If you encounter an issue where the RGB lights up after inserting it into your car’s USB port, but the device interface doesn’t appear to work, we’ve found that the problem may be related to an imperfect connection between the RGB device’s USB port and your car’s USB port. Based on our experience, we recommend trying the included USB cable to see if this resolves the issue.
If the problem persists, we advise reaching out to our customer support team for further assistance. When contacting us, please provide the make, model, and year of your car, as well as the mobile phone you're using. Additionally, sending a video and/or some photos of the issue will help us understand the situation more clearly and allow our engineers to pinpoint the cause more accurately, ultimately providing you with the best solution for your needs.
Please send the information to support@linkifun.com to contact our customer support team.