nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

Szymon_ek — Wed, 15 Jan 2020 17:04:54 GMT

Hello !

NRF Studio use register:

HKEY_CURRENT_USER\Software\SEGGER\J-Link

but Command Line Tools, use registry

The register HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\SEGGER\J-Link

Szymon

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

Peter — Tue, 29 Sep 2015 08:36:57 GMT

It seems like the path entry can become wrong as well. My registry was right, but I installed everything from scratch anyway, and removed the registry entries in between. After that I had to set the segger path to C:...\JLink_V502 instead of ...502c and reboot.

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

wlgrd — Thu, 28 May 2015 07:29:51 GMT

Thank you for posting this solution, it helped me out after a lot of frustration.

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

nimalhuang — Wed, 21 Jan 2015 17:55:11 GMT

thank you for your solution, that's worked!

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

puz_md — Thu, 11 Dec 2014 11:06:17 GMT

Part of the problem is that these are user specific settings. So every user account could point to a different JLink version. I do not know if this is a desired feature or just a bug. If I find some time, I will also give some feedback about this issue to Segger.

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

puz_md — Thu, 11 Dec 2014 11:02:05 GMT

Hi bart, I was just wondering where nRFgo studio might store the information about JLink. Especially as it worked on the administrator account but not on the user account when I first tried it. A common place for settings would be the registry, but there was no information about JLink stored in the Nordic / nRFgo Studio keys. So I just gave it a try and searched the whole registry for all JLink references (maybe I also searched for Segger) after uninstalling all J-Link drivers and nRFgo Studio. This is when I came across a key that pointed to an outdated install path.

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

bart — Thu, 11 Dec 2014 10:18:00 GMT

Same problem here, your solution worked. I tried multiple reinstalls and installed the newest driver from Segger, same problem. The path was also incorrect. How did you ever find this out?

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

Petter Myhre — Tue, 09 Dec 2014 11:14:55 GMT

Thank you for updating.

RE: nRFgo Studio cannot load JLinkARM.dll, re-installing does not help. What went wrong?

puz_md — Mon, 08 Dec 2014 17:20:32 GMT

I figured out the problem: There is a registry entry for each user, pointing to the JLink installation registry. This registry entry is not updated when new JLink software is installed to a different directory. Update the following registry entry for each user that uses nRFgo Studio, and it should work:

HKEY_CURRENT_USER\Software\SEGGER\J-Link\InstallPath

I hope this may help anybody who has the same problem. It's sad to waste your time on such a stupid bug.