Download the TunECU software on the device you'll be using to interface to the ECU.
Play around with it a bit - three main pages - you'll be using the test page mainly.
Going to the bike, best if you have a charger plugged in to keep the battery topped off.
Removing the left side cover should expose the DBII connector - you'll recognize it as the mate for the large end of your cable that just arrived.
Turn on the ignition - no need to start at this point.
Connect the cable at the DBII end, and the indicator light showing that it is receiving power should light.
Plug the other end into your Android device, and launch the app TunECU.
If all goes well, the app should recognize the cable, and soon, start communicating with the ECU.
There is a green circle on one of the pages indicating that communication has been established with the ECU.
When you get that far, come back for next steps.