack to it so have patience and good luck. As you spin each wheel to the correct number, the bobby pin will slide down a little more. If something has broken in the bike lock, there might be no way to open it by manipulating the locking #1 Picking. However, it was (too) easy to strike it with a steel bar and hammer to open (and bend) it. No Apr 08, 2020 · Everytime you land on the Profile page, there’s a padlock icon below your name showing that it’s now locked. Instructions: Sample Combo 20-40-60. Inside the lock, the spindle runs through several wheels and a drive cam. You will hear a double beep. The Type A Cam Lock or the Type B TLS 4 digit combi lock 4NCDL Click to Locks for Lockers. 2) Turn the dial to the left passing the second number twice, stopping on the third time. First number: ________. Expanding a bit, 1234, 0000, and 1111, make up about 20 percent. With “Set-Your-Own” combination locks the user is able to define their own combination when the lock is open. 2. As the padlocks are secured by means of a 3-digit or 4-digit number combination that can be set individually, they are ideal for use in the leisure industry as there is no need to carry a key. When the wheel sticks or catches, move to the next wheel and continue through all the wheels. 8 … To open a new lock box for the first time: Move all 3 digits to 0-0-0. COMBINATION LOCK - 4 DI Shop 4 Digit Combination Lock, Code Padlock Use for School Locker, Gym Padlock, Employee Locker, Hasp, Parking Lock, Fence(2 Pack). If you've forgotten the combination for your lock, try this a How to open the 3-digit TSA approved combination lock found on suitcases by most popular brands including Samsonite, American Antler and American Tourister are easy to open without damaging either the lock or the case and without any Results 1 - 16 of 2000+ ZHENGTU Bag Lock Combination Number Locks for Door Password Key Home Digital Finger Padlock Deal Security Smart 4-Digit Safe Pin Hand Bag Shaped Combination Padlock Lock (SILVER-2pcs). This feature is different from the Hold switch in More detailed instructions: Turn the dial Left (counter clockwise) to the first number 4 times Turn the dial Right (clockwise) to the second number 3 times Turn the dial Left to the third number 2 times Open a Combination Lock on a Floor Safe. If it's locked, you will have to use bolt cutters to open the lock or call a locksmith. Image Courtesy: Pinterest. A hardened steel head/tail pin and 6’ coated, galvanized steel cable ensures superior strength and deters tampering. Some times when the numbers lock up, they lock up one place away from the mark and have to be advanced or retarded one digit. Warranty; Refund and Exchange; How to Set & Reset Puroma 4 Digit Jan 03, 2012 · The following instructions apply almost all 3 wheel combination locks. Turn the hook of the U-shaped ring counterclockwise 90 degrees until the notch Roll numbered dial down until you reach your desired 3 digit combination. Before I explain how you can unlock a phone without knowing the security code, I will like to share this short experience of mi Just be careful not to go ripping through them so fast that you pass the right combination. The method here is to tug at each end until you see a gap form. To set a combination lock, place the dial at 0 to begin. And once the bobby pin is all the way To open a standard Group 2 or Group II Combination lock with a dial. Breaking into a low security lock is easy (and thus why it's the subject of a googolplex number of Youtube tutorials made by mischievious prepubescent boys). Move on to the second tightened wheel, continuing to hold the side latch in place. 4-Digit Combination lock Steel Padlocks (4 dial combination for enhancing To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. With this free app for phone security you will be able to lock up your phone so it won't reveal your secrets! Download Combination Safe Lock Screen free of charge today! May 02, 2020 · Remove the two screws which comprise the inside part of the assembly without disturbing the device. All wheel packs are all designed around the same principle. All you need is a bobby pin. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set If your combination has 4 numbers (N1-N2-N3-N4):. This trick also applies to combination padlocks - especially STERLING brands. Click in for Puroma 4 Digit Lock Also, be mindful of the process required to lock/unlock your lock and reset the code. Step 2. Simply Pull the lock away from the laptop and keep applying pressure. Download and install this Samsung unlocking app on the computer. Page 3. Turn it back to the lock position. Good, now continuously hold the little button that releases the latch in the position that will open the case once the proper combination is inserted. These instructions pertain to dial safes that have a 4 digit combination. Jun 21, 2017 · This type of decoding works on very specific locks. 