Crack and Hack to Recover Combination Lock or Master Lock Combination Instructions

Master LockPassword, or pass phrase, passcode, or PIN (personal identification number) has been used prominently during daily life to access to certain resources such as Windows accounts, password protect files, websites’ log-ins and locks’ combination numbers. If you forget or misplace your master combination lock number, you can try to crack the combination lock to retrieve and get back the combination number by following the instructions and steps in the following video tutorial guide.

The combination cracking guide should works on Master lock, although some of the techniques can also be applied to other manufacturers’ locks, such as ACE Hardware, American and Dudley brands of combination locks. The steps are plenty, and involves some math calculation, and might take your few hours to crack and hack to recover the master lock combination number. It might be quicker to simply buy a bolt cutters. For more information on how a combination lock works and why these techniques work, plus pictures of the inside of a combination lock, visit here.


228 Responses to “Crack and Hack to Recover Combination Lock or Master Lock Combination Instructions”

  1. anonymous 111
    November 8th, 2009 05:03
    228

    mine is 904033…please help!

  2. COLIN
    November 8th, 2009 04:01
    227

    hi have an american lock, forgot combination serial number on back 07885 thank you!

  3. RobotWoods
    October 25th, 2009 19:35
    226

    There is a new iPhone App which helps you recover a lost or forgotten Master Lock combination: LockGenie

  4. Mariuxi
    October 25th, 2009 12:37
    225

    Hey,

    Can anyone help me…..i forgot the combo to an “american lock” serial no.

    A56
    100328A
    05

    I don’t know which are the numbers you need but i would really appreciate it….i thought it was 38-5-28 but it’s not working

    Thanks alot,
    Mariuxi

  5. jerry
    October 16th, 2009 09:28
    224

    please help mine is an american masterlock
    num. 11864747

  6. STEPHANIE
    October 7th, 2009 02:18
    223

    The video isn’t working. Any chance you could help with the code for my Masterlock? The serial code is 931047.

    Thanks

  7. Shirley
    October 6th, 2009 22:08
    222

    I work for a school district and was given a small Master Lock combination padlock with Fortress stamped in the front of the dial. The number stamped in the back is 903794. Can you supply a combination? Thanks

  8. maria
    October 5th, 2009 05:07
    221

    i lOst the lOck combO and i am going crazy the number is 901699
    HELP !!!!!!!!!!!!!!!!!!!!!!!
    THANK U !

  9. diego
    October 1st, 2009 02:30
    220

    Dear Joe,
    I have a Master Sphero combination lock with serial number 903654. Any help you could offer would be hugely appreciated!

  10. Yari
    September 30th, 2009 01:28
    219

    hey, I a have a sphero by marter lock, this is my lock from when I was in high school and I can’t remember what the combination is, I would greatly appreciate your help.
    8000019
    or it may be
    80C0019
    Thank you so much in advance!

  11. travis
    September 23rd, 2009 02:29
    218

    Please help me remember my combo. Master Lock serial number is 8000270.

    Thanks

  12. Rifet
    September 18th, 2009 09:02
    217

    i forgot my master comibnation lock the serial code is 8000239 please send me an email at mmazda2003@hotmail.com

  13. Richard
    September 17th, 2009 03:00
    216

    I have a masterlock with the serial number of
    906590 pls send me a combination!!

  14. Ashley
    September 16th, 2009 01:30
    215

    Hi I have a master lock and I don’t remember the combination. The code on the back is 903550. Thanks

  15. WtcHazel
    September 14th, 2009 07:13
    214

    My son lost his key and dosent remeber his combination.

    MASTER LOCK
    V610
    30825132
    07
    CAN YOU PLS. HELP.
    I would buy a new lock but I recenty lost my job, and can’t afford to spend.
    Thank you.

  16. WtcHazel
    September 14th, 2009 07:11
    213

    My son lost his key and dosent remeber his combination.

    mASTER lOCK
    V610
    30825132
    07
    CAN YOU PLS. HELP.
    I would buy a new lock but I recenty lost my job, and can’t afford to spend.
    Thank you.

  17. TrashCompaqtor
    September 11th, 2009 11:11
    212

    my Master lock serial: 626410

    This one probably has a different algorithm, because I’ve found other people who have gotten the first 12 numbers very similar to mine. I get 4 whole numbers that end the same and 8 numbers that end with a decimal.

    1.5, 5, 8.5*, 11.5, 15, 18.5*, 21.5, 25, 28.5*, 31.5, 35, 38.5*

    * the numbers 8.5, 18.5, 28.5, and 38.5 were not perfectly within their ranges, but the other 8 numbers were perfect. So that leads me to conclude that maybe my 3rd number of the sequence could be a possibility of 8 numbers: 8, 9, 18, 19, 28, 29, 38, and 39. That’s way too much work to test!

    I would appreciate it if anyone knows of any other algorithms to try for these Master locks that don’t seem to be the same.

  18. jacqualyn
    September 6th, 2009 04:48
    211

    425
    115443A

    thanks its and american lock

  19. jj hardy
    September 1st, 2009 08:15
    210

    american lock A61 100485A .lost the combo.

