• HW Installation Support

  • Rolling back to OS 3.0 for DUDU7?

It took me a very long time to properly install the DUDU7 on my 2009 toyota crown hybrid (gws204), so much so that when I initially received it it was still OS3.0, and now we're at 3.5

Now that it is finally installed, I'm having some serious issue with the audio from DUDU7 dropping out:

  • randomly, some times every 10 minutes, some time every other minute, no idea why
  • In the original car setting (in DUDU OS) there is a simple 3 band equalizer, for some reason the "mid range" is stuck at [-5]. Some times when the audio comes back I can hear it's dialing up or down the mid range to the max/lowest
  • Volume control does not work while the audio is not working
  • Original car CD and Radio seems to work fine

I'm using BSJ CANBUS, along with installation kit there's also a specific box for audio.

These symptoms makes me want to think it's a software issue, and I remember during OS3.0 there was some issue as well but not this bad.

Wondering if there a copy of OS3.0 out there I can roll back to and see if it alleviates my problem.
Otherwise open to any trouble shooting steps as well.
Also open to try other CANBUS and installation kit if there are any out there.

Thanks

    2expensive4me Is the audio from the stock radio and CD working in Vehicle Information?
    If only DUDU audio is missing, you can try turning off DTS in the equalizer settings!

        dudu-lai
        Yeah when DUDU audio is missing the I found CD and radio works during that (not that I've tested for it extensively). I will give it a try and report back, thanks Lai

          I have the same question. Is there any way to go back to Dudu OS3.0?

            • DUDU-Meng

            • Post #5
            • This post is in 中文

            Slavus
            Can downgrade to 3.0
            Just download the previous system and flash it.

                DUDU-Meng To downgrade is not that simple. They need an lsec-downgrade fro lm the Telegram group. Or better you can upload it here. Ask @YAOXILONG

                  • SSlavus

                    • Post #8
                    • Edited

                    @MihaiFlorin @DUDU-Meng @JhonnyD thanks for your replays. I asked wrong question. I know how to downgrade of course, but i would to know, is there any download link for DuduOS3.0?

                    I have a firmware from 05.04.2024 and ongoing until the last one

                      JhonnyD can you share it for me, please?

                          JhonnyD Man, You are great, thanks a lot😎

                              • JhonnyD

                                • Post #13
                                • This post is in Deutsch

                                Slavus Did it work?

                                    JhonnyD I haven't had time to check yet. Should be able to do it next week. I'll let you know.

                                      dudu-lai
                                      After some testing with DTS off, I'm still getting the same problem where sound stops working.
                                      When audio stops working native volume control is not responsive -- when pressed (volume up or down) it will show the volume but will not change it.

                                      Switching to stock CD and radio still works fine, and volume control also goes back to normal. But if I switch back to DUDU at this point audio is still missing. The only way around it I found was to either wait, haven't tried restarting yet but I don't imagine that's helpful.

                                      But in the past few days it does feel like the audio issue is less frequent than last week?

                                      Seems like a incompatibility in the software, because the Aircon is not integrated in the UI. Touch assistant works for now, but sometimes I do find I will need to wait awhile before the touch assistant becomes responsive from startup.

                                      What do you think? Thanks!

                                          Did you install dudu7 and keep the original host or computer?
                                          Dudu7 and both can speak?

                                            7 days later

                                            dudu-lai
                                            Hi sorry wasnt paying attention, thanks for the reply.

                                            Yep sure, give me some time I'll get that for you in the next few days!

                                              DUDU-Meng
                                              Hi, i think so. In the car there is the main cd player then connected to the original screen. I think the CD player is the main computer/host, which is kept. Afterall the cd still works if I toggle to it. Thanks!

                                                23 days later

                                                @dudu-lai @DUDU-Meng
                                                Hi sorry, a few days turned into a few weeks.
                                                Life got a bit busy and this issue was actually pretty hard to capture, but here it is:
                                                [https://drive.google.com/file/d/1xhjynZDrqPhWcAzNnG-Uzz8RCIHI2rZy/view?usp=sharing]

                                                In there I've got a readme, have a look it should explain the context better.

                                                Appreciate all of the hard work!