Attempting to program a softdevice hex file using Keil uVision and an ST-Link V2, I get:
No Algorithm found for: 10001000H - 10001013H
This is in the UICR (User Information Configuration Registers), which should be programmable like code according to the nRF51 series reference manual. I tried adding another nRFxxx algorithm, setting start to 0x10001000 and size to 0x14. Now I simply get "Flash download failed".
How to program a softdevice with Keil uVision?
Cheers
