ESP32 Forum

Hi,

I am trying to figure out if it is possible to change the sdkconfig that was flashed onto a device by using OTA. According to a comment made in another thread, recent ESP-IDF versions will reconfigure the SPI flash when the app starts after an OTA update.

However based on my tests, new sdkconfig parameters do not take effect after an OTA update. The device runs the new program, but uses the old sdkconfig.

Is there a way to update the sdkconfig without needing to re-flash the device?

sdkconfig is not something you are updating with OTA. With OTA you can update firmware/app and eventually bootloader (not recommended), but changes you will do in sdkconfig will affect how firmware/app, not all changes thou.

What specific setting in the sdkconfig did you change? What version of esp-idf are you using?