  20. Alex Oh
    August 31st, 2009 09:20
    209

    Joe my master lock is v629136947 b0
    plz help TY

  21. Terry Valenti
    August 28th, 2009 22:40
    208

    I have an American comibination lock that I don’t remember the combination number.

    00338

    Thank you!

  22. Ssfourteen
    August 22nd, 2009 02:24
    207

    Hey I have an American combination lock, serial H1247, anyway to get the combination? please email me with help, thanks.

  23. Joanna
    August 18th, 2009 07:10
    206

    my serial number is 922152 (master lock)

  24. carlos
    August 16th, 2009 08:50
    205

    my bad wrong serial no. its 102065

  25. carlos
    August 16th, 2009 08:27
    204

    i have an american lock
    960
    103119A
    thanks

  26. Steve
    August 15th, 2009 04:42
    203

    I forgot combo for master lock serial no.903128. Starts w/a 36

    Thanks!

  27. Juan Carlos Pingus
    August 9th, 2009 07:22
    202

    Tengo un candado Master con nùmero de serie 918743 se me ha olvidao la clave por falta de uso

  28. edgar
    August 1st, 2009 15:21
    201

    can you help me find my combo
    903713 thank you

  29. Seth
    July 27th, 2009 12:49
    200

    Masterlock 910631

    Thank you!

  30. sascha
    July 23rd, 2009 23:12
    199

    master sn:902746
    sv3213@gmx.de

  31. Stephny
    July 23rd, 2009 00:24
    198

    Master Lock #912098

  32. matt
    July 19th, 2009 10:22
    197

    Hi,
    need combination serial # is 924084
    thanks

  33. nicole
    July 10th, 2009 02:50
    196

    please help
    #8000100

  34. st
    June 26th, 2009 11:58
    195

    Can u please help me w/ serial # 909336? Nothing seems to work.

  35. Selina
    June 26th, 2009 11:04
    194

    Master
    #904386

  36. dude
    June 25th, 2009 18:56
    193

    there r so many links of how to crack a master lock but none about cracking dudley locks.

  37. Jones
    June 23rd, 2009 12:15
    192

    Please help.

    Master lock s/n 901187

    Thanks

  38. El
    June 23rd, 2009 01:05
    191

    Need master lock combinations for serial number 904501 and 904373. Thanks you in advance.

  39. George
    June 19th, 2009 07:18
    190

    My serial number is 904162. Please help!
    god_1893@yahoo.ca

  40. Shani
    June 19th, 2009 05:32
    189

    masterlock serial#: 8000268
    I NEED HELP!!!!!! I’ve tried like 8 different sites and still can’t get it. HHEEELLLPPP!!!!!

  41. Cody
    June 14th, 2009 02:43
    188

    #903816

  42. jaime
    June 10th, 2009 06:59
    187

    jaime
    06/09/09
    I forgot my combination it’s a master lock
    serial 8000346 thank’s a lot

  43. Kevin
    June 9th, 2009 09:12
    186

    i have a sphero master lock, and i have forgotten the combination. the number on the back is 903148. email me back at rogerfan88@gmail.com.

  44. ben
    June 9th, 2009 05:04
    185

    Can you help with #904533? Thanks.

  45. Yaroslav
    June 4th, 2009 05:04
    184

    Master # 640413

    thanks.

  46. help2
    June 4th, 2009 02:53
    183

    please help me with my lock thank you it is a sphero master lock

    #903568

  47. help
    June 4th, 2009 02:45
    182

    please help me

    #903568

  48. CO
    June 3rd, 2009 22:20
    181

    Master Lock
    903076

  49. Lyn
    May 29th, 2009 17:13
    180

    i lost my combo =[

    #8000122 masterlock

  50. Megan
    May 28th, 2009 09:26
    179

    Serial #903515…please please please help me

  51. Kevin
    May 18th, 2009 06:02
    178

    Hi, can you help me with a combination for American lock serial 02147? I just found the lock and cant remember the code. Thanks in advance.

  52. callie
    May 16th, 2009 07:54
    177

    Please help my with my lock!

    904030

  53. cyn
    May 11th, 2009 22:43
    176

    Can you help me with #903443?

    Thank you

  54. john
    May 9th, 2009 09:12
    175

    hey i need you to crack my code serial# is 8000324 my email is dds696@gmail.com

  55. john
    May 7th, 2009 22:06
    174

    could u crach this code for me the # is 8000324

  56. Michael K
    May 6th, 2009 23:29
    173

    I was wondering if you could help me recover masterlock combination code for serial number 922268. My email is: mikekit22@yahoo.com. Thanks!

  57. louie
    May 6th, 2009 21:29
    172

    can someone please help me unlock my combination lock ,the serial number is 904305.
    thanxs my email is volcankaw@hotmail.com

  58. louie
    May 5th, 2009 08:01
    171

    can someone please help me unlock my combination loc ,the serial number is 904305.
    thanxs

  59. brad
    May 4th, 2009 03:19
    170

    i need the combination for my lock please, the serial number is 922428 if you could crack it for me i will be very greatful

  60. Royce
    May 3rd, 2009 02:46
    169

    904161 apusheditor@yahoo.com its my locker storage and i have to pay a fine of 250 to cut it open

  61. Salome
    May 2nd, 2009 09:10
    168

    Hey can you crack my master lock combination lock serial number 933347

  62. john
    May 2nd, 2009 08:33
    167

    Master sphero serial #: 8000226. Haven’t been able to open the box it’s locked with in along time. Having the combo again would be awesome.

