Zumo User Forums

Hello sussamb, I am having the firmware update problem on my 660 and was trying to find out if anybody has found the solution. I've done many attempts at changing the gupdate.gcd file with no luck. Any suggestions welcome. Thanks Original post: Hi, I'm new here and not a very techie rider, hope you ...

I also have a Zumo 660 with the exact firmware update problems. I was wondering if anyone has found a solution yet? Any help would be appreciated.