I need to use a Mobile App to send SSID/Password to Esp. I can do it two ways - one using Wifimanager library and second by using Espressif's smartconfig but the ESP's Smartconfig is very unreliable in my limited experience with it and hence, I would like to explore another way.
Would it be possible for this task to be accomplished via UDP broadcast from mobile app without Esp connecting to any local wifi? If yes, can anyone guide me to a resource on this or any hints which can help me?