Hi Diana,

Sadly, I’m not able to reproduce issues you describe. I did a smoke test of examples that you mention (current master with nrf52840 pca10056), and shell worked on every single one out-of-the-box, no extra configuration needed. Therefore I’m afraid the problem lies somewhere in your local setup.

From my experience, I can tell  that I have occasional issue when connecting to pca10056 from my virtual machine (VMWare running Arch Linux). The problem I observe is that I can see the output from the board (from the logger), but cannot provide any input. For my case, switching board back to native Windows and power cycle on a board helps (no need to re-flash), so I assume it is a VM/JLink issue. Perhaps you observe something similar (but you mention that you can see local echo?). Maybe it would be a good idea to check examples with different terminal? I use PuTTY (speed 11520).  

Best regards,

Robert