  63. Sergey
    April 30th, 2009 23:58
    166

    hey can you crack my master lock combination?

    # 904394

    My Email is Skotlyar113@hotmail.com

    thank you so much(in advance)

  64. leah
    April 19th, 2009 21:04
    165

    Alex,

    please help me find the combination to my lock. it’s a master’s lock serial number #5103934.

    Thanks so much!!

  65. hyo
    April 16th, 2009 14:25
    164

    I know it’s been awhile, but could please help out a brother?

    I’ve got an old dudley lock probably about 9 years old, serial number JT64603.

    Thanks a bunch Joe!

  66. Conan
    April 1st, 2009 03:37
    163

    my dudley lock has a serial number of BD 323118

    email is flash.r7@gmail.com
    I appreciate it, I may have something of your interest in return

  67. zhen
    March 26th, 2009 00:39
    162

    please help me find you my pin.
    thank you, #12354074
    my e-mail: zheng8405@hotmail.com

  68. zhen
    March 26th, 2009 00:34
    161

    please help to find out my pin no. i forgot it. my # 12354074

  69. amy
    March 13th, 2009 12:36
    160

    Pleasee help me! My serial number is 904827.

    amyrstevens@yahoo.com

  70. Jake
    March 6th, 2009 21:12
    159

    My masterlock serial number is 8000239.
    Please help me obtain my combination.

    My email is jhunter410@gmail.com

    -Thank you.

  71. Crystal
    March 4th, 2009 00:23
    158

    Hi my masterlock serial number is 940835. Can you please tell me my combination? I have tried these steps and it just isn’t working for me.. :-(

    btrflykisses85@gmail.com

  72. Emily
    February 28th, 2009 21:32
    157

    Hi
    My name is Emily
    I have a dudley lock
    My series number is 960461
    Please help me to open it…

    Thank you SO much..

    my email address is merry12302002@hotmail.com

    Thank you..!!!!!!

  73. chris
    February 25th, 2009 16:53
    156

    please help… my master sphero serial number: 904162

  74. Janine
    February 11th, 2009 22:19
    155

    Please help! My serial number is 903916. My email is shempp4@yahoo.com thanks!

  75. joseph
    February 8th, 2009 02:07
    154

    my combination is 27 – 16 – 7
    Can someone help me find my lock?

  76. Jeff A
    February 5th, 2009 11:08
    153

    Would you please be able to get the combo for MasterLock #928273

    email is wilbur2231@yahoo.com

  77. Alex
    January 28th, 2009 12:17
    152

    My e-mail is alexis_futbol@yahoo.com

  78. Alex
    January 28th, 2009 12:16
    151

    I really need the combination for this lock. Can somebody please crack it for me. The serial # is 919454.

    -Thanks

  79. Mariah
    January 26th, 2009 12:04
    150

    hi, i have a master lock that i have to use for tomorrow, but i lost teh combination can you please please tell me. ser # 1576656

  80. L.G.
    January 26th, 2009 05:29
    149

    I need help finding the combo to a master lock. if you can help, please reply. thanks

  81. Jennifer
    January 25th, 2009 10:04
    148

    Hi! I really need to the combination to my “Master Combination Lock” and I was wondering if anyone would help me. My serial number is
    17603778

    Thanks!

  82. MLGS
    January 24th, 2009 04:22
    147

    Hi,
    I have a master lock and I’ve lost may combination.
    My serial #8000058. Could you please tell me the combination for my lock.

    Thanks

  83. Kesha
    January 22nd, 2009 15:20
    146

    I have Sphero master lock and i forgot the combo and I need this lock. my serial number is 8000381. email me at keshao@bgsu.edu

  84. Corri
    January 20th, 2009 04:17
    145

    Hi this is michelle again can anyone help me with my lock 910338 I forgot the combo my e-mail is Corri_Brady@yahoo.com

  85. jeff
    January 18th, 2009 00:26
    144

    Hi, i have a master lock and ive lost may combination so my serial #800347 can you tell me whats the combination for my lock.

  86. Michelle
    January 16th, 2009 04:01
    143

    I have a masterlock and I forgot the combo can anyone help the ser. Number 910338! Can anyone tell me the combo PLEASE

  87. Tim
    January 15th, 2009 08:35
    142

    I have two American locks:

    Serial numbers:

    H0329

    H1603 (3 may be an 8)

  88. Kennyz55
    January 13th, 2009 23:51
    141

    Joe,
    i cant remember the code for my lock its a sphero by master lock.

    serial # is 8000059

    Thanks,
    Kenny

  89. brady
    January 7th, 2009 11:37
    140

    i lost my combo and the serial # is 8000174

  90. JayB
    January 7th, 2009 02:57
    139

    Hi if this is still going, I have a sphero lock 903578 if you could figure this one out. I’m trying but so far no luck, thanks.

