nRF connect for desktop BLE & DTM apps opens with a blank window

[eyalasko]

Hi,

Like many posts before I'm facing blank white screen when trying to run nRFCOnnect for desktop (3.4.1) BLE app (2.4.0)

Tried to:

• Restart PC
• Uninstall-reinstall 3.4.1
• Uninstall-reinstall 3.4.0
• Uninstall-install latest nrf command line tools-reinstall (link)
• Use nRF52840 (PCA10056) dongle
• Use nRF52832 (PCA10031) dongle
• Use another fresh nRF52840 dongle

all to no avail....

Same blank screen occurs on all other NRFConnect's apps: DTM, RSSI viewer, Programmer but NOT with the toolchain manager... implying it stems from (probably) the same root cause (jlink driver? graphic library?)

Any advise ?

[Kenneth]

Make sure that you are not using any terminal window/tools that are accessing or claiming the COM ports on the PC. I have seen that cause the windows to hang (white screen). You can try to press ctrl+R to refresh the white screen.

You may try to uninstall segger j-link tools and nrf command line tools also, before installing nrf connect for desktop again. You can also try to install the latest nrf command line tools (that also bundles segger j-link) to see if that helps.

[eyalasko]

Thanks for the prompt response.

seems that your advise "Make sure that you are not using any terminal window/tools that are accessing or claiming the COM ports on the PC" works

Thanks again