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  • Please release a 2K DVR app for universal Android head units.

I have a cheap, poor quality USB DVR from another company, and I use an app called "HD DVR" (uCarDvr) with that camera. This HD DVR app appears to be almost identical to the older version of DUDUAUTO's app for older USB DVRs. I removed this camera from the head unit and uninstalled the HD DVR app.

I bought a DUDUAUTO 2K DVR and installed the "DVR 2K" (bdDvr) app. I proceeded with the installation of the DVR 2K app and also did the automatic updates.


However, the "ADAS Settings" tab does not appear in the settings menu. Of course, the ADAS function does not turn on.

The camera preview is displayed, but the coordinates and speed are not displayed. Date and time are displayed correctly. This is true not only in the garage but also outdoors where the sky is visible.


Next, I installed the HD DVR app again. Then when I start the DVR 2K app, a message appears prompting me to delete the old HD DVR app, but I ignored it. Then the "ADAS Settings" tab appears in the settings menu of the DVR 2K app. However, even if I turn on the ADAS function, it immediately turns off, so ADAS does not work. So, if I delete the cache of the DVR 2K app and the HD DVR app and the storage (data) used by the app and start the DVR 2K app, the ADAS will remain on for a while. However, the DVR 2K app will crash after a while after calibration. Until the crash, the ADAS function will work and the warning sound will be played normally. The coordinates and speed will still not be displayed.
Next, when the HD DVR app is started with the DUDUAUTO 2K DVR camera connected to the head unit, the HD DVR app will run for a long time without crashing and the ADAS will also function normally. This app does not have a warning voice function and a beep sound will be heard. Almost all functions can be used without problems in the HD DVR app, but the coordinates and speed will still not be displayed.
I deleted the HD DVR app again, and the "ADAS Settings" tab disappeared from the settings menu in the DVR 2K app, and all ADAS functionality was lost from the DVR 2K app.
In other words, it can be said that ADAS will not function in the DVR 2K app unless there is a USB DVR app (from another company) with the same ancestor.
In conclusion, the app included with other USB DVR cameras works better with the DUDUAUTO 2K DVR camera than the 2K DVR app.

The 2K DVR app does not seem to support headsets other than DUDUAUTO and one other brand, so please provide an app that works with other head units. I suspect that the DVR 2K app is just a cool UI made by removing part of the backend from a general Chinese USB DVR app.

In addition, not only do the app not display the coordinates and speed in the bottom left of the preview screen, but the coordinates and speed were never recorded in the video recorded on the camera's TF card.

    Adas is fully useless so don't worry about it. It's just a video recorder. It didn't react on pedestrians. It useless in traffic. It's low quality camera.

    I would not say it is useless, but I consider it as a gadget. The name ADAS is commonly known, but in this case it should not be called ADAS which means "Advanced Driver Assistance System".
    In this case it is a "Driver Warning System". And it is not 100% reliable. Much less than 100%.
    But as such it can still help by giving you warnings, but do not rely on it and don't get distracted by it.

    I also have other Chinese USB DVRs, and I know that the simple ADAS for general Chinese DVRs with the same lineage, including the DUDUAUTO USB DVR app, only respond to the distance from the car and lane. I think it would be more useful if these ADAS responded to pedestrians, motorcycles, or traffic signals, but it would require additional processing power from the head unit. I know that some DVRs and mirrors with built-in ADAS have systems that address these, but I have heard that their accuracy is not impressive.
    A poor ADAS would not be extremely beneficial, but I don’t think it would be a disadvantage either.

    While I can't say for certain that the camera on the DUDUAUTO 2K DVR is high-performance, I believe the HDR works well, making it more resistant to backlighting compared to cheaper Chinese USB DVRs.

    Gatolab Вам необходимо обновить сам 2К регистратор. Инструкция по обновлению прошивки в архиве с прошивкой. (Не приложение, а именно 2К регистратор)

    fw-cardvr-335-0018-f-duduauto.7z
    2MB

      My camera's firmware version is CarDvr_335_0.0.17_FDUDUAUTO20240325_01, so the file you shared seems to be newer than that. Thank you.
      What are the updates?
      It seems that I do not have permission to download files from this forum.
      A pop up saying 'You are not allowed to download files' appears.

        Gatolab you can search for that file in dudu telegram. Should be easy to find it there by name.
        As I can see the size of firmware for this dvr(4Mb), everything is calculated by dvr app on the headunit.
        Maybe my settings(everything turned on and starts at 30km/h) are wrong or I need to update firmware on dvr, but only sound notifications I get from it when a car Infront starts moving. I find that useless.

