How to reset H.264 Network DVR [ All Models ]

Have you lost the H.264 DVR’s password and don’t know how to recover it?

Some generic DVRs usually don’t even come with instructions on how to reset their passwords but don’t worry, in this article, you will learn how to reset H.264 network DVRs. So, keep reading..

To reset an H.264 DVR you either need to press and hold a reset button available in the device, use a reset software available in the article, insert a special password or ask for the device manufacturer’s support. This article has more details about every one of these options.

I will talk about some methods for h.264 network reset that are used with most H.264 DVRs, however, there are thousands of DVR brands on the market, and the way to reset the password can vary from one model to another.

My first recommendation 

The first recommendation for an h.264 network reset is to read the equipment’s manual or to contact the DVR’s dealer, especially if you have a well-known brand DVR such as Samsung, Bosch, Panasonic, etc. 

However, sometimes you have a DVR with an unknown brand and there’s no manual available and no technical support number available.

If you are unlucky and lost the password for a generic H 264 DVR, I will list some ways to get around the problem, check which one may work for you.

Here are the ways you can recover from a lost password.

1. Use the DVR factory default password2. Use a DVR password generator 3. Update the firmware and reset the DVR4. Reset the DVR by removing the battery5. DVR physical reset with jumpers6. Delete the password file by using telnet

1. Use the DVR factory default password

It seems obvious, but trying to use the DVR default password must be the first thing for an h.264 network reset password recovery attempt since in many cases the original DVR’s password has never been changed.

Check the DVR manufacturer’s manual or a password list for specific DVR models, the most common brands are Swann, Voyager, and Dahua.

See the table below with the DVR default password for different manufacturers. Perhaps your DVR is here…






















DK Seg


























































































2. DVR password generator

There is software that can generate passwords for some DVRs to allow administrator access, you just need to enter the current date that appears on your DVR and click OK to get the new password.

Several companies buy unbranded Chinese DVRs and put their own brand, so when you turn the equipment on you can see that the DVR’s menu is similar to the ones used by generic DVRs because they use the same chip.

DVRs that are known to accept this type of reset are Luxvision 5716, 6008T-EL, HA-1648, CP-Plus, Citrox, BB-4CH, Sansco, Kare and other generic brands such as “H.264 network, H.264 DVR” , etc.

If your DVR has a login screen like the one in the picture, it probably uses the chip that works with the DVR password generator.

Login DVR

There is no need to connect the DVR to the computer, just run the software on your computer, look at the DVR screen to see the date and time and use it in the password generator software.

DVR date and time

Keep in mind that DVR password generators will work only with specific chip models, obviously not suitable for all models in the market.

HiSilicon DVR password generator

Chip Hisilicon

If your DVR has the internal chip manufactured by Hisilicon, there is a great chance that the DVR password generator will work, depending on the model and year it was manufactured. See the chart below:

Inside your DVR there are chips responsible for certain functions. See below a table that shows some DVR models that use those chips.

DVR chips

There are 3 versions of the DVR password generator that work with this chip, you can try each of them to reset your DVR.

If your DVR has one of these chips, your problem is solved. Just click the links below to download the DVR password generators.

DVR Password generation 01

DVR Password generation 02

DVR Password generation 03

How to use the HiSilicon DVR password generator

The image below shows an example of how to use this software, type the year month and day (YYYYMMDD) that you see on your DVR.

Example. For 07/26/2017  Type:  20170726

Hisilicon DVR password generator

Below is an example of the password generated by the software that should be typed into the DVR, it is unique and valid only for that day.

DVR password generator example

IMPORTANT: This type of password generator software works with DVR models that use an internal chip manufactured by Hisilicon

Dahua DVR password generator

If your DVR is Dahua or model based on that manufacturer, the Dahua password generator may work for you. Just download and test it.

click here to download the Dahua DVR password generator

How to use the Dahua DVR password generator

The images below show an example of using the Dahua password generator, type the year month and day (YYYYMMDD) you see on the DVR.

Dahua DVR password generatorDahua Password generator result

After entering the DVR date, click on “Create PW” and you will see the password created in the “PASSWORD” window. Test this it on your device.

Remember that over the years the chips that are used by DVRs can change and there is no guarantee that it works for all cases.

If you tried this method but it didn’t work, You can find extra information in the article: How to reset Dahua DVR admin password.

H.264 DVR password generator

There are cases where the DVR has an unknown brand, this happens a lot with Chinese models that are manufactured without a brand and sold to third parties that use a name like H.264 DVR for example.

Keep in mind that H.264 is not really a brand but just the name of the a compression algorithm. Read more on the article: How CCTV codec work.

click here to download the H.264 DVR password generator

How to use the H.264 DVR password generator

The images below show an example of using the H.264 password generator, choose the date that you see on your DVR.