26. When an iPod is locked, you must enter the combination to unlock the screen. Set the code, went to unlock and it wouldn't. But this feature is available in some specific keypad door lock with code models. Sometimes we still come home with change and don't want them lost. Pick and enter a new 6-digit code. That Instead of coming with a preset code, these types of locks are designed to allow the owner to set a combination of their choice. Watch the video for full details, deconstruction, and a sneak peak at my robotic combo Hi Nicky, the only quick way to open the padlock without the code would be to cut through the shackle. In my last few phones, after entering the correct 4 digits, it just unlocked. In the Apple Support Site, Apple notes that the "Screen Lock" function: Allows you to set a 4-digit combination to prevent someone else from using your iPod while it is not attached to a computer. ("0000" for the 4-digit version) If your lock has been used for a game, set turn the number dials to the last set combination. 8- 8-8-8. If you have  4 Jun 2020 How do you open a briefcase combination lock without the combination? 49,823 Views · How do you open a Originally Answered: If we forgot the code of a 4- digit combination lock, what should we do? Assuming you don Without a Code. Jan 17, 2021 · Step 4 – When all the dials are correct if you are still pushing the unlock button or pulling the shackle the lock should open. Next, connect your Samsung phone to the computer with a UBS cable. Slide the bobby pin down towards the lock wheels. If each action takes 3 seconds, you will have it opened in worst case scenario - 500 hours. So it 4. Rotating combination locks are relatively simple security mechanisms that can be unscrambled. In this article, we are going to go through all of these tried and tested methods for opening a sentry safe without a key or combination. Forgot or lost the combination to a suitcase? Instead of prying open or picking the lock of a basic combination pad, find the numbers and recover the combination without ruining the lock with the trick tip in this instructional video. Turn it 90 degrees in either direction. This guide will aid you in reducing that absurd number to only 80 combinations and instruct you on how to crack a Master Lock in 10 simple steps. As you rotate the dial the last remaining digit needed for the code will match up with the other two you had previously figured out and the shackle should open. Useful if you forgot the code. The Jun 08, 2017 · If the lock is unlocked at the time the combination is forgotten, it's much simpler. You can start with any digits, but it just makes sense to start at 1. After the numbers are pushed in the correct sequence, you only have to turn the deadbolt to the position on which the door would unlock and then open. Press preset #3 - six (6) times for third digit in code. Get all of the same digits to line up at the starting position. Most of these locks use the same procedure and are the most common type used on quality safes. Lock. 1. Sep 26, 2017 · A combination lock is a type of padlock that uses a unique series of numbers called a combination to open the lock. Next, set the dial to that number and turn it counterclockwise until you hear it click again. 4. You Here you may to know how to unlock 4 digit lock. 13 Apr 2018 Even if the attacker doesn't crack your code, you don't want to encounter them making an attempt. When you hit the right number you will feel the lock move or slacken a little. The light signifies a window for you to input your new combination code. There are 10,000 combinations possible for a 4- Bought this around three weeks ago from B&Q having moved. It is the one I used for the latter lock and also for the example shown in Example 2. Turn latch anti-clockwise to OPEN position. but if you can recall even 1 or 2 digits of your original code, you reduce this down to 1000 without the use of a key. Apr 28, 2015 · Kamkar then made a third observation that was instrumental to his Master Lock exploit: the first and third digit of the combination, when divided by four, always return the same remainder. In order to cycle the combination lock to the correct number could therefore theoretically take 50 minutes. Note: This item is eligible for FREE click and collect without a minimum order. But add a combination number to a lock and your lock-picking life gets much harder. This video is a great demonstration of the technique. ("0000" for the 4-digit version) Turn the number dials until the side of the lock shows “000”. Definitely not recommended. You'll need to exert some pressure on the lock's latch – enough so the dial can turn, but not so much that it spins freely. Remember or note down the code somewhere else. Set the wheels at the combination you've chosen. Start at 0000, then 0001, advancing by 1 digit each time, until the correct combination is entered. Handing over Combination. (1000 x 3 /60) And you're saying you have 2 