just to let yall know there is a firmware update for the SMH10 for those who have one and for those that santa mite have one for...
Tis version 5.1.1 and Ive installed with no probs found up to yet... think its a lot to to with the connection to the 20s and a bluetooth version upgrade ... You will have to re - pair fone and garmin tho but its a doddle
It pays to flatten the battery a tad and recharge as required instead of leaving them stood for months as well if you get my drift