          I already searched Telegram. When I looked for "cardvr," it seems that version 335_0.0.17_F is the latest one available, and I couldn't find 335.0.0.18_F shared by Chubaka885. Thank you.

          The HD DVR app worked stably with the DUDU 2K DVR camera, but the ADAS warning sound was only a BEEP. Since the DVR 2K app offers both a BEEP and voice alerts for ADAS warnings, I had been hoping to use the DVR 2K app instead.

          Up until now, I had been enabling the ADAS functionality in the HD DVR app to display ADAS on the DVR 2K app. However, enabling the ADAS function directly in the DVR 2K app caused frequent crashes, making it impractical to use.


          I suspected that the DVR 2K app was missing some backend functionality necessary for it to operate on a generic Android head unit, and it seems that the missing piece was the "DUDU DVR Service."

          When I installed the DUDU DVR Service, the HD DVR app was automatically uninstalled, which suggests that the service includes alternative functionality to replace the HD DVR app. If this assumption is correct, I would like the DUDU DVR Service app to be bundled with the camera for users of generic head units that are not DUDU head units.

          Since I have not driven with the DUDU DVR Service installed yet, I have not confirmed whether the ADAS function in the DVR 2K app now operates stably and correctly. However, during ADAS calibration, the crosshair now displays correctly at the center of the screen, so I am optimistic.

            Gatolab Permissions have been updated，Try again please

              Gatolab For using the DUDU 2K DVR on a generic Android host, you need the universal version of the APK.
              DUDUDVR_2K_universal.apk

                Gatolab разрешения исправлены, попробуйте загрузить снова.

                  Thank you, YAOXILONG and Chubaka885.
                  I will start using the files you have provided from tomorrow onwards.

                  I am reporting the result of installing the DUDU DVR Service to enable full functionality of the DUDUAUTO 2K DVR on a general Android head unit, which is not running DUDU OS, and the DVR 2K app.

                  All functions, including ADAS, worked stably and properly. When I selected the voice alert option in the DVR 2K app’s ADAS, it started to give voice warnings in my country’s language correctly. My head unit uses Google’s TTS for this. Since I have never used Toppal, I am not sure whether voice alerts will work with Toppal.

                  Additionally, the coordinates and speed, which had never displayed anything other than 0 before, are now being displayed correctly. These coordinates and speed are also correctly included in the recordings on the TF card of the camera itself.

                  I just tried DUDUDVR_2K_universal.apk.
                  It prompted me to install the DUDU DVR Service.
                  However, after installation, the displayed UI was the same as the HD DVR.
                  It seems that the speed display is incorrect.

                  • Doki replied to this.

                    I just tried the firmware FW_CarDvr_335_0.0.18_F_DUDUAUTO.
                    The update instructions mentioned checking the LED blinking pattern, but I couldn't find where the LED is located on the DUDUAUTO 2K DVR device.
                    For now, I wrote the firmware file to a microSD card, inserted it into the DUDUAUTO 2K DVR, powered it on, and waited for one minute before checking.
                    I confirmed that the version number was updated.
                    However, I am not sure what changes were made. I would like to have a changelog.
                    Thank you.

                      Gatolab You must understand the firmware of the 2k recorder is not developed by Dudu team. Dudu team if we can say so, only sells it. The firmware updates are provided by the manufacturer of the recorder. And if they don't give a change log, Dudu team cannot provide one to you.

                      • lDDl replied to this.

                          MihaiFlorin if dudu selling it under their name then they are responsible for it and can't refer to third party company to avoid any questions.

                          For example I have few questions about it:
                          Also why this dvr cannot be updated through app?
                          Does it have any other notifications except that the car in front start moving? Because I turned on everything but have only this.
                          Why we can't see SD card from headunit file browser?

                            I tried uploading a video to this forum, but even smaller files than the displayed upload limit are actually rejected.

                            https://www.youtube.com/watch?v=mlxEdWiba0E
                            The voice is in Japanese.

                            In the DVR 2K app, the Lane Departure, Forward Collision, and Front Car Start alerts all worked with proper voice notifications.
                            When the sensitivity is set to High, there are so many warnings that it becomes almost annoyingly noisy.

                              Gatolab is there any chances after firmware update on dvr? Will try to test my after update