H264 DVR password generator H264 Password generator

Important: The fact that your DVR is named as H.264 DVR or something similar does not guarantee that the software will work, as explained above, this is a generic name given by the distributor who purchased an unbranded Chinese DVR to resell to the customers.

Either way, you can try to use the H 264 password generator and see if it works for the DVR model you own.

Excel DVR password generator

There is also an Excel spreadsheet that can generate passwords for DVRs, it works the same way, just put the current date and look at the result in the yellow cell, it works only for dates after the year 2000.

click here to download the H.264 DVR password generator

Excel DVR password generator

Fill in the date in the green cells and hit enter to obtain the password

3. DVR reset by firmware upgrade

DVRs are equipment that have an internal operating system and that can be protected by password, This operating system is called Linux.

The manufacturer provides firmware so that customers can update the equipment for better security and new features, in most cases these updates do not delete the existing password nor reset the DVR, however in specific rare cases the firmware update  can reset to the factory default. 

If the manufacturer has this option available, you can download a file from a website and put it on a pen drive that should be connected to the DVR, after restart the equipment it will read the contents of the pen drive, update the firmware and reset the password to factory default.

Firmware on a pen drive

I’m describing this alternative here because it does exist, but I have to say that it’s really rare to find a  DVR that works that way. You also need to ask the manufacturer for the special firmware or contact technical support.

4. DVR reset by removing the battery

Some DVR models allow you to reset the clock to factory default by removing the battery for a few minutes. This procedure works for some old Dahua DVR models and Z-mode DVR.

Battery removal time may vary, some technicians report that it is sometimes necessary to wait up to 6 minutes for the card to fully discharge and reset the DVR’s clock.

Remove the battery from the DVR shown in the image below:

DVR internal battery

What happens is that the DVR runs out of battery for a while and goes back to the factory default date, such as 1/1/2000 for example, so you can use the DVR password generator to create a new passwords based on this date.

Old DVR date

Make sure the clock has returned to the old date before attempting to use the password.

After resetting the DVR just enter the original password that also varies for each model, for old Dahua DVRs the password can be “000000” 

5. DVR reset using a jumper

For this type of reset it is necessary to open the equipment and physically close the contacts of two specific pins. That work for some Swann DVR models that have some jumpers for DVR reset.

In other cases such as on AVTech DVRs, it’s possible to reset the DVR to factory default by closing the contact of the battery. 

See below an example of DVR reset by using jumpers

DVRs with removable battery

Some models allow this reset by removing the battery and closing the contacts for about 2 minutes. See the picture below:

How to Reset H264 DVRs Password

This method works with some old Swann DVR models, and the factory default password after the reset is 123456.

DVRs with fixed battery

This procedure works on some DVRs with fixed yellow batteries and the factory default password may vary between models. (see the previous table)

DVR Intelbrás bateria soldada

This type of battery is fixed to the board. Use tweezers with the tip on the top of the battery holder and the other end on the bottom, close the contact for about 1 to 2 minutes to reset the DVR.

The idea is to execute the procedure so the date goes back to 01/01/2000 so you try to enter the passwords according to the table you saw before

IMPORTANT: I am not responsible for damages that may occur during the DVR reset process, this procedure is at your own risk.


Old models of AVTECH DVRs can be reset by closing specific pins of the equipment board.

When the DVR is Off, follow these steps:

1. With tweezers close the contact between the pins2. Turn on the DVR and wait until you hear a beep.3. Remove the tweezers while the DVR is still on4. Wait until the DVR restarts5. Use the admin/username and password to log in

The pins that are to be closed vary from one model to another, but usually have the TP nomenclature followed by a number, for example, TP2-TP3 or TP4-TP5 as shown in the images below:



AVTECH AVC-704H Jumper


AVTECH AVC-706H Jumper


After the reset use the factory default user and password: admin/admin

If you have another model from AVTECH, look for these pins that in most cases are TP2 – TP3 or TP4 – T5, the reset procedure is simple and fast, just follow the steps that have been described.

Swann DVRs reset

Some Swann DVRs models have a physical jumper to reset the password, it is clearly marked on the board (PASS-CLR)

Follow the steps below to reset the DVR

1. Close the jumpers with tweezers2. Turn on the power and wait for the DVR initialization3. The DVR starts and shows a login screen4. Use the admin/admin username and password to login

DVR Swann Jumper

If you are looking for information on how to factory reset Swann DVR 4500 and similar models such as the 4500,4900,805o and 8075  read the article: Swann DVR password reset

6. DVR reset using telnet

As I mentioned before, a DVR has a Linux operating system, and on some models there is a way to access this system and delete the file that represents the account and contains the access password.

This process works with DVRs that have a chip manufactured by a Chinese company that accepts a Telnet connection with a standard XC3511 password. Some models known to have this chip are the H264 DVRs:

If your DVR has the login screen like this below, it indicates that it uses this type of chip that accepts the connection via telnet, no matter if the brand is, the internal chip is from the same manufacturer.

