Problem phenomenon 1: once the box is connected to the power source, it remains in the first interface, for example, in the "create box" interface, where access to the system is not possible。Solutions: the phenomenon can be restored by a general power outage and, if the problem remains after the power outage, can be accessed into the recovery reset box or the ucd brush. If the replacement has not been successful or if the problem remains,

(2) diagnosis of typical problems1. Unbalanced layout of keywords: 76 per cent of the site's main keyword selection is the same as the competition2. Lack of localized information: only 29 per cent of the website presents complete business qualifications and local service coverage3. Technical structural deficiencies: a mobile end adaptation rate of less than 45 per cent, with page loading speed exceeding 3 seconds by 62 per cent4. Content update f