diff --git a/embedded-workshop-book/src/SUMMARY.md b/embedded-workshop-book/src/SUMMARY.md
index be8ba33..37d55ce 100644
--- a/embedded-workshop-book/src/SUMMARY.md
+++ b/embedded-workshop-book/src/SUMMARY.md
@@ -68,6 +68,7 @@
     - [`dongle-flash` is not working](./troubleshoot-dongle-flash.md)
     - [Dongle USB functionality is not working](./troubleshoot-usb-dongle.md)
     - [`cargo run` errors](./troubleshoot-cargo-run-error.md)
+    - [`no probe was found` error](./troubleshoot-probe-not-found.md)
     - [DEPRECATED - `nrfutil` setup](DEPRECATED-nrfutil-setup.md)
 - [Appendix](./appendix.md)
   - [Using GDB](./gdb.md)
diff --git a/embedded-workshop-book/src/troubleshoot-dongle-flash.md b/embedded-workshop-book/src/troubleshoot-dongle-flash.md
new file mode 100644
index 0000000..1ca56ac
--- /dev/null
+++ b/embedded-workshop-book/src/troubleshoot-dongle-flash.md
@@ -0,0 +1 @@
+# dongle-flash is not working
diff --git a/embedded-workshop-book/src/troubleshoot-probe-not-found.md b/embedded-workshop-book/src/troubleshoot-probe-not-found.md
new file mode 100644
index 0000000..c5332b1
--- /dev/null
+++ b/embedded-workshop-book/src/troubleshoot-probe-not-found.md
@@ -0,0 +1,11 @@
+# `no probe was found` error
+
+You may encounter this error:
+``` console
+Running probe-run --chip nRF52840_xxAA target/thumbv7em-none-eabihf/debug/hello
+Error: no probe was found
+```
+
+- It may be caused by the micro-USB cable plugged on the long side of the board, instead of the short side.
+- Check that the board is powered on. 
+- Check that your cable is a data cable and not power-only.