Quote Originally Posted by catymag View Post
I mean you can downgrade to the previous firmware if you have the gupdate.gcd, but it's not available because the previous one
was the preloaded software in you zumo. .......
If no one has original factory loaded version [i also doubt it's available], we have zumo 590 HWID 1796 UAT003 [v1.11] but it might be very buggy. Worth a try Caty?