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UpgradePartition.md

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Upgrade Partition

To be able to install further updates you have to update the partition table of the ESP32. Doing so will erase all configuration data. Over The Air update using the web interface is NOT possible!

So make sure you export a backup of your configuration files before continuing.

There are several possibilities to update the partition table:

  • Using Visual Studio Code or PlatformIO CLI

    If you have already used Visual Studio Code or the platformio command you can use it again to install the latest version. The partition table is upgraded automatically.

  • Any kind of flash interface

    If you like to use any kind of flash interface like esptool.py, Espressif Flash Download Tool, ESP_Flasher or esptool-js you have to make sure to upload the provided .factory.bin file. It is important to enter the correct target address.

    Address File
    0x0 opendtu-*.factory.bin

After upgrading the ESP32 will open the intergrated access point (AP) again. Just connect to it using the default password ("openDTU42"). If you are connected, just visit http://192.168.4.1 and enter the "Configuration Management". Recover the previously backuped config files.