1. If all interfaces (including fonts, pictures, and software interfaces) are blurred, you can manually focus to solve them. Focus step: you can adjust the clarity of the picture by setting-image-picture focus;

2. If individual pages are fuzzy, it may be a page UI problem, so it is recommended to check other pages;

3. If the video is blurred, you can try to switch the video resolution, or the quality of the video itself is poor;

4. If the picture is blurred after the projection is switched to the back interface of the set-top box or the external HDMI device, please check the relevant settings (such as output resolution) of the set-top box or the external HDMI device;

5. If the above cannot be solved, you can apply for after-sales inspection ~