Error: Flash Download failed - "Cortex-M0"

[Abhimanyu K K]

Cannot flash DFU example program.

...

I don't know the steps for DFU. Please help me to do a DFU-OTA project considering as a beginner.

[tesc]

Hi,

Please follow the descriptions under the Testing section of the BLE Secure DFU Bootloader documentation. If you use the nRF51 then you must use the Secure DFU Bootloader in SDK version 12.3, as SDK v12.3 is the latest version with nRF51 support.

Regards,
Terje