Allora per chiunque fosse interessato, finalmente grazie ad Exo, che mi ha dato l'imput per l'hard reset e poi cercando ho scoperto la formula:
SONO RIUSCITO AD ABBINARE IL CARDO Q2 COL TT RIDER 1
ecco la formula:
Thank you for contacting the Cardo Systems Support Center regarding our products.
1. Perform FULL PAIRING RESET (not Intercom Pairing reset) to all Q2’s.
1. With the Q2 powered on press and hold the control button until the unit begins to flash red and blue.
2. With the LED flashing red and blue, press and hold the volume up button for 5 seconds until the unit flashes purple and turns off.
3. You have now reset your unit.