  91. Amanda
    December 24th, 2008 03:09
    138

    Hi…I’m sorry but I haven’t been able to figure this out yet. If you are still taking lock numbers, mine is a Master Lock with the serial number #903882. Thank you so much!

  92. Tom
    December 22nd, 2008 01:11
    137

    hi i have a Dudley lock can you crack it for me here is the serial number 203020A

  93. Ian Duffey
    December 21st, 2008 03:39
    136

    serial # is 900197 please crack

  94. Rack
    December 15th, 2008 11:25
    135

    “I tried to do this and Im obviously not doing something right. I ended up with too many whole numbers.”
    You’ll have to examine the whole numbers more closely. I used to use (and still do use) the 3 cross method for finding the last number. You pull up on the shackle as usual, but instead of advancing to the next stop, you give the dial a quarter-turn and examine the stop there instead and so on around the dial. Only then do you go to the next cross by advancing 1 stop past the very first stop you started on. An example!:
    I have a lock here, the first cross is (note, I’m not averaging, you’ll see why):
    2-3, 12-13, 22-23, 32-33
    next is:
    5-6.5, 15.5-17, 25-26.5, 35-36.5
    third and last is:
    38+-0, 8.5-10, 18+-20, 28.5-30
    The first cross, they’re all identical, and they don’t average to a whole number anyway. All decoys!
    The third cross, there’s a little slop, but the slop is paired up on opposite sides of the dial, and at least one set of ends (the upper/right end) is a whole number (0,10,20,30). Decoys.
    The second cross, there’s one stop that’s just half a number off from an otherwise normal-looking decoy cross. That aberration (15.5-17) contains your third number (16).
    You’ll note that the real stop is a mere half number off from all the others in its cross. With averaging, you’ll miss it. Doing all the stops in order, you’ll probably miss it. Only by hitting all 4 points of the cross in rapid succession will the minute difference stand out.
    With the third number, and narrowing down the first and second numbers as usual, just tumbler bump out 10 sets of 10 combinations (never bothered to remember which 20 to eliminate) and the lock should be open in a few minutes.

  95. Jacob
    December 14th, 2008 15:55
    134

    My serial number is 903693 please crack for me.

    Thanks.

    Email: guitarman334@lycos.com

  96. RFOB
    December 9th, 2008 13:44
    133

    MASTERLOCKE V6B
    4001896

  97. Jesse
    December 4th, 2008 13:21
    132

    Trying to get a combo cod for an American Lock. Serial number is 51551. Thanks

  98. ram
    December 2nd, 2008 17:41
    131

    My serial # is x21928. Can you please find combination?

  99. Stacey
    November 21st, 2008 04:59
    130

    I tried to do this and Im obviously not doing something right. I ended up with too many whole numbers. Are you still taking lock numbers? If so, mine is 906855. I think I came up with 24 as my last number but none of the comebo possibilities work. Please help. Thanks.

  100. laifraize
    November 19th, 2008 22:05
    129

    hi
    I just find the way to open a lock in few seconds

    http://www.metacafe.com/watch/yt–gtog7ism50/how_to_open_a_combination_lock

  101. mike
    November 16th, 2008 13:16
    128

    Damn, am I the only one who actually watched the video and made it work. You people just need to watch the video and do it. It works. A bit time consuming but it is better than photo copying the back of your lock/serial number, getting a notary public to certify it is your lock, mailing Master Lock, and waiting six weeks for a reply. Just watch the video,use your brain and do it….or cut the lock and buy a new one. If you can’t figure it out you probably don’t even realize that the president has little to do with the economy either-and you likely voted Communist-PS.Thanks Barney Frank and Fannie/Freddie idiots (should all be in jail) for jacking up the economy and destroying my business (R.E.Appraisal). Move to Russia!

  102. mike
    November 16th, 2008 02:41
    127

    Worked for me. I did a little guessing as the 12 initial numbers were difficult to determine whether they were whole numbers of ?.5 #s. But after seeing a trend in the 5 remaining whole numbers (23, 33, 3 etc.) I knew that the “10″ stood out and went with it. My remainder was 2 as 10/4=2 with a remainder of 2. (2,6,10,14 etc.) for the 1st poss. # combo. As you are supposed to add 0 for a remainder of 2 for the 2nd poss. # combo. was (0,4,8,12,16,20,24 etc.). I started guessing at random because I was getting frustrated with how much time this was taking…I tried three random combos with “10″ being the last # and got it on the third try. 14-24-10. Probably beginners luck but there is hope for you fellow frustrated crackers. It does work.

  103. Phil
    November 14th, 2008 06:06
    126

    Hi, I have a master lock ser #902318 it is for my daughters bike on a cable in my drawer and i hate to cut it off so she can use it, we cant find the combo.can you help me? Thank you Phil

  104. richie
    November 9th, 2008 23:17
    125

    i have a master lock serial number 902750 i need the code

  105. maggie
    November 8th, 2008 12:12
    124

    are you still helping? I have my son’s master lock, #940733
    Thanks.