DVR with Chinese chipset

Below is another example of a login screen of a DVR that has this type of chip. You can see the word “NetSurveillance” on the left side of the menu.

Generic H264 DVR screen

To reset the password, you must connect your computer to the same network as the DVR and start the procedure. You can connect directly from the DVR to your computer or use a router.

Option 1: Direct from DVR to computer with network cable (UTP)

Computer and H264 DVR connected directly

Option 2: Connecting the DVR to the computer through the router


Make sure the physical connection is OK and devices are using IPs of the same network, as in this example where their IP are and, it is now necessary to use a telnet software to send commands from the computer to the DVR.

On Windows just press the Windows key + R on the keyboard to initiate the run windows and type: “CMD”. See the picture below for details:

Windows plus RWindows CMD

Since this command window will be able to communicate with the DVR, it will respond by asking for username and password and then after entering this information, you will have access to the operating system and will be able to view the files in the directories and folders and also remove them.

To start the process type “telnet <IP of your DVR>” as shown in the image example below:

Telnet Windows

After the connection, a user and password is requested, the screen shown below will appear with the information of LocalHost login: and Password

For localHost login type: root

For Password type: xc3511

Telnet DVR 01

You should see a screen as shown in the image below, which shows the version of the operating system (BusyBox V1.1.2) and a welcome message (Welcome to Tech Monitor)

Telnet DVR 02

At that point you already have access to the Linux operating system, and you can enter commands to read directories (folders), enter those directories, and delete files.

The commands are:

ls: List the directory

cd: Get into the directory

rm: Remove file

Follow the sequence of commands below (without the quotation marks)Enter the “ls” command to read the contents of the directory (folder)Note that there are several directories (folders) in blueIn the next step we will enter the mnt directory

Telnet DVR 03

Type “cd mnt” to get into the mnt directory

Type “ls” to read the content of the directory

Note that there are a lot of directories including the mnt

Telnet DVR 04

Type “cd mtd” to enter the directory mtd

Type “ls” to get into the directory

Note that there are a lot of directories including the mtd

You are going to remove the Account file

Telnet DVR 05

Type “rm Account1” to remove the file

The system will remove the file without asking for confirmation

Telnet DVR 05

Final consideration

Here are some ways to try to solve the lost password problem, if any of the methods worked for you please leave your comment below to help others.

If you have another experience that solved the problem, also leave your comment to share the knowledge with others,

If you still have problems and can not reset the password of your DVR try contacting who sold the equipment or leave your comments here, sometimes someone has already experienced the same problem and can help solve.

It is easier to help if you provide more accurate DVR information.

Saying things like “I lost the password of my H.264 DVR” is not useful since H.264 is actually the name of a video algorithm (CODEC) created years ago 

“H.264 DVR” may be the name of thousands of DVRs that exist in the low-cost market and they may be using totally different internal chips, and therefore have different procedures for resetting the password.

Look for tags in the DVR that say something else about the model, or check to see if there is any information on the screen when it starts.

Open the DVR, you may also find something that is relevant information, or perhaps you can see that the login screen is the same one that is used by another brand, this may indicate that they have an internal chip from the same manufacturer. The more information, the better.

And don’t forget to share this information with a friend

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  1. I just like the helpful information you provide for your articles.
    I’ll bookmark your weblog and check again right here frequently.
    I’m relatively certain I’ll learn many new stuff proper here!
    Good luck for the following!

    • conceptronic
    • February 15, 2019

    Thanx for the password generator, it worked on my conceptronic, however there is a tab system login > system info
    with a few tabs like audio in, alarm in, remote control, enable rs232, a few other options and below that a box checked maintenance functions. this one is checked. Thats locked the dvr functions. it needs a different password.

    • Carl
    • February 15, 2019

    I have chip Hi3520 however the generators not working for me. can you advise?

    1. As a last alternative you can try the App “CCTV Super Password” to gereneate a password for your model.
      You can find this app in the Android playstore.

    • Theo
    • February 19, 2019

    How can i reset a ycx-nvr6104-p4. Starters password was 123456. I took out the battery, the date changed but the beginning password 123456 wont work. Help me pls

    1. Unfortunately, I have no idea which DVR is that you gave me just a bunch of numbers, there’s no brand there.
      It’s a Samsung, Bosch, Hikvision or something similar.

      Please just try what you read in the blog, if doesn’t work please call the people that sold you the unit.

    • boris
    • February 26, 2019

    how can i reset a NI-8908AH-27AX

  2. Ayuda, auxilio , help alguna solucion, para restablecer contraseña para H.264 8CH 1080P Linux CCTV Mini NVR HDMI ONVIF 2.0 with 3G/Mobile/Hikvision o disco de instalación

    • Deri
    • March 4, 2019

    I have qihan dvr 4 channel, I try all the step above but no ones succes. can you help me?

