When capturing traces, you may notice a message printed about detection of protocol type:
<syntaxhighlight> INFO - SimpleSerial: protocol V1.0 detected INFO - Capture completed. INFO - SimpleSerial: protocol V1.0 detected INFO - Capture completed. INFO - SimpleSerial: protocol V1.0 detected INFO - Capture completed. INFO - SimpleSerial: protocol V1.0 detected INFO - Capture completed.</syntaxhighlight>
This happens with the basic SimpleSerial protocol. There are two versions of this protocol: V1.0 does not have acknowledgements, and V1.1 does. By default the system will look for an ACK to a basic message, and if no ACK is found falls back to the V1.0 protocol.