Connecting a PPK Kit

[Marcos1234]

Hello everyone.

I want to familiarize with The Power Profiler Kit. I've installed proper software and been trying to connect to the device but every time I receive the same errors. 

2019-07-05T10:27:20.476Z INFO Deselecting device
2019-07-05T10:27:20.481Z INFO PPK closed
2019-07-05T10:38:00.755Z INFO Validating firmware for device with s/n 000682335096
2019-07-05T10:38:00.757Z INFO PPK closed
2019-07-05T10:38:04.199Z INFO Opening device with s/n 000682335096
2019-07-05T10:38:04.201Z INFO PPK opened
2019-07-05T10:38:04.201Z INFO Initializing the PPK
2019-07-05T10:38:07.900Z INFO SEGGER serial: 682335096
2019-07-05T10:38:07.900Z INFO SEGGER speed: 2000 kHz
2019-07-05T10:38:07.900Z INFO SEGGER version: J-Link OB-SAM3U128-V2-NordicSemi compiled Jan 7 2019 14:07:15
2019-07-05T10:38:13.901Z ERROR Failed to start the PPK.
2019-07-05T10:38:13.901Z DEBUG
2019-07-05T10:38:13.901Z INFO Deselecting device
2019-07-05T10:38:13.904Z INFO PPK closed

My OS is Ubuntu 18.04. There have been the moments when downgrading to 2.5.x version solved my problems, but mostly I end up with error like that. 

Do you know how to solve it?

[Marcos1234]

I've noticed that LED1 on the nRF52DK doesn't blink, too.

[Bjørn Kvaale]

Could you please try upgrading to nRF Connect v3.0.0 (see link). You cannot upgrade via the app. You will need to use the link provided instead. Did you prepare everything like stated in the documentation?

[Marcos1234]

I've upgraded the nRF Connect to the v3.0.0 version, because Power Monitor requires the most up-to-date version. I did everything like in the manual. I tried to run the nRF Connect as root but it still doesn't work and I receive the same error.

[Bjørn Kvaale]

This case should be able to help you.

[Marcos1234]

It works. I have updated the drivers. I downloaded them from here