  106. will
    October 27th, 2008 09:04
    123

    american lock
    01955

  107. Jen
    October 22nd, 2008 05:00
    122

    I have a masterlock that I haven’t been able to figure out the combo using various methods I found online. The serial is:

    904075

  108. James
    October 17th, 2008 07:50
    121

    blue sphero w/ keys but i still need the combo if you can help me out.
    #8000101

  109. Jeff
    October 2nd, 2008 01:02
    120

    i have same as someone above with a 903534 if you can find that out it would be great if you’re still helping people out, thank you.

  110. William
    September 23rd, 2008 07:32
    119

    I have a Dudley lock

    BD 110285

    plz, i need combination lock
    Thanks

  111. Taryn
    September 23rd, 2008 01:00
    118

    I have a Dudley lock and i really need the combo serial code 909351
    thaxz

  112. Amber Becktold
    September 15th, 2008 08:00
    117

    I have a master lock series 1527D, serial number 903563 and cannot find the combo anywhere, I need help!
    becktold5@aol.com

  113. Tyrone
    September 14th, 2008 21:40
    116

    Joe is gone. there is no point in submitting your serial.

  114. hasan
    September 12th, 2008 13:07
    115

    Hi I have an american master lock, serial code 904368. Do you have the code for this one? Thanks in advance.

  115. gloria
    September 7th, 2008 12:00
    114

    Hi am gloria pls help my lockers num. is 903345 pls help asap

  116. Michele
    September 7th, 2008 01:07
    113

    I have a master lock and I cant get it open! HELP!!! 901808

  117. Lucy
    September 6th, 2008 14:44
    112

    master lock 8000005
    thanks

  118. Kendra
    September 4th, 2008 10:45
    111

    I have an american lock
    414
    187151A

  119. thao nguyen
    September 3rd, 2008 11:58
    110

    can you help me to find the combination of this lock V62 302890055

  120. Sheri
    August 30th, 2008 12:59
    109

    Pls Help. Have tried for hours to crack. I have a Dudley lock and can not get code. Dudley only keeps records for 7 years. I would love to be able to use the lock.
    #DM 60082 Thanx!!

  121. meme
    August 28th, 2008 04:46
    108

    email me plz if u find it my email is memesweet12@sbcglobal.net

  122. meme
    August 28th, 2008 04:44
    107

    can u help me 24399426

  123. Noah
    August 27th, 2008 07:44
    106

    Hi

    Can you help me with my combination?

    The serial number is 904187

  124. Noah
    August 27th, 2008 07:42
    105

    Hi, can you help me with my lock?

    Its serial number 904187

    thanks!

  125. Jean L.
    August 25th, 2008 11:08
    104

    hello Joe, I forgot the code for my sphero master lock. I will be grateful forever if you could help me find the comb. The serial number is 8000025, and I believe the last number is 7. It’s all i can remember.

  126. Chris
    August 25th, 2008 08:32
    103

    I have a master lock with serial code # 903156. Do you have the combination?

  127. chris
    August 25th, 2008 07:29
    102

    i have a master lock with serial code 903793. do you have the code for this one?

    thanks!

  128. tim
    August 21st, 2008 02:15
    101

    hey joe i lsot my combination my serial # is 8000240 its a brand new lcok i lsot the combinatio nto it pimpinpunjabi728@yahoo.com email the code to me plzzzzzzz

  129. Ani
    August 20th, 2008 14:44
    100

    Why don’t you guys just take your combo Master lock to a nearby hardware store? They can easily figure out a new combo for you with the serial number on the back.

    They do charge sometimes.

    Makes it easy. You just need your Master lock with you.
    =)

  130. Andrew
    August 9th, 2008 13:08
    99

    Joe where are you you havent said any thing for almost two months! HELLO?

  131. Andrew
    August 9th, 2008 11:06
    98

    I need help my master lock number is 904500 can some one give me my combo

  132. nick
    August 8th, 2008 10:20
    97

    plz crack serial is 22473745 master lock

  133. nick
    August 8th, 2008 10:18
    96

    crack mine plz serial 22473745 it master lock

  134. nay
    August 4th, 2008 11:52
    95

    please help me remember my combination. masterlock serial #903534. Thanks!! You can email me.

  135. Nai
    August 3rd, 2008 20:19
    94

    Hi Joe could you possibly get the code for American Lock serial # 95950? Thanks!

  136. ivon
    August 3rd, 2008 02:43
    93

    please i need help
    i forget my combination
    the serie on the back is 904587
    please i need it
    soon as posible

  137. bob
    July 31st, 2008 08:31
    92

    Master Lock

    V64
    15138695
    10

  138. daztame
    July 30th, 2008 22:47
    91

    hi joe can you tell code for sphero master
    8000445 i have key but have forgotten code

  139. Marek
    July 29th, 2008 01:44
    90

    Please help with Master – serial 943531.

    Thanks

  140. jack
    July 26th, 2008 03:14
    89

    please help me get the combination to my master lock. this is the second lock that i forgot the combination to. the serial number is 907986. plz send it to my email at superbold24@yahoo.com….. tyvm

  141. Doug
    July 24th, 2008 10:38
    88

    Need help with Master S#905731. Couldnt watch the video looks like it has been removed.

    Thanks

  142. Kimberly
    July 14th, 2008 10:03
    87

    I cannot remember two of the digits of my combination of my Masterlock and I need it for gym use. The serial # is 904234. Can you please help me out! Thanks for your help – it would be amazing!

