drive.google.com/drive/folders/1BDK2WwVSdn-Gy9EqYcFrMxAT7QqO5s_Y?usp=sharing Because I am not a professional customer service, (please forgive our different division of labor and differences in functions) but this should be able to help you.
Please read the manual (should be in the box) or online manual carefully, there should be detailed procedures in the manual. Mainly check the sound settings in the main menu and navigation menu. If it still cannot be solved, please find after-sales personnel to replace the product.
Does this work with an iphone that doesnt have a headphone jack? Wanting to buy the bluetooth 886 version.
How do you dim the screen at night. Even in night mode it's to bright.
drive.google.com/drive/folders/1BDK2WwVSdn-Gy9EqYcFrMxAT7QqO5s_Y?usp=sharing
Because I am not a professional customer service, (please forgive our different division of labor and differences in functions) but this should be able to help you.
Does it have a traffic feature?
I'm sorry, I don't quite understand what you mean, could you describe your problem in detail?
Ours has no sound, what could be wrong?
Please read the manual (should be in the box) or online manual carefully, there should be detailed procedures in the manual. Mainly check the sound settings in the main menu and navigation menu. If it still cannot be solved, please find after-sales personnel to replace the product.