Likes: 
thanks for all your answers but im running in trouble i have put 3.40 there flashed fine. but cards on sd card saying cannot unlock maps. i tried even unlock locked map from [Only registered and activated users can see links. ] post 10 with gimgunlock+mapsigpatch from here and unlock was success. but it fails to read from sd card.
is my unit not down gradable?
what else i can try ?
regards TM
Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Results 1 to 10 of 29
Thread: Nuvi 66LM firmware rollback
Hybrid View
-
22nd April 2015, 12:03 AM #1Junior Member
- Join Date
- Apr 2015
- Location
- moon
- Age
- 39
- Posts
- 5
- Rep Power
- 0
-
22nd April 2015, 12:49 AM #2Garmin/GPS Systems GMod.
- Join Date
- Aug 2011
- Location
- Oz.
- Posts
- 6,880
- Rep Power
- 2569
@tattooman
Reportedly according to [Only registered and activated users can see links. ] if you have V3.40 or earlier there is no problem with map sig when maps are unlocked with the latest gimunlock [0.03+MapSigPatch]. Try downgrading to v3.20 but first check in the current GarminDevice.xml that the previous attempt was in fact successful and it's now showing "SoftwareVersion>340</SoftwareVersion>" not "SoftwareVersion>430</SoftwareVersion>".'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy under [Only registered and activated users can see links. ]. Please don't spam.
[Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].
Reply With Quote
Bookmarks