  143. Erik
    July 7th, 2008 13:12
    86

    I have a master lock and i have forgotten the combination. I really need this for school. The serial number is 2602942 please email Erdogmaster92@aol.com

  144. Erik
    July 7th, 2008 13:10
    85

    I have a master lock and i have forgotten the combination. I really need this for school. The serial number is 2602942

  145. cameron
    July 5th, 2008 06:49
    84

    combination 907903 please help email c0lex@yahoo.com

  146. cameron
    July 5th, 2008 06:49
    83

    my combination serial number is 903907 please help my email is c0lex@yahoo.com

  147. Ryan
    July 3rd, 2008 00:51
    82

    I need to open my lock i forgot the combination and i have impotant stuff were i locked it my code is 908991 plz help me out.

  148. Danny
    July 1st, 2008 22:38
    81

    i have a master lock the serial number 30264667 would appreciate it if you can get the code for me i have forgotten it

  149. Will Bill
    July 1st, 2008 19:00
    80

    I have a Master SPHERO combination lock with serial #8000284. I recently loss the combination and need the combination to this lock. Many thanks in advance for the help.

  150. MIKe
    July 1st, 2008 05:04
    79

    can sum1 do it for me i have a regualr combonation lock the ones that they have in school lockers
    plzzzz
    here’s da email- koolaidrqzpr@aim.com

  151. Jennifer
    July 1st, 2008 04:09
    78

    The official website for Master Lock is – http://www.masterlock.com/ and the contact form for Customer Service is – https://contact.masterlock.com/index.aspx?ID=52

  152. Jennifer
    July 1st, 2008 04:05
    77

    Update: I contacted Master Lock and emailed them a photo of my lock. They have sent me my combination already. For others who want still need their combination, you can go to Master Lock’s website and use their contact form. They’ll reply with instructions.

  153. MIKe
    July 1st, 2008 02:19
    76

    I have a master lock and my lil cousin had closed da lock on my bathroom. I have 2 get it out quick. Plzzzz i need it quick can u send me da combination for my lock or is there a website where i can find it myself.
    here’s da serial number on da baq
    # 903347
    plzzz send it @ this email
    koolaidrqzpr@aim.com

  154. Sergei
    June 26th, 2008 11:55
    75

    hey joe,
    i have a DEFCONCL lock with serial 103038D. could you please help me with the combination?

    many thanks

  155. Jennifer
    June 26th, 2008 00:11
    74

    Please, I have an old Master lock, serial number 910308. Could you help find the combination. Thank you very much.

  156. Devin H
    June 25th, 2008 03:29
    73

    my serial number is 904001 thanks so much

  157. Steven
    June 24th, 2008 15:06
    72

    Wow, I saw someone had forgotten a Masterlock Sphero only 1 serial number away from mine. I can’t remember mine either, and I would love some help if you can.

    904153

    Thanks man

  158. Dale
    June 24th, 2008 02:38
    71

    My daughter has a Masterlock Sphero with 8000191 on the back.

    Do you know the combo for this lock?

    (second request)

  159. db
    June 24th, 2008 02:27
    70

    Master
    Serial # 909276
    &
    Serial # 911322

    Thanks,
    Doug

  160. Nicole
    June 23rd, 2008 06:35
    69

    Hello,

    I just moved out to college and my mother left me a desk that belonged to my sister. When my sister was in high school she put her two American locks on the desk drawers and now she’s forgotten the combination. Can you help me?

    First one: Serial #00582
    Second one: Serial #00972

  161. erik
    June 22nd, 2008 14:09
    68

    903105
    thanks a bunch

  162. Grace
    June 22nd, 2008 01:52
    67

    That’s alright.
    And if you suddly stop updating/commenting, we’ll know that they came knocking on your door, Joe.
    Anyways, if I called Dudley and gave them my serial number…
    think they would be able to give me the combo?

  163. Ashley
    June 21st, 2008 10:32
    66

    Joe I think you missed mine.

    #909168

  164. Joe
    June 21st, 2008 06:29
    65

    I do not have access to Dudley combo’s so I am sorry for that but here is what I do have…

    8000414 Nothing
    900846 22-08-30
    904102 10-00-22
    949092 Nothing
    904154 10-32-06
    78020 V67 Nothing (usually if a v in serial means NO)
    946211 Nothing
    911975 00-18-32
    915319 Nothing

    Wow that was a big list this time. Someone from master lock is going to come knocking on my door one of these days lol…

  165. Dale
    June 21st, 2008 04:48
    64

    My daughter has a Masterlock Sphero with 8000191 on the back.

    Do you know the combo for this lock?

  166. Grace
    June 20th, 2008 01:48
    63

    I’m having a hard time with my lock, trying to find out it’s combination.
    Help please?

    Serial : BD 159580
    ( Dudley Lock! )

    Thanks!
    Grace

  167. Cat
    June 19th, 2008 23:15
    62

    is there anyway you could help me with my combo as well. my masterlock serial number is 8000414. thanks in advance.

