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Development board doesn't appear as a removable drive named "JLINK"

Hello Nordic people

When I plug nRF51 DK into my USB slot, the board doesn't appear as a removable drive named "JLINK". I already installed Common Line Tools with J-LINK V640, Keil uVision5 and downloaded SDK 15.2.0. Is there any other software that I have to install to find the board in Windows File Explorer?

I found familiar topic at https://devzone.nordicsemi.com/f/nordic-q-a/37895/nrf52-dk-does-not-show-as-a-removeable-drive-in-windows-file-explorer

But I can't find this J-LINK Commander. In which directory I have to look for it?

  • Is this a new nRF51 DK, or have you (or your predecessors) had it for some time ?

    Does Windows detect anything at all? What do you see in Device Manager?

    I can't find this J-LINK Commander. In which directory I have to look for it?

    It should appear on your Windows Start menu - under SEGGER:

  • The board isn't new, some guy programmed something on it two years ago.

    Windows doesn't detect anything at all, when I plug the board, there is no new device in Device Manager.

    I find some J-LINK application in Windows File Explorer (Program Files -> SEGGER), but there isn't J-LINK Commander (I can't find any of this applications in Start Menu, but this can be my fault because in work I'm using Windows 10 and I don't know this system very well)

  • Sounds like your predecessor broke it, then.

    As this is a work project, probably the best thing to do is just get a new DK - that will almost certainly cost less than your time faffing about trying to fix it!

    in work I'm using Windows 10 and I don't know this system very well)

    Your colleagues should be able to assist you with that.

  • I reinstalled Common Line Tools with J-LINK and now I can find J-LINK Commander in Start Menu. But when I tried to write a command msdenable, the Commander ask for emulator and I don't know what to do with it. Can you help me with this emulator? If this won't help me to connect with the board, I will assume that my board is broken as you said before, but maybe there was some mistake in instalation process before and maybe thats why I didn't see Commander in Start Menu.

  • The "emulator" it's looking for is a JLink - specifically, the one that is built in on the DK.

    Since you've already said that your PC does not detect anything when you plug the DK in, it should comes as no surprise that the software can't find anything.

    Again, it's probably best to just get a new DK

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