Download instructions for use:1. Usage environment: The smart air conditioner needs to be connected to the power supply, and the air conditioner can be connected to the smart service through the cooperation of a smartphone and a wireless router;2. Operation steps:Step 1: Connect the 4-wire 4-hole plug/connect the 4-pin socket of the air conditioner indoor unit (open the front panel of the indoor unit and there is a reserved 4-pin socket, it must be turned off before plugging in the module)Step 2: Use the QR code on the mobile phone scan module to download the APP.Step 3: Open the successfully downloaded APP and click Network Settings to configure network access;Step 4: Register a user name and click to add WiFi intelligent control module.Step 5: To add equipment, scan the barcode on the indoor unit and follow the pop-up interface prompts to connect the air conditioner to the network; this step cannot be wrong (many buyers scan the barcode on the module/useless)For detailed operating instructions, please view the novice tutorial in the APPSmart air conditioners other than Kelon and Hisense cannot be used.Most smart air conditioner panels are marked with a WiFi logo.Or before taking pictures, open the panel and see if there is a 4-hole or 4-pin connector inside.If there is no reserved 4-hole or 4-pin connector, the air conditioner is not smart/cannot be used.