Hi! That's an interesting setup you have with your ESP32 board using LTE for internet connectivity instead of Wi-Fi. When it comes to OTA updates in this scenario, there are a couple of considerations to keep in mind. Since your phone and the ESP32 are not on the same network, you might need to ensure that your OTA update mechanism can reach the ESP32 over the LTE connection. This might involve configuring your network settings appropriately to allow for OTA updates over cellular data.
Additionally, depending on your OTA update implementation, you might need to handle any potential issues related to network stability or bandwidth limitations that could arise when using LTE compared to Wi-Fi.
As for your code and configuration, in most cases, you should be able to use the same OTA update code and configuration as you would with Wi-Fi connectivity. Just ensure that your OTA update process is robust enough to handle updates over LTE.
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