MihaiFlorin kataraman What type of device is it? 7870? 7862? In order to help you we need a screenshot of device info like here. https://forum.dudu-auto.com/d/14-how-to-give-correct-feedback-on-bugs If your device is a 7862 and you installed the firmware without prior registration in the beta program, this is the cause. Please read here on how to apply for the beta testing and the registration. https://forum.dudu-auto.com/d/110-faqcasto-zadavaemye-voprosy/6. You can use Google translate.
MihaiFlorin kataraman The device is dudu 5 kataraman This doesn't help me or you. Where have you bought it? Contact your seller. I have asked you to provide some pictures. We are not fortune tellers. Press on the clock, disconnect your unit from the internet and you'll be able to provide the pictures that I asked. Until then I cannot do nothing for you. Please do not be shy with providing details .