You can find the garage door brand on the garage door opener. If you cannot determine the model and year, try all the pairing options for that brand. One of them will work.
How do I determine the garage door opener brand, model, and year?
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The first user needs to follow the first time setup steps to setup the GDB remote device. Other users can follow these steps to get access to GDB device. 1.
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1. Is your phone connected to GDB2_xxxxxx when you fill the SSID and password? 2. Does your router support 2.4G WiFi signal? Make sure the SSID you provide is for