Yes, then it works well.

For testing purposes I took some images and fonts out of the firmware to reduce its size to 3.9MB, Then it works as well.

Thanks a lot, Ibernstone!

Is there any chance to get around that limit of 4MB. Seems the binary file is written to partition app1, however the contents of ota_data are not updated. When trying to manually overwrite them, they always revert to factory settings.

Update: OTA Works with Small Binary, Fails with Larger Binary After further testing, I found that the OTA update process works perfectly when I upload a smaller firmware binary file (571 KB in size). The OTA update is applied correctly, and the device boots from the new partition ota_1 (=app1) as ex...

I'm working on an ESP32-S3-WROOM-2-N32R8 (32MB Flash, 8MB PSRAM) project using PlatformIO in VSCode with the Arduino framework. My goal is to implement OTA updates, but I'm running into an issue: The ESP32 always boots from ota_0 (partition app0), even though the OTA update to ota_1 (partition app1)...