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 APP Smart 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.