nRF Connect Device Manager upgrade fails where nRF Connect for Mobile succeeds.

[zachTrio]

I've been having issues with implementing this library, but have found that the issue persists outside my implementation, and in fact happens with both the version in the Playstore as well as local builds of the 'sample' folder.

nRF Connect Device Manager often hangs when it goes to upload, eventually resulting in a disconnect error.

This happens 90% of the time, occasionally succeeding which makes this more confusing.

I'm assuming there's some timing issue with the bootloader or something, but that is out of my control.

I've tried all kinds of combinations of window capacity and memory alignment, no luck.

Any ideas on how to proceed?

[philips77]

Hello,
Sorry for not answering earlier.

Could you tell more what happens when it hands? Do you get any error? Does the device disconnect?
What nRF Connect SDK / Zephyr version are you using? What is the bootloader mode? Perhaps you could take a screenshot of the app when it hangs?
In top-right corner in the app you'll find an icon with the magnifying glass - it leads to nRF Logger app. Please, install it and repeat the DFU. When if hands, tap the icon to view logs. Please, share them here.