How to reset password for a samsung SDE-3004N DVR home security system. There is no remote for the system and have lost the password.

Samsung Security DVR Default Password

For nearly all Samsung Security DVRs, the default password is 4321. If it hasn't been changed since setup, then you can just use that to access the DVR. The default password is included in the reset procedures for completeness. If you have changed your password or access code for your Samsung Security DVR since it was setup, or if you changed it during the initial setup, use that password in place of the default password. The password will be the latest password that was set on the DVR. If no password has ever been set, then it will be the default.

Steps to Reset your Samsung Security DVR

Samsung Security DVR Reset Procedure #1

1. Reset the unit to factory by pressing both [MODE] and [PTZ] button for 5 seconds
2. Then enter the 4321.

Samsung Security DVR Reset Procedure #2

1. Reset the unit to factory by pressing both [MODE] and [CH2] button for 5 seconds
2. Then enter the 4321.

Samsung Security DVR Reset Procedure #3 This reset will work on Android based DVRs only. All steps are performed on the device itself.

1. Turn the device Off
   Wait 2 minutes
   Press and hold the following buttons
   • POWER,
   • HOME
   • VOLUME UP
2. The unit should power on. Once it does, you can release power.
3. Use the volume UP and Down buttons to select "Wipe/Factory Reset" from the recovery menu.
4. Activate the reset using the HOME button.
   When the DVR goes through it's setup again, it will be at factory defaults. The password will be 4321.

Samsung Security DVR Reset Procedure #4 This reset will work on SDR models. It may also work on other models.

1. With just the cameras showing, press the following in quick succession using the remote:
   • Freeze
   • Alarm
   • Freeze
   • Alarm
   • Freeze
   • Menu
   • Enter
2. Make sure you press them quickly, one after the other. If it doesn't work the first time, try doing it several times. It can take many tries to get the timing right. If/when it works, you should get a screen that gives you the option to reset.

Samsung Security DVR Reset Procedure #5 This reset will work on SDR models where procedure #4 failed. It may also work on other models.

1. Press the DVR Button to place the system in DVR Mode
2. Press:
   • Freeze
   • View
   • Return

As with Procedure #4, you may need to press Freeze, View, and Return in in quick succession a few times to get it to work. The timing can be tricky.

Samsung Security Reset Procedure #6 Courtesy Sergio Ayala
To factory reset the SDR-B74301

1. Reboot the DVR
2. Once the DVR has rebooted, enter the following sequence on the remote:
3. UP, RIGHT, 5, 3, 3
4. You will be prompted to do a factory reset. Confirm

This has been confirmed by several people. Thank you, Sergio! If this works for you, please thank him in the comments below.
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