Can't flash nRF52840 dongle with nRF Connect Programmer

[sonus89]

Dear Nordic Team,

I can not flash my nRF52840 USB dongle with the nRF Connect Programmer application.

The window looks like this:

Erase / Read / Write functions on the right are greyed out.

As you can see the hex file contains a software which begins at 0x00026000 HEX 
Is it a problem? Suggested begin value is 0x00001000

How can I change the begin value?

I am trying to flash my USB dongle with nRF Connect programmer because SEGGER Embedded Studio neither worked for me.
I received an error message like:

1. I select Build & Run
2. I receive this message:

3. When I select YES ( or NO ):

So... How can I flash my USB dongle?

Thank you very much!

Matthew

[awneil]

The dongle doesn't have a J-Link on it - so you need a separate J-Link (possibly the one on a DK)

[sonus89]

I don't really understand. Sorry.
What do you mean by "separate J-Link" ?
What is a DK ?
Can you please give a more detailed description?
Thanks!

[Bjørn Kvaale]

A Segger J-Link is a component used to be able to flash nRF51/2 devices. The DKs (development kits) have an integrated Segger J-Link, while the dongle does not have this. Most likely, you have forgotten to upload the softdevice to the Programmer application. As soon as you upload the softdevice, in addition to the HRS application, you should be able to click on the Write button to program the 52840 dongle.