Flash cancelled

The flash operation was cancelled.

FLASH_CANCELLED

Symptoms

  • The operation reports cancelled — by you or by a dropped connection.
  • After cancelling, the board may not boot or behaves erratically.

Likely causes

  • Cancellation stops programming between sectors, leaving a mix of new and old firmware in flash.
  • The vector table or early code may be updated while later sections are not — an image that partially boots then faults.

How to fix it

  1. Do not run the target yet

    Treat the flash content as undefined after a cancel. A partially programmed image can fault in confusing ways (see the HardFault guide).

  2. Reflash the full image

    Start a new flash and let it complete — this restores a consistent image.

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