I tried to connect on the same way, as I have done this in the past 1,5 Year and you explained earlier in some threads.:
The Countdown in the App is necessary to „prepare“ the unit for connection
„...Press Button on a wrong time..“
What means „wrong time“? So it was randomized in the past when the unit was answering and/or working?
Your explanation is a different way to connect to a unit as described in the past:
Establish a connection to BlueCom-Adapter until the blue icon appears in the right bottom corner, connect a battery to your device direct or with a Y-Cable, connect the Y-Cable to BlueCom and press the icon of your device.
In this way I configured Mercury, iGyro 3e and GPS in the past without any problems,.. if the App was working and didn‘t crashed on any reason.
Even from your support team was picture mailed (GPS II Update) how a setup of GPS must work with mobile terminal. No Word to „prepare“ the GPS only with a battery for fast blinking.
In case of Futaba you mentioned it needs up to one minute,..ok. But Futaba was not selected and the Countdown in the App should especially allow GPS Preperation for communication as I understood.
Ok,... i will take care about this way.
But with all respect to your and employees work,... it is a little bit strange