SEGGER J-Link Commander V6.40 (Compiled Oct 26 2018 15:06:29)
DLL version V6.40, compiled Oct 26 2018 15:06:02

Connecting to J-Link via USB...O.K.
Firmware: J-Link EDU Mini V1 compiled Oct 26 2018 12:05:31
Hardware version: V1.00
S/N: 801005893
License(s): FlashBP, GDB
VTref=3.281V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: NRF51422_XXAC
Type '?' for selection dialog
Device>?
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>4000
Device "NRF51822_XXAA" selected.


Connecting to target via SWD
Cannot connect to target.
J-Link>