nuvi 7xx data loss on software upgrade

[bradders2]

Hi All,
Last night I updated the software on my nuvi 760T from version 2.4 to 2.5 using the web updater. This appeared to be successful but I decided to check a saved route that I wanted to use today. I found that the route data, start point, end point & way points had been deleted or corrupted such that they did not display. Only the route title remained in the route listing. All favourites & "Recently Found" points appeared unaffected. I re-entered the route data, the route calculation screen did not appear and the subsequent map screen showed only straight lines between points. This seemed to confirm that no route calculation had taken place. I eventually deleted the route completely and re-entered it as a new route. This worked as normal and the nuvi performed as advertised today. I can only think that this occurred as a consequence of the software update, but obviously can't prove it. It certainly had me worried!

This post is just a warning to potential updaters.

edit:
Reply from Garmin states that during some software updates the unit will do a full factory reset. Why this should delete only some user data was not stated
Chris B
_________________
Chris B

Garmin nuvi 2595LMT
Garmin nuvi 760T
Memory Map Adventurer 2800

[arriva]

bradders2 how did you do the update,i did a update from version 230 to 250 using webupdater,the unit would not turn on. garmin logo would comeon then the unit would turn it self off and the pc would not recognized the nuvi.reading from another forum lot of people had the same problem but that was from version 230 to 240.turning units into bricks.send the unit to garmin on thursday for repair it seems it connot be fixed got a replacement unit this morning,this unit has sw version 2.10.want to update to 2.50 to scared to do it.

[bradders2]

Hi arriva,
I connected the unit via the USB cable to the PC, it switched on into "connected to PC mode" and then I fired up the Web Updater, it told me that an update was available; I selected this and it updated. This has worked successfully for me updating from 2.10 originally through 2.30 & 2.40 to 2.50.

Your situation sounds pretty scary, I'm sorry, but I can only give you my experience. I suppose you could always try it whilst connected to Garmin on their freephone number. (0808 238 000) during working hours.

Good luck!

Chris B
_________________
Chris B

Garmin nuvi 2595LMT
Garmin nuvi 760T
Memory Map Adventurer 2800

[arriva]

its ok,just did the update to version 2.60 which comes with SiRFInstantFixII .

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