  168. Chris
    June 19th, 2008 10:48
    61

    Hi Joe,

    Masterlock #900846

    Thanks

  169. Stephen
    June 18th, 2008 05:08
    60

    Joe,
    Could you help me out with my old Master? my serial is 904102. Thanks in advance.

  170. JD
    June 18th, 2008 04:44
    59

    Hi Joe, I have one serial for you. Thank you.

    949092

    btw, its masterlock

  171. Paul P.
    June 18th, 2008 04:42
    58

    Yo, Joe, It looks like you can find the combination of a lock that i have lost the combo to. Heres the masterlock serial :904154

  172. bj
    June 17th, 2008 07:34
    57

    hi

    serial:78020 v67

    thanks

  173. Joshua
    June 17th, 2008 06:40
    56

    CORRECTION, Sorry, i submitted the serial wrong. Here you go Joe, Thank you. I was missing the last digit.
    serial: 946211

  174. Ashley
    June 17th, 2008 06:38
    55

    Whoops, I forgot to submit the combo. Masterlock serial #909168

  175. Ashley
    June 17th, 2008 06:37
    54

    WOW, this is some really amazing software you got there. I would get it but im poor. lol. Could you find the combination for this serial, I lost the slip with had the combination. I should’ve saved it somewhere on the computer. TY!

  176. Joshua
    June 17th, 2008 06:35
    53

    Hey Joe, I see this has been working for a lot of people, could you possibly get this combo? Thank you.
    masterlock serial
    94621

  177. Kishan P.
    June 17th, 2008 06:33
    52

    hello Joe, I actually have two serials for you. These locks have been in my basement for about 2 years and it would be awesome if i could get the combos back.

    Masterlock: 911975
    Masterlock: 915319

  178. Joe
    June 17th, 2008 02:08
    51

    Sorry KG I couldnt have been of more assistance to you on that one. And for Dan are you sure that is a standard master combo lock serial number you may want to check again there are not enough digits in the serial number there.

    Everyone I just updated the master database in my software and I double checked the rest of the ones I could not find in teh previous checks and there are still no updates to those but I will keep trying for you all…

  179. kg
    June 16th, 2008 01:30
    50

    Masterlock: 1201262 V45

  180. kg
    June 16th, 2008 01:30
    49

    no code for this one joe?

  181. Dan
    June 13th, 2008 21:12
    48

    Joe,
    I have a Master lock with code 9898. I have lost the combination for it. Could you help me out with this one?

    Thanks in advance.

  182. Armida
    June 13th, 2008 05:21
    47

    Joe,
    YOU ROCK! I remembered it had a 22 in the combo – somewhere.
    Thanks a bunch!.

  183. Joe
    June 13th, 2008 05:10
    46

    Armida 30-32-22

    Boy you guys are comming up with some tough ones the only one I was able to lookup in that last set was Armida’s sorry to everyone else. But Master puts out some lines that are special and they dont give those codes out to just anyone. So even us locksmiths get the shaft. I hope you find your combinations everyone.

  184. KG
    June 13th, 2008 03:06
    45

    Hello Joe,
    I have a Master lock. I have lost the combination for it. Could you help me out too? Thanks in advance.

    Masterlock: 1201262 V45

  185. Armida
    June 13th, 2008 00:28
    44

    Joe,
    i have master padlock serial #909513, can you please provide combo.

  186. Ryan S
    June 9th, 2008 10:31
    43

    Masterlock serial# on printed on the back is

    947944

    Thats some awesome software youve got there!!

    -Ryan

  187. mackenzie
    June 9th, 2008 03:25
    42

    master lock 8000078 thanks

  188. mackenzie
    June 9th, 2008 03:20
    41

    i cant remember the code for my lock its a sphero by master lock.

    serial # is 8000078

  189. des
    June 6th, 2008 08:37
    40

    hi Joe
    I have an “American” Lock
    I have forgotten the combination. Could please help me out.

    Serial: 29635

  190. Joe
    June 6th, 2008 07:43
    39

    78020 = 00-22-16

    Unfortunately CC I was unable to find a code for your lock. I will check another source and see if I can help you out with that one later. I may just call a friend and have him look it up on some newer software. Sorry i couldnt help you out any further.

    The software I have been using is made by HPC hpcworld.com and its called CodeSource quite expensive actually around $600 or so ouch.

  191. bj
    June 6th, 2008 07:10
    38

    hi

    serial:78020 v67

    thanks

  192. Allen
    June 5th, 2008 09:11
    37

    Hey Joe, could you please tell me the name of the locksmithing software you used?

  193. Joe
    June 5th, 2008 08:50
    36

    I am working on a way to obtain the codes without the use of the locksmithing software so that I can load my own database. But there may be restrictions like proving that you actually own the lock before I can give out the combo’s like it may actually be a requirement by the information provider but I will make it simple and free like being able to upload a photo of the back of the lock and then I will just approve the request and you will automatically receive the combo in your email. I will keep you all posted.

    Joe

  194. CC
    June 5th, 2008 01:16
    35

    Joe,

    When you get a chance, can you help me to unlock my masterlock? i forgot the combination after vacation, thanks in advance.

    masterlock – 921884

  195. Joe
    June 5th, 2008 01:02
    34

    The software is some locksmithing software used to find codes for cars, houses, business’, etc. It only works though if the codes have been loaded. So if you were to say see a code on the side of a car door lock (After you remove it from the car door of course) then I can see what the depths of the key are and make it on a special machine. Master lock codes are just a bonus to have there.

