Crack and Reset an Electronic Safe




About: I liked designing and building things long before I became an engineer, now I get paid to do it!

long story short, if i removed the contents of the safe for a friend, i could keep the safe... why not give it a shot.

Step 1: Decide How to Start

had i know there was a red reset button inside the safe and how to use it, i might have been able to push it using a flexshaft through the little hole in the back of the safe,
but a grinder is more fun.
so i cut a big enough hole to remove the contents.

Step 2: Screws? Lets Take Em Out

so looking into the hole, there was a red button, i pushed it, it beeped, but i didnt know what i was supposed to do... not like i had an instruction manual,
but if i did, i would have known to pressed the red button, punch in a new combo, and press A/B,
then to open the safe, punch in that combo, press A/B and it would open

so the electronics had a case around them, held in with 4 screws, i took them out, and jiggled the panel back enough to see what was inside, the panel couldnt be removed, becuase the lock bolts were holding it in...
but there was were 2 wires plugging into the circuit board which went to the lock mechanism, by unpluggin and connecting those wires to +6V i would have been able to unlock the safe and the door swing open.

there was also the battey case, i slide the panel off and took out the batteries and put them back in, hoping the safe would reset.... i proceeded to press buttons, and then the safe poped open.. cool.
thats when i really discovered how the red reset button and electronics worked...

next step is to weld that hole shut, and probably reinforce the safe with more steel plates... i plan on mounting the safe in my wall behind a portrait.. awesome.

Step 3: Weld It Back

i welded the plate i cut back on, cleaned up the welds with a grinder, and finally gave it a flat black paint job.

safe works great!



    • Fandom Contest

      Fandom Contest
    • Sensors Contest

      Sensors Contest
    • Colors of the Rainbow Contest

      Colors of the Rainbow Contest

    51 Discussions


    Tip 25 days ago on Introduction

    You should should think about replacing the key barrel. Some of these locks are useless, If its anything like mine it took only 2 mins to pick the lock using paper clip, I have seen others pick it in just 20 Seconds!


    Question 1 year ago on Introduction

    I got a crown safe and locked my self out of it. I have tried everything. Someone know a master code


    1 year ago

    hi I have a JSH safe, I changed the batteries and now i5 says “no date”????

    Please h


    4 years ago on Introduction

    omg - the warming of the door tip works brilliantly. But need to be patient and follow to the T the timings. 20 mins to heat up the door and 10 min to cool down. Otherwise it truly doesn't work!! Great tip and thanks so much.

    1 reply

    Reply 3 years ago

    I lost my diplomatic safe password so how can I open


    3 years ago

    I was given a steelcity electronic safe with out a combo to open it. I drilled a 1.5 hole in the back and was able to push the red button with a wood stick. It beeped and I pressed 1234 the A button and then the B button. I did it again as you said but it won't open ? What am I doing wrong ? Press A button and b button at the same time ??? Help

    1 reply

    3 years ago on Introduction

    Good stuff. Do you know how to override the alarm so it doesn't lock you out after three wrong entries? It would help me a lot :-)

    to open the safe that has no bypass lock, look under the key pad area, underneath, there should be a socket there like a phone connection, this is an override thing for hotels to use, so what you need to do is get an old phone cable, cut the cables on each end , you should have two cables on each end, now you will have to prise The phone socket part out from the safe as far as you canwithout completely disconnecting the entire unit, so get a 6v batt from alarm system, or you will have to buy one, join both bare cables to the batt, and then put one cable onto the phone socket that you prised out, have a good look up into the section, where you prised this socket out from and in around the key pad areayou should see other wire connections, so the second bare wire you will have to try to hit one of those connections, its trail and error, but if you have the right connection at the phone socket part, and you make the other connection with the right cable joint behind the keypad you should be getting the power to the door lock, remember its trail and error , you will have to do this a couple of times to make sure you are hitting the right connection, its works I just solved the same problem on my safe , i hope this helps you . Good luck



    4 years ago on Introduction

    I was appalled to find by accident that my Yongsheng safe (key+passcode) had actually *2* different passcodes: the one I had set after purchasing it, plus a second one, "123456".

    This does not seem to be mentioned in the usage instructions, which are surprisingly terse. I have no way of knowing whether there is a 3rd password and a 4th one also. I'm pretty upset.

