Error: Flash Download failed - "Cortex-M0"

[Webmobi]

We are trying to dump DFU code using Keil into nrf51822 IC. We are getting error, we are using SDK12. we tried many solutions provided in devzone, we were not able to solve it. We tried devzone.nordicsemi.com/.../ and devzone.nordicsemi.com/.../ solutions. Suggest any other solutions.

[Jørgen Holmefjord]

Which project from the SDK are you trying to flash? Have you erased the board using nrfjprog/nRFgo Studio, to make sure there is no softdevice present on the board?