For CarlinKit 4.0 /CP2A
When you have this situation: iPhone 12/13/14 can't connect to the product/can't search the WiFi of the product (WiFi name: Autokit-****, or named after the brand of your car, password 12345678), but iPhone 7/8/9/10/11 can connect successfully.
You can
1, use iPhone7/8/9/10/11 to connect to the product's WiFi
2, use a laptop that can connect to a 5G signal to connect to the product's WiFi
After the WiFi is successfully connected, you can use your browser to visit 192.168.50.2 and upgrade the firmware to the latest version on the webpage. In the latest version of the webpage, switch to WiFi frequency 2.4 / 5 after trying iPhone to search the product WiFi.
If you still can't connect, please set the startup delay to 1 or 3.