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nrf51822 - Segger - Supply Voltage Too Low

I've got my custom PCB design assembled. Attached segger jlink, but it detects only 0.1 V, although Vdd is 3V.

How is the power measured?

What should I read on SWDIO / SWDCLK? Or is there any check I can do?

I have screenshots attached, from segger j-link and nrfGo Studio.

Thank you!

power_problem.nRFgo Studio.2014-01-23_22-29-41.jpg

power_problem.SEGGER J-Link GDB Server V4.jpg

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