Updated Oregon 300 via webupdater & broke it

[ian-and-penny]

Well not quite: I used webupdater in an attempt to update to the latest firmware for my Oregon 300.

Everything worked, except when I rebooted the GPS I got a message "Unable to Authenticate Maps", and the only map now available is the Basemap.

Prior to the install I had purchased copies of City Navigator 2011 & OzTopo Loaded

Aside from downgrading all the way back to 3.6 (which is known to work), are there any other fixes I can try to get my maps back?

[PesceVerde]

Hi.
OzTopo maps on the Garmin is likely the issue. Someone at GPSAustralia may know a work around, other than using the older software version.

[The Swaggies]

Hi Ian, it's a b@##$r when you try and do these things in a short time frame, then no time next day to fix it.

Firstly are you sure the maps are missing or have they just been disabled. I "un-enabled" all my maps except the standard base map that came with it when I did the upgrade just recently.

Then I just went back into the settings and "re-enabled" the ones I wanted. And I have the Garmin City navigator one, Open Street maps, Tracks for Australia and Doohan's Contours all installed on the card.

They were all there after the install.

Cheers,

Iain

[ian-and-penny]

The map files exist on the Oregon, but they are not available (do not appear) on the map configuration screen to enable/disable.

[The Explorer]

Hi

Not sure why City Navigator is not working...the issue with Oztopo and newer Garmin software/firmware versions is however well documented. AFAIK the only solution to this is to downgrade firmware as detailed in the link below...

http://www.oztopo.com/updates/changes.htm

or give Oztopo the flick and get Garmin Topo.

Cheers
Greg