    Re-typing a new password after entering it changes only that password; but pressing the red button only changes password #1 (which defaults to 1234).


    4 years ago

    I have a safeplace safe from hotel demolition job. I think model number xd70. No code. Cannot open. Tried hitting the top. Did not work. It's electronic and I'll post pics following the message. Would like to know how to get open. Thank you.


    4 years ago on Introduction

    Can't open my safe due to low battery. Followed the advise below to warm the door with a blow dryer for 15-20 minutes and let cool down for 5minutes. Try again with the password and voila it opened! Thank you very much for the advise! So happy with the result :-)


    6 years ago on Step 2

    I have a chubb blackbox electronic safe ,9v battery,but not working on ;R ,beep,C ,Silent to lock .Is there a way jumpstart?


    6 years ago on Introduction

    thanks for your post. it was so helpful. my safewell credit card now open. how do i set back the password and program my credit card? my keypad has only numbers 0-9, * & #.


    10 years ago on Introduction

    thanks for posting the pics, it helped me open my safe after the batteries had run out. I'll explain how and why below, incase anyone has the same problem: I have a small electronic safe hidden away under the main bar in our pub for change. unfortunatly the batteries must have ran down (still accepted the code, but wouldn't open the door). and again, unfortunaly I had no override keys, as the last owner must have taken them when we took over the pub. knowing that the code was still valid and working, tring to reset the safe by poking the red button thru the whole probably wouldn't have helped. but in the pics above, you can see that the door mech is secured by a solinoid, which needs to move downwards in order to allow the 'key' to turn. so I assumed the batteries didn't have enough power to activate the solinoid. therefore I entered the code and gave the top of the safe a heavy whack (in true Fonzie style) and the 'key' turned...presto!! hope this helps

    4 replies

    Reply 6 years ago on Introduction

    Thanks Ellis for your post......I managed to reset the code but just like you, I was unable to open the door. I searched on-line and found your post suggesting a heavy whack which, was duely delivered to my safe. Hey Presto....the door opened!! Well done and again, many thanks. Best wishes, Martin.


    Reply 7 years ago on Introduction

    if your batteries are getting low but have enough power for you to enter your code and you can hear the beeps but the batteries are to low to activate the solenoid. you can warm the door with a hair dryer ( i use a heat gun ) for about 20 minutes, leave to cool for 10 minutes, then re enter your code and the heat will have put enough charge into your batteries enough for the solenoid to be activated.
    as a locksmith i have had my fair share of callouts to these type of safes and if its old or tired or flat batteries then its a method i use all the time and has worked every time, if its a forgotton code then i use the bypass method to re set the code. hope this is of some help to you,
    and if you dont have a heat gun or a hair dryer just try to move the safe over to a radiator or any form of heater and let it sit there for a while, but always let it cool for ten minutes or so for best results.

    THANK YOU, The hairdryer worked. I am very happy. Blasted all of the door and left it to cool just like you said and I got in. Batteries all changed and all good. I love it when things work. Many thanks

    Hi Ian,

    All sounds straightforward with a hairdryer, however, what part do you heat? I have a Pregex small safe, electronic, low batteries beeping but not enough energy to open. Plastic front with turn knob and keypad. Have taken off the plastic bit which covers the lock and heated it and heated to the side of the plastic keypad directly onto the door, but am I aiming in the right place? I have never clocked where the batteries are inside....have our passports inside, so would appreciate any advice at this stage! I also never bolted, so like the idea of a knitting needle, but no idea where the little red button inside is either. And yes, I am a dippy woman who should've changed the batteries along time ago (no idea where the key is either!). Many thanks in advance.


    7 years ago on Introduction

    This thread saved my butt.. I changed the code on my safe while drunk, why? I hear you ask, I have not got a clue :s especially as I don't have an override key anymore, and haven't for months, I lost a bunch of keys a while back and my one and only key was on there.. Anyway, I had a lot of money as well as what I can only describe as priceless momentoes in the safe and was litterally bricking it, but the old knitting needle through the bolt holes (luckily I've not bolted it down yet) worked a charm.. Kudos to you Mr Author, I think I pretty much love you for starting this thread :) and to the person with the Yale safe, not sure if yours is the same as mine, but when you open the door, there should or could be a red button on the inside rim if the door? worth checking mate.. If you have, just press it and your safe will beep, then enter the code you want and press the B button on the keypad to save the code :)