Attempted to re-pair my zumo 550 with a Sena SMH10-11 previously upgraded to V5.0 firmware. Got the same symptoms.Well I upgraded to V5.0 from 4.3 today but no joy. It would not pair with my Zumo 550. It did pair with my wife's SMH10 thru intercom, did pair with my iPod no trouble, but not the Zumo. It would say phone connected for a millisecond then say phone disconnected. I even tried multipoint pairing to just get the HFP to pair up with the Zumo as a headset, but no joy. So I went back to V4.3 and everything paired up perfectly.
I hope it's a fixable bug and the next version works.
I'll give that a try too. Thanks.I see that Sena has added a patch to specifically address compatibility with Garmin GPS's, so those of you with issues pairing to your Garmin might try reloading V 5.0 to get the new patch.
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