James L 760e92f186 Fix flash address detection: use bootloader magic byte, not file size ...

The merged binary (1,257,328 bytes) was below the 1.5MB size threshold,
causing it to be misidentified as app-only and flashed at 0x10000 instead
of 0x0. This corrupted the flash layout and bricked the device.

Now checks for ESP32 bootloader magic byte (0xE9) at offset 0 to reliably
distinguish merged binaries from app-only binaries, regardless of size.

2026-02-22 21:24:06 -05:00

16 KiB

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