This anomaly applies to PCA20065 v1.0.0.
Symptoms
The debugger probe is unable to communicate with the nRF5340 SoC or nRF9151 SiP through the debug board interface connector (P9).
Conditions
The Nordic Thingy:91 X current measurement and debug board (PCA64165) is inserted into the P9 connector on the Nordic Thingy:91 X v1.0.0, and the 20-pin SWD and trace connector (P4) on the Nordic Thingy:91 X current measurement and debug board is connected to the debug probe.
Consequences
Programming, debugging, or tracing through the debug board interface connector (P9) is not possible.
Workaround
Use the 10-pin programming connector (P8) for programming and debugging.
Connect both the 10-pin programming connector (P8) and the 20-pin SWD and trace connector (P4) on the Nordic Thingy:91 X current measurement and debug board to the debug probe for tracing.
This anomaly is fixed in Nordic Thingy:91 X v1.1.0.