locks. See full list on wikihow. Don't suffer from a bad memory ever again, or for the more devious minded, break into that briefcase you've been eying. Enable the unlock sound to hear a real like clicking noise every time you set the password. Pull up on the shackle to open the lock. Those kinds of locks would have a numbered buttons panel at the top which are programmed to be pressed in specific order for the door to be unlocked. This method is for combination locks without false gates which are generally cheaper locks. Fitted with a patent pro Good anti-theft function, which can ensure your luggage safety, 8 digits combination password without using key to open, Designed for Travel luggage, cabinet, iron gate, tool box, locker, etc,1 8 Digit Password Padlock, With a steel shac How to use and re-set 4 scroll mechanical combination lock using master re-set key. Word lock (Use letter for a lock, use Wordlock technology like using the combination of vowels, and consonant found on the spinning/ rotating letter dials, you can choose the four-letter to lock your luggage with this lock, this lock is light and easily readable). Common “Set-Your-Own” combination locks are the Master Lock 175 and 176. How To Unlock A Sentry Safe Without A Key. Sep 20, 2012 · You can crack more than 10 percent of random PINs by dialing in 1234. Push the shackle down (outside of the lock). The problem with key locks is that keys can easily be misplaced or lost Jul 14, 2020 · Check the tightness of the other two wheels; if they still feel loose, click the zeroed lock to "1" and feel the other two wheels again. Combination locks are typically found on school lockers, bicycle chains and personal safes. There are two basic types of combination locks: those with multiple dials and those with a single dial. Repeat for the other two numbers and its open. If you have a lock that will open immediately when the latest four digits match the combination you may reduce this a by entering a De Bruijn sequence. The opening of the multi-dial lock is more manageable than the combination lock. 217. to/2BDLI4VHere is a better bike lock that is more Open a Combination Lock on a Floor Safe. Keep in mind that in order to reset a combination padlock, the lock needs to be in the open position. e a combination lock with three digits and a combination lock with four digits. The problem with key locks is that keys can easily be misplaced or lost Re: How to unlock 4-digit combination padlock. Press preset #4 - two (2) times for final digit in code. 3. If you found this helpful, please like and Subscribe! ThanksHere’s a link to a similar lock: https://amzn. A combination lock is a common security device that uses a series of letters, numbers, or other symbols as a personalized pin code to lock/unlock the shackle. A simple button allows the user to set their own pin code and change it at any time, whilst the innovative code finding function allows emergency access in the event of lost or To choose the best combination lock for your purposes, think about what you need to keep secure—and where. Then turn the most resistant wheel and listen carefully f 12 Mar 2017 But before we begin, here is the principle you can use to open any digit combination lock. to open one of these padlocks without. Now have a look at the method below: all in here about; how to open a padlock. The video above from Samy Kamar shows how you can crack any Master combination lock within Oct 16, 2018 · Usually, the user has to enter either a 4-digit or a 6-digit code in the right order to get access through the door. If you forget the combination and can't find where you stored the information sheet that came with the lock, you have a couple of options. If you know the combination of the lock, you can open the lock using a standardized procedure based on the type of lock. Pick up 22 Dec 2020 For a pair of reliable combination locks, you can't go wrong with this two-pack from Puroma. This way, the combination that it was last set to will open the lock and you won't run the risk it accidentally being reset in transport or with students fiddling with the lock. A combination lock and a combination dial lock (ie. Simply tap/click it, key in the easy 4-digit PIN, and you’re in. Press and hold "Scan & RDS" buttons for about 3 seconds until "SafE" is displayed. 6. Aug 13, 2020 · The other option you have to open the master lock all you need is a 30cm long rope and the combination lock you wish to open. The compact padlocks come in five different colors, and they open via a four-digit code that you can choose yourself. Set the combination and release the U-shaped ring. The key supplied Public Personal. May 11, 2020 · A standard 40 digit Master Lock has 64,000 combinations which would take the average human about 180 hours to crack by using random combinations. If your lock is attached to something, you will need to call a locksmith for removal. Then enter it and choose the " Unlock Android Screen " option. To set the combination for a new lock box or reset the combination for an existing lock box: While open, set the combination to your own If you attempt to do that without previously registering your safe after purchasing it, you'r 27 Jan 2021 How do I unlock a 4 digit combination lock? Jiggle the pick tool quickly until the lock opens. 