nrf51822 could no flash via nrfgo studio

[ridvan]

Hi

I'm new nrf devices, I'm trying to flash my device via nrfgo studio but every time got error. Here is screenshut of program:

Edit: J-link commander connection: Thanks

[hassan789]

do you hit "erase all" before you program?

[ridvan]

yes, third picture is output of erase all

[hassan789]

open "J-Link commander" utility and try connecting from there, and post the screenshot... u might have an issue with your debugger...

[ridvan]

I don not have j-link commander, let me install from here :www.segger.com/jlink-software.html

[ridvan]

J-link commander looks ok or am I wrong?