My guess is you left it on and it's dead. Take it off and charge it. Is the small red light on when you turn it on? When a dongle is fully charged the small red light turns blue....just like the headsets. I've accidently left my dongle on and it goes dead without the bike running. Good luck::thumbup:
BTW: Manual has a lot to be desired :yikes::yikes::yikes:, here's the pairing instructions from the SENA Tech I contacted:
Hi Jim,
The SM10 connects Via A2DP, your smart phone (android or iOS) has A2DP and HFP, the SMH10 has only 1 A2DP and 2 HFP channels.
You can pair your SMH10 to the SM10 via Phone Pairing, first delete the Sena Pairing on the phone first. Then
1 Power on SMH10
2 Hold the Phone button (small button on the back) for 5 seconds until you hear phone pairing
Then Set SM10 to headset
#1 pairing
1 Power on SM10
2 Hold Center button for 5 seconds until Blue Light Flashes
And wait for the headset to pair with the SM10
Then Pair Smart Phone to SMH10 via Multi Point Pairing
1 Power On SMh10
2 Hold Jog Dial button until you hear Intercom Pairing then release and with in 2 seconds press the Small Phone button on the back. you will hear her say "Multipoint Pairing"
Then on phone perform a scan or search for device and when you see SMH10 on the phone select it to begin the pairing.
Now you will have SMH10 paired with SM10 and Smartphone, however you will not be able to listen to music on the Smartphone only phone calls and all media will come from SM10, however you can still connect phone via 3.5mm to SM10 to listen to music on your phone along side another other media you wish to connect to the SM10.
Regards,
Wahyit Cheung