    Joe

  196. Dude
    June 4th, 2008 03:07
    33

    Thank you so much Joe! could you tell me how you did this? with software or what?? you are amazing. I did not know this was possible.

  197. CC
    June 3rd, 2008 20:57
    32

    master lock 921884.
    Thank you so much for your help. your site is fabulous!

  198. Joe
    June 3rd, 2008 07:31
    31

    Dude,
    Here you go 04-22-28

  199. Dude
    June 3rd, 2008 03:56
    30

    Masterlock 911713. Thanks in adavance Joe!

  200. Joe
    June 2nd, 2008 12:22
    29

    D,
    Here you go 38-04-18

  201. D.
    June 2nd, 2008 09:54
    28

    Masterlock 718311 thanks!

  202. Joe
    June 1st, 2008 23:19
    27

    Here you go J 18-20-02

  203. J
    June 1st, 2008 13:25
    26

    Masterlock 904078 thanks!

  204. Ace
    May 30th, 2008 08:58
    25

    #911713

    masterlock

  205. eb
    May 30th, 2008 07:29
    24

    MASTER 901285 NEED COMBO

  206. Ace
    May 30th, 2008 06:54
    23

    I have one can you please gimme it? without it my lock is garbage.

    #911713

  207. Maile
    May 29th, 2008 13:24
    22

    Thank you for trying! It’s truly appreciated. I guess it’s time to buy a new lock anyway. Thank you!

  208. Joe
    May 29th, 2008 12:30
    21

    I have been unable to find combinations for the last two posted. I hope that you can understand. If you have any others though please feel free to post.

  209. thanh
    May 29th, 2008 01:52
    20

    please crack mine
    930142

  210. Maile
    May 28th, 2008 14:44
    19

    I lost my combo…Can you help?
    My serial is: #916823

    Thank you in advance!

  211. Joe
    May 28th, 2008 12:35
    18

    Randy 34-36-22

    Adam 02-24-06

    I dont have any codes for Dudly locks sorry I could not be of assistance to you Jeremy.

  212. jeremy
    May 28th, 2008 08:48
    17

    i lost my combonation can you get mine ?
    serial number for dudley # AL 537499
    thanks

  213. Adam
    May 18th, 2008 09:05
    16

    My serial # is 903338. Can you please find combination?

  214. randy
    May 17th, 2008 13:50
    15

    hi,this method won’t work for me, i have a serial though 904137

  215. Joe
    May 15th, 2008 13:36
    14

    Adela,
    Here is your combo 12-38-08

  216. adela g
    May 6th, 2008 09:15
    13

    hey I lost my combination and want to open my lock have tried several different methods to crack the code but am stuck if you have any help for me I would be greatful thanks

    adela

    serial masterlock 902919

  217. Joe
    May 3rd, 2008 23:46
    12

    If you post a serial number for the lock I can give you actual combination.

  218. Andrew
    March 16th, 2008 11:57
    11

    I have a Master padlock that I forgot the code
    to and I need a place where I can get a corect code because I tried like 5 other websites and all of them didn’t work. I NEED HELP!

  219. Kristophe
    January 5th, 2008 00:06
    10

    Thanks BUT there is a problem in your demo from part one to part three. You are saying that the reminder can either be 0, 1, 2 or 3 which is true, then in the next phase you say, if remainder is 0 or 1 add 2 if the remainder is 3 or 4, substract 2 … that second statement does not make sense since you forget the possibility that the remainder is 2 and you have a remainder of 4 which according to the statement from phase one, it’s not possible. I assume you meant if the remainder is 2 or 3, substract two.

  220. Meta Andrews
    October 10th, 2007 04:55
    9

    Thank you sooooo much! It worked like a charm!

  221. shaun
    September 28th, 2007 12:39
    8

    WOW it worked, I tried “listening” and got close to the first two numbers so i was able to look at the numbers from this method and figure it out in less than 15 trys!!! Thank you. you saved my $5 lock from being trash :)

  222. carolina
    September 18th, 2007 09:58
    7

    Hey someone put put a padlock master in my purse of school and not there goes in that I do

  223. casey
    September 11th, 2007 11:27
    6

    AL 632088

  224. steve
    August 30th, 2007 00:01
    5

    i tried the method and i got 7 point 5 numbers but i only got 4 whole numbers all ending with 0 wich were 0, 10, 20, 30 can someone help me plz thanks!

  225. mark
    August 18th, 2007 13:37
    4

    my forearm hurts

  226. Jon
    August 18th, 2007 02:15
    3

    Great! I really needed this video. Now I can use my Master Lock for school!!! :-) Once again, THANK YOU!!!!

  227. Chantal
    July 31st, 2007 00:58
    2

    THANK YOU!! I had 2 dudley locks, and one master – with no combination in memory or on paper. I really needed to use a lock so I thank you again.

  228. ivan
    April 19th, 2007 13:32
    1

    Does this method work on dudly locks??

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