Unable to find or open JLinkARM.dll after wrong p20 SWD connection

[Alanarf]

Hi all, 

i have two units of a custom board project that i made.

In the first board, I plugged the pins in the right position as you can see in the figure below, a). nRFgo find the board, and i can program it normally.

However, in the second board, i wrongly connected the pins as you can see in figure b). nRFgo cant find the board even after i put the pins in the correct position. After i clicked the Recover button, it shows the message "Unable to find or open  JLinkARM.dll".

I tried to erase the dk board and the custom board but nothing worked. 

I am powering both externally. My board DK version is PCA10040.

Any ideas of how can i get my board working normally again?



Thanks!

Alanarf

[Alanarf]

i just connected both DK and my custom board in the wrong way, as i put in the image of this ticket.
I verify my power supply always, and it is on 3.3V. The power supply is ok at least.