3-digit or 4-digit. Set the desired code. In order to UNLOCK. Remark : For Step 2, remove the cam should it obstruct the swap button. com How do you unlock a 4 digit combination lock without the code? If you forgot a bike lock combination or the digits to a padlock with a dial, you can try to reset it. I Sep 07, 2018 · How to Open a Four-Digit Combination Lock. Step 5: CONGRATULATIONS! 7 Sep 2018 With all the passwords, usernames and entry codes needed to be remembered as you go about your day in the constantly-changing technical world, remembering the code to a combination lock can be tricky. The locking mechanism will be on the left-hand side. Just check out this page for our handy keyless combo instructions. Type in the current 6-digit code (for new safes present the code is 1-2-3-4-5-6). Console Vault can show you how to open a combination lock if you ever forgot the code. Then spin the wheels slowly, from top to bottom. Turn the shackle at a 90 degree angle from the lock position. To unlock bike locks using this approach, you need a tension wrench (to be inserted in the bottom of the lock hole) and a lock pick (to be pushed into the top of the lock hole). If you ever forget the combination to your bike lock, here's how to open the lock—without any tools required. A yellow light comes. Then, check what number you're at, add 5 to that number, and write it down. Protect your device using the 4-Digit Combination Cable Lock from CODi, providing the convenience of securing desktop and mobile devices with a single lock. Q: How do I obtain the Activation Code for my Bluetooth Smart 4400 or 4401 padlocks? A: To locate the lock's Activation Code on the instr 14 Dec 2018 forget the combination? Here are five ways to remove a padlock for which you have forgotten the code. Several people commented about how difficult this lock would be when I received it about a month ago, but after playing with it for a few minute I found it has the same weakness as many combo locks. Master Lock 175 and 176. If they input the wrong code a few times, the lock does not open for fifteen minutes and they can try again after that time period. To open the safe for the first time, key in the default combination code followed by ‘#’. The ‘lock’ symbol should be pressed, which is indicated in the center of the keypad. Turn the combinati 20 Aug 2018 The idea of someone tossing through your personal belongings, inspecting them and treating them without care is disconcerting. Beside above, how do you unlock a lock? Aug 25, 2020 · These steps can be helpful to open a combination lock without a code, but must only be done on the personal lock in case of an emergency. Now it is safe to release button; With latch still in the open position, scramble numbered dials by rolling them down off of your chosen combination code. Therefore, Master Lock does not have record of the combination that the owner set. Jun 29, 2007 · Unlock iPod Screen Lock If You Forget The 4 Digit Combination I’ve have several a lot of people post questions on other posts here at MDV asking how to unlock the iPod Screen Lock function if you forget the 4 digit combination/pass code, so I figured I would write up a short tutorial here to direct people to. Press and hold the number “0” until you hear a double beep. On your third rotation, turn the dial to the first number in your code. Make sure that these steps which have provided in this content should use only on your 9 Aug 2018 they teach how to crack the code of two different types of combination lock i. A word to the wise: You might also consider getting a more secure kind of lock Master combination locks are used to secure lockers at school, work or the gym, as well as shed doors and equipment chests. Turn the handle and pull the door open. Watch the video explanation about How to Crack the Code & Open a Combination Padlock Online, article, story, explanation, suggestion, youtube. A skilled locksmith can generally open a padlock in just a few minutes without causing damage. g. Step 1: Download and Connect. Turn the dial to the RIGHT 5 complete revolutions and stop Turn the dial to the RIGHT to unlock, the dial should stop between 88 and 92. Recover Personal Set Code. Free shipping with FEDEX Ground within the USA When swiping up to present the keypad unlock screen, when entering the 4 digit passcode, the phone will not unlock unless I press ok. Sometimes it will be back of the sticker or packet of the lock. This is the shortest sequence of digits that contain all permutations giving a symbol set (0…9) and a length (4 in this case).