    • Bahar S
    • March 7, 2019

    I have DSL vision DVR with the fixed battery .. Could reset the battery by the instructions given, thank you .. but the password generator couldn’t help me.
    I found teh model on AliExpress and it says that the original password is 12345 .. still doesn’t work! any advise ?
    Thank you

    • Santhosh P
    • March 9, 2019

    Bush Plus H.264 Network DVR prodno: BU-9316VHL
    System: V4.02.R11.24340084.30001-LSX
    forgot system login password. We tried Generating password but nothing worked. This product has no customer care number.
    username: admin
    password hint: default password is ‘NULL’
    Kindly help us reset this device.

    • Brini omar
    • March 9, 2019

    Reste nvr sans fil Juan s/n:k8208-w 18060997

  3. Hello brother I’m looking for password reset solution for zakcom DVR AKZ_6004 please tell me any solution if you have. Thanks a lot.

    • March 18, 2019

    i have chip Hi3520 DVR 312674250d7738c3 however the generators not working for me. PLZ HELP ME

    • Clovis
    • March 18, 2019

    I used telnet process and i manager to default my dvr …tank you for the topic.

    1. I’m glad it worked.

    • tony
    • March 20, 2019

    I have a DVR .. model XDR-H1B .. 8 channels AHD DVR
    that is the information on a sticker on the DVR … not sure who makes this DVR … any help, would be really appreciated .. thanks

    1. Unfortunately, it’s impossible to know every DVR that exists on the planet.
      If there’s no brand, this is just a bunch of numbers.

      It’s like saying “I have a car Model XTZ-1456”

      Sorry, but I can’t help.

  4. Please help me reset password of the NVR mentioned below.
    Model Number: DS-N6004
    SN: DS060914P 160914


    • Elaine P Lakin
    • March 26, 2019

    hi i have a Kare modal no;D3044HH-D the electric went off and the unit is not comming on just flashing blue lite.can this model be reset there is no picture on monitor

    • Aidat
    • March 29, 2019

    Bonjour , je possède un enregistreur de marque SMAR, modèle: SAE3000-A2408MH, et du jour au lendemain le mot de passe qui j’avais changé ne fonctionne plus..savez quel générateur puis je utilisé, sachant que j’ai un serial propre au lecteur qui ne change pas mais j’ai une KEY qui change de temps en temps ( je pense tout les jours ) …je pense que la boîte qui fabrique ça est XIONGMAI, mais pas sur du tout …

    1. Sorry, I don’t speak French.

    • MAHER
    • April 2, 2019

    Please help me reset password of the NVR

    • FR
    • April 5, 2019

    Hi, got a H.264 HDLINE DVRModel R150hybrid 8CH. Can’t acces root login, login failed with xc3511 password… any help
    please ?

    • Francisco
    • April 5, 2019

    Please help me root password didn t match xc3511 on my DVR hdline model RL150 Hybrid 8ch
    any ideas ?

    • Nishan
    • April 5, 2019

    DVR reset using telnet
    Way working well .. Thank you so much giving this valuable Idea.. and I so little mistake there is no write down by text, change directory (cd Config) part.. But It Have On the Dos Command Image.. So Its Happy to sow that. so my dvr remove all unknown Password. now I can log to my DVR.

    Thank you So Much.

    • boris
    • April 6, 2019

    Please help me reset password of the NVR serial no.2018091722800089B

    • Puskár Máté
    • April 11, 2019

    Dear Claudemir Martins,
    I successfully generated a super password for a Xiongmai DVR, and reset it. Via the httpd exploit I checked the ‘/mnt/mtd/Config/Account1’ and ‘/mnt/mtd/Config/Account2’, and the dvr only have two user, admin and default, with the default password hash (for admin “tlJwpbo6”, which is the blank pwd hash). Even so I still can’t login with the default credentials, I got a massage, which is something like: “System under maintenance contact installer SN:”. I don’t sure, this is the exact message, because it is in hungarian and it is a very shitty translation… I found some forum, where suggested, that is an account lock, and I just need to wait 30 min (after the last failed login attempt) to unlock itself, but after 10 hours I still got this message. Do you have any idea, what is the issue, and how can I resolve it?

    Best regards,
    Máté Puskár

    • BASIL
    • April 19, 2019

    Hi i have
    Active vision DVR AHD 5 IN 1
    1080P help me to reset password because i forget.This dvr made from china.please please help.

    • BASIL
    • April 19, 2019

    hi i have Active vision DVR
    AHD 5 IN 1
    1080P .I forget password help to default.please help me.

    • Bodi
    • April 22, 2019

    The password generator works !!!
    Thank